The CAWT's Dr. Barbara Siembida-Losch's presentation to the Annual Ontario Onsite Wastewater Association Conference (March 2015).
Insight into Innovative Decentralized Wastewater Technologies.
The CAWT's Dr. Gordon Balch's presentation to the Ontario Association of Sewage Industry Services (OASIS) from October 2014.
Treatment Options for Wastewaters Collected from On-Site Systems
The CAWT's Dr. Gordon Balch's presentation to the Alberta Onsite Wastewater Management Association (March 2015).
Emerging Technologies in Onsite Wastewater Treatment.
The document discusses appropriate decentralized wastewater treatment technologies for rural areas, focusing on Earthizenz Ecofriendly Systems' approach. The system utilizes a baffled reactor for primary treatment, followed by an anaerobic filter and horizontal planted filter for secondary treatment. Vetiver grass is incorporated into treatment ponds and filters to further improve water quality. Case studies demonstrate applying the system across villages by locating primary treatment units near homes and using natural areas like streams for secondary treatment wetlands planted with Vetiver.
This document describes the PHYTORID system, a constructed wetland technology developed by CSIR-National Environmental Engineering Research Institute (NEERI) for decentralized treatment of domestic wastewater. Some key points:
- PHYTORID uses a combination of natural treatment processes through a variety of wetland plants to treat sewage with minimal energy requirements.
- It has been successfully implemented for over 9 years on field projects treating up to 2 MLD of sewage.
- The system provides over 80% removal of biochemical oxygen demand and total suspended solids and reduces levels of nitrogen and phosphorus in treated wastewater.
- PHYTORID offers a low-cost alternative to conventional sewage
Deals with what is activated sludge, mechanisms and kinetics of treatment, design of activated sludge process, secondary clarifiers and their design and bulking sludge, raising sludge and foaming of ASP.
Introduction: Wastewater flow and its characteristics, Wastewater collection systems, Estimation and variation of wastewater flows. Problems of industrial wastewaters, sampling protocol, equalization, neutralization, proportioning processes, volume and strength reduction. Preliminary, primary, secondary and tertiary wastewater treatment processes. Theory
and design of screens, grit chambers, sedimentation, coagulation, flocculation
CH-2 Activated sludge treatment for wastewaterTadviDevarshi
Physico-chemical and biological treatment strategies and their evaluation, Theory of activated sludge process (ASP), extended aeration systems, trickling filters (TF), aerated lagoons, stabilization ponds, oxidation
ditches, sequential batch reactor, rotating biological contactor, etc., Mass balancing in ASP and TF and their design.
This document provides an overview of post-treatment techniques for effluent from UASB (Upflow Anaerobic Sludge Blanket) reactors. It discusses why post-treatment is needed to remove pathogens and pollutants before releasing effluent into the environment. Major post-treatment techniques described include polishing ponds, overland flow processes, submerged aerated biofilters, trickling filters, anaerobic filters, dissolved air flotation, constructed wetlands, activated sludge processes, expanded granular sludge bed reactors, ozonation, aerated fixed beds, biofilters, and zeolite ion exchange. The document concludes that no single post-treatment unit can meet all requirements but that
The CAWT's Dr. Gordon Balch's presentation to the Ontario Association of Sewage Industry Services (OASIS) from October 2014.
Treatment Options for Wastewaters Collected from On-Site Systems
The CAWT's Dr. Gordon Balch's presentation to the Alberta Onsite Wastewater Management Association (March 2015).
Emerging Technologies in Onsite Wastewater Treatment.
The document discusses appropriate decentralized wastewater treatment technologies for rural areas, focusing on Earthizenz Ecofriendly Systems' approach. The system utilizes a baffled reactor for primary treatment, followed by an anaerobic filter and horizontal planted filter for secondary treatment. Vetiver grass is incorporated into treatment ponds and filters to further improve water quality. Case studies demonstrate applying the system across villages by locating primary treatment units near homes and using natural areas like streams for secondary treatment wetlands planted with Vetiver.
This document describes the PHYTORID system, a constructed wetland technology developed by CSIR-National Environmental Engineering Research Institute (NEERI) for decentralized treatment of domestic wastewater. Some key points:
- PHYTORID uses a combination of natural treatment processes through a variety of wetland plants to treat sewage with minimal energy requirements.
- It has been successfully implemented for over 9 years on field projects treating up to 2 MLD of sewage.
- The system provides over 80% removal of biochemical oxygen demand and total suspended solids and reduces levels of nitrogen and phosphorus in treated wastewater.
- PHYTORID offers a low-cost alternative to conventional sewage
Deals with what is activated sludge, mechanisms and kinetics of treatment, design of activated sludge process, secondary clarifiers and their design and bulking sludge, raising sludge and foaming of ASP.
Introduction: Wastewater flow and its characteristics, Wastewater collection systems, Estimation and variation of wastewater flows. Problems of industrial wastewaters, sampling protocol, equalization, neutralization, proportioning processes, volume and strength reduction. Preliminary, primary, secondary and tertiary wastewater treatment processes. Theory
and design of screens, grit chambers, sedimentation, coagulation, flocculation
CH-2 Activated sludge treatment for wastewaterTadviDevarshi
Physico-chemical and biological treatment strategies and their evaluation, Theory of activated sludge process (ASP), extended aeration systems, trickling filters (TF), aerated lagoons, stabilization ponds, oxidation
ditches, sequential batch reactor, rotating biological contactor, etc., Mass balancing in ASP and TF and their design.
This document provides an overview of post-treatment techniques for effluent from UASB (Upflow Anaerobic Sludge Blanket) reactors. It discusses why post-treatment is needed to remove pathogens and pollutants before releasing effluent into the environment. Major post-treatment techniques described include polishing ponds, overland flow processes, submerged aerated biofilters, trickling filters, anaerobic filters, dissolved air flotation, constructed wetlands, activated sludge processes, expanded granular sludge bed reactors, ozonation, aerated fixed beds, biofilters, and zeolite ion exchange. The document concludes that no single post-treatment unit can meet all requirements but that
Need of tertiary treatment for anaerobic wastewater treatmentArvind Kumar
This document provides an overview of a lecture on the need for tertiary treatment of anaerobically treated wastewater. It discusses various wastewater treatment methods including aerobic and anaerobic processes. Specifically, it focuses on the upflow anaerobic sludge blanket (UASB) reactor, which is a widely used high-rate anaerobic system. The UASB reactor uses anaerobic sludge granules to efficiently treat wastewater and produce biogas with low energy consumption and capital costs. Over 900 UASB units are currently operating worldwide for treating municipal and industrial wastewaters.
The document describes the activated sludge process, which is the most common suspended growth process for municipal wastewater treatment. The process involves introducing air or oxygen into a mixture of wastewater and microorganisms to develop biological flocs that reduce organic content. Wastewater and microbes form mixed liquor that undergoes aeration and settling, with clarified effluent discharged and excess sludge wasted or returned. Common activated sludge process types include plug flow, complete mix, contact stabilization, and extended aeration. Design considerations include wastewater characteristics, effluent quality goals, and sludge production.
The document describes a study on treating landfill leachate using a two-stage anaerobic-aerobic system. The system uses an Upflow Anaerobic Sludge Blanket (UASB) reactor for the anaerobic stage followed by a Sequencing Batch Reactor (SBR) for the aerobic stage. The objectives are to determine the performance of the combined system and enhance nitrogen removal. Key parameters like COD, BOD, NH4-N, and NO3-N are monitored in both reactors. Preliminary results show the total system achieves high removals of 91.72% for BOD and 46.44% for COD. Nitrogen removal is 34.75%
The document discusses various aspects of anaerobic wastewater treatment processes. It provides information on the types and characteristics of anaerobic reactors including UASB and EGSB reactors. It also describes the formation of anaerobic granular sludge, which allows high biomass retention and efficient COD removal. Additionally, it compares the kinetics, environmental factors, and advantages of anaerobic versus aerobic wastewater treatment processes.
Leachate management of Constructed wetlands_Yuka Ogata_National Institute for...CRL Asia
The document summarizes a lecture on using constructed wetlands for landfill leachate management. It describes what landfill leachate is, current methods for leachate management including collection and treatment, and introduces constructed wetlands as a natural treatment method. It then outlines a research study at a landfill site in Thailand evaluating the use of a pilot-scale constructed wetland for leachate treatment. The wetland showed good plant growth, 53% water reduction through evapotranspiration, and 51-69% removal of total solids, total carbon, and total Kjeldahl nitrogen.
The document summarizes an experimental study that compared the methane generation potential from brewery wastewater and domestic wastewater using an upflow anaerobic sludge blanket (UASB) reactor. The study involved setting up two experimental systems - one with brewery wastewater and one with domestic wastewater. Various parameters like COD, pH, methane production were monitored over a 15 day period. The results showed that the brewery wastewater had higher COD removal efficiency and methane production compared to the domestic wastewater. The study provides useful insights into evaluating the energy recovery potential from different wastewater sources using anaerobic digestion.
This document summarizes a student's research project on treating whey wastewater from a dairy company using anaerobic, aerobic, and anoxic treatment systems. The student characterized the whey wastewater, conducted treatment in anaerobic, aerobic, and anoxic reactors, and analyzed various parameters such as COD, TOC, TN, and TP before and after each treatment. The highest COD, TOC, TN, and TP removals were achieved in the aerobic reactor, followed by anoxic and then anaerobic reactors. The student concluded that an anaerobic-anoxic-aerobic treatment combination provides better results for whey wastewater treatment compared to
High organic loaded wastes and wastewater creates environmental pollution. The textile wastewater is a serious environmental challenge faced by Bangladesh textile sub sector. The textile wastewater contains organic compounds and synthetic chemicals. Certain chemicals which are used in the textile industry cause environmental or health problems. Due to presence of chemicals, it cause instance allergic skin reaction or even cause cancer. Environmental degradation by the industrial sector is a matter of serious concern in Bangladesh. Textile processing industries is one of the most important industries of Bangladesh with regard to production, export and labor force employment. The major raw material for textile processing is grey fabric and most of materials consist of cotton and blended fabric. Textile processing employs a variety of chemicals depending on the nature of raw material and products such as; enzymes, detergents, dyes, acids, soda and salt. The textile wastewater is a highly polluted in terms of organic matter and suspended matter such as fibers, grease and chemicals. The textile wastewater is usually hot and alkaline with strong smell and color due to use of chemicals dyes. Studies reveled that wastewater from textile industry is highly toxic and has inhibitory effects on an activated sludge and nitrification.
Upflow Anaerobic Sludge Blanket (UASB) Treatment of SewageAravind Samala
TREATMENT OF SEWAGE BASED ON UASB PROCESS. Up flow anaerobic sludge blanket process (UASB),was developed by Lettinga and his co-workers in Holland in the early 1970's
Anaerobic granular sludge bed technology refers to a special kind of reactor concept for the "high rate" anaerobic treatment of wastewater.
The major objectives of the UASB process is:
Pre sedimentation anaerobic wastewater treatment and final sedimentation including sludge stabilization are essentially combined in one reactor making it most attractive high-rate wastewater treatment option.
To produce by products like Methane enriched biogas and nutrient rich sludge.
This document discusses various biological treatment methods for industrial waste. It begins by explaining that biological treatment uses bacteria and microorganisms to break down organic wastes. There are two main types - aerobic treatment which uses oxygen, and anaerobic treatment which does not use oxygen. Several specific aerobic treatment processes are then described in detail, including activated sludge process, sequential batch reactor, and trickling filters. Anaerobic treatment is also covered, noting it converts wastes to methane and is suitable for high-strength wastes. The advantages and disadvantages of both aerobic and anaerobic biological treatment are presented.
This document summarizes a study that determined the bio-kinetic parameters for a sequencing batch reactor (SBR) type sewage treatment plant. Five bench-scale SBRs were operated under different biomass retention times ranging from 2 to 10 days. Samples from the influent, mixed liquor, and effluent were analyzed using standard methods. The study found that the kinetic parameters, including yield coefficient, organism decay rate, BOD removal rate, half velocity constant, and maximum specific growth rate, were within normal ranges for activated sludge. A higher sludge yield and lower organism decay showed that excess sludge production was high in the plants. The biomass retention time was determined to be a useful operating parameter instead of adjusting
This document provides training notes on a sequential batch reactor (SBR) system used for wastewater treatment at Doha South. It discusses key topics like activated sludge treatment principles, important terminology, nitrogen and phosphorus removal processes, and alkalinity and pH control. It also describes the intermittent cycle extended aeration system (ICEAS) used, which operates on a fill, react, settle, draw cycle in a single basin to achieve biological nutrient removal through different treatment phases.
The document discusses sewage treatment processes. It describes compact sewage treatment plants that occupy minimum space and have low operation and maintenance costs. These plants require less manpower and do not cause odor nuisance. They also allow for future expansion and minimal sludge handling. The document then discusses various sewage treatment technologies and their advantages, including fluidized bed reactors which have very low area requirements compared to other processes and allow for efficient treatment.
The document summarizes a presentation on a sewage treatment plant in Delhi. It discusses that the plant was constructed at a cost of Rs360 crore and has 3 channels of 113mld each. Sewage is pumped from 2 pumping stations into the main pumping station and then to the STP, which will generate electricity from methane gas to power the plant. The STP involves primary, secondary, and tertiary treatment stages to remove contaminants and produce treated wastewater suitable for discharge or reuse.
This document provides information on operational mathematics for activated sludge systems. It defines key terms like F/M ratio, MCRT, and WAS. Formulas are given for calculating these values based on inputs like influent BOD, MLSS, aeration tank volume, and flows. The roles of the different zones in a BNR system are also summarized. Operational goals like maintaining the proper F/M ratio and sludge age are discussed.
Technical calculations for the biological treatment plantAlex Tagbo
This document discusses the design and operation of a decentralized wastewater treatment plant in Chennai, India that uses biological treatment processes. The plant serves 55,000 people and uses principles of carbon elimination, nitrification, and denitrification. It follows guidelines from ATV 131, the German technical standard for wastewater treatment plant design. The document outlines the treatment process, design considerations, and compares German and Indian wastewater treatment standards. It also analyzes how treatment plant size and volume requirements vary with influent temperature and population size.
sewage treatment plant by UASB technology royalrup
- The document discusses the design of an UASB-based sewage treatment plant for treating 45 MLD of sewage in Tirupati, India.
- It provides background on UASB technology and reviews its advantages such as low capital and maintenance costs, energy recovery from biogas production, and stable treatment process.
- The objectives are to suggest a sustainable sewage treatment solution for Tirupati's projected 2030 sewage volume and provide design details for UASB components and the overall treatment plant.
Advanced Onsite Wastewater Treatment Technologies and Nitrogen RemovalPete Sabo
Over 360,000 homes on Long Island have inadequate wastewater treatment technologies. Long Island
recently revamped their onsite wastewater treatment laws to mitigate this environmental degradation
from septic systems. This seminar will present information about the advanced wastewater treatment
technologies that significantly reduce the impact of nitrogen on the environment. The presentation will
focus on the role of aerobic treatment technologies and other advanced onsite wastewater treatment
technologies.
Biological Nutrient Removal (BNR) is a process used for nitrogen and phosphorus removal from wastewater before it is discharged into surface or ground water.To control eutrophication in receiving water bodies, biological nutrient removal (BNR) of nitrogen and phosphorus has been widely used in wastewater treatment practice, both for the upgrade of existing wastewater treatment facilities and the design of new facilities.
This document discusses noise pollution, including its definition, sources, and health effects. Noise pollution is defined as unwanted or disruptive sound that negatively impacts quality of life. Transportation systems are a major source of noise pollution in urban areas. Construction equipment also contributes significantly to noise levels. Industrial noise and devices like loud speakers, fans, and air conditioners further add to noise pollution. High noise levels are linked to health issues like high blood pressure, hearing loss, and mental health problems. Planting greenery and properly maintaining vehicles and equipment can help reduce noise pollution.
Need of tertiary treatment for anaerobic wastewater treatmentArvind Kumar
This document provides an overview of a lecture on the need for tertiary treatment of anaerobically treated wastewater. It discusses various wastewater treatment methods including aerobic and anaerobic processes. Specifically, it focuses on the upflow anaerobic sludge blanket (UASB) reactor, which is a widely used high-rate anaerobic system. The UASB reactor uses anaerobic sludge granules to efficiently treat wastewater and produce biogas with low energy consumption and capital costs. Over 900 UASB units are currently operating worldwide for treating municipal and industrial wastewaters.
The document describes the activated sludge process, which is the most common suspended growth process for municipal wastewater treatment. The process involves introducing air or oxygen into a mixture of wastewater and microorganisms to develop biological flocs that reduce organic content. Wastewater and microbes form mixed liquor that undergoes aeration and settling, with clarified effluent discharged and excess sludge wasted or returned. Common activated sludge process types include plug flow, complete mix, contact stabilization, and extended aeration. Design considerations include wastewater characteristics, effluent quality goals, and sludge production.
The document describes a study on treating landfill leachate using a two-stage anaerobic-aerobic system. The system uses an Upflow Anaerobic Sludge Blanket (UASB) reactor for the anaerobic stage followed by a Sequencing Batch Reactor (SBR) for the aerobic stage. The objectives are to determine the performance of the combined system and enhance nitrogen removal. Key parameters like COD, BOD, NH4-N, and NO3-N are monitored in both reactors. Preliminary results show the total system achieves high removals of 91.72% for BOD and 46.44% for COD. Nitrogen removal is 34.75%
The document discusses various aspects of anaerobic wastewater treatment processes. It provides information on the types and characteristics of anaerobic reactors including UASB and EGSB reactors. It also describes the formation of anaerobic granular sludge, which allows high biomass retention and efficient COD removal. Additionally, it compares the kinetics, environmental factors, and advantages of anaerobic versus aerobic wastewater treatment processes.
Leachate management of Constructed wetlands_Yuka Ogata_National Institute for...CRL Asia
The document summarizes a lecture on using constructed wetlands for landfill leachate management. It describes what landfill leachate is, current methods for leachate management including collection and treatment, and introduces constructed wetlands as a natural treatment method. It then outlines a research study at a landfill site in Thailand evaluating the use of a pilot-scale constructed wetland for leachate treatment. The wetland showed good plant growth, 53% water reduction through evapotranspiration, and 51-69% removal of total solids, total carbon, and total Kjeldahl nitrogen.
The document summarizes an experimental study that compared the methane generation potential from brewery wastewater and domestic wastewater using an upflow anaerobic sludge blanket (UASB) reactor. The study involved setting up two experimental systems - one with brewery wastewater and one with domestic wastewater. Various parameters like COD, pH, methane production were monitored over a 15 day period. The results showed that the brewery wastewater had higher COD removal efficiency and methane production compared to the domestic wastewater. The study provides useful insights into evaluating the energy recovery potential from different wastewater sources using anaerobic digestion.
This document summarizes a student's research project on treating whey wastewater from a dairy company using anaerobic, aerobic, and anoxic treatment systems. The student characterized the whey wastewater, conducted treatment in anaerobic, aerobic, and anoxic reactors, and analyzed various parameters such as COD, TOC, TN, and TP before and after each treatment. The highest COD, TOC, TN, and TP removals were achieved in the aerobic reactor, followed by anoxic and then anaerobic reactors. The student concluded that an anaerobic-anoxic-aerobic treatment combination provides better results for whey wastewater treatment compared to
High organic loaded wastes and wastewater creates environmental pollution. The textile wastewater is a serious environmental challenge faced by Bangladesh textile sub sector. The textile wastewater contains organic compounds and synthetic chemicals. Certain chemicals which are used in the textile industry cause environmental or health problems. Due to presence of chemicals, it cause instance allergic skin reaction or even cause cancer. Environmental degradation by the industrial sector is a matter of serious concern in Bangladesh. Textile processing industries is one of the most important industries of Bangladesh with regard to production, export and labor force employment. The major raw material for textile processing is grey fabric and most of materials consist of cotton and blended fabric. Textile processing employs a variety of chemicals depending on the nature of raw material and products such as; enzymes, detergents, dyes, acids, soda and salt. The textile wastewater is a highly polluted in terms of organic matter and suspended matter such as fibers, grease and chemicals. The textile wastewater is usually hot and alkaline with strong smell and color due to use of chemicals dyes. Studies reveled that wastewater from textile industry is highly toxic and has inhibitory effects on an activated sludge and nitrification.
Upflow Anaerobic Sludge Blanket (UASB) Treatment of SewageAravind Samala
TREATMENT OF SEWAGE BASED ON UASB PROCESS. Up flow anaerobic sludge blanket process (UASB),was developed by Lettinga and his co-workers in Holland in the early 1970's
Anaerobic granular sludge bed technology refers to a special kind of reactor concept for the "high rate" anaerobic treatment of wastewater.
The major objectives of the UASB process is:
Pre sedimentation anaerobic wastewater treatment and final sedimentation including sludge stabilization are essentially combined in one reactor making it most attractive high-rate wastewater treatment option.
To produce by products like Methane enriched biogas and nutrient rich sludge.
This document discusses various biological treatment methods for industrial waste. It begins by explaining that biological treatment uses bacteria and microorganisms to break down organic wastes. There are two main types - aerobic treatment which uses oxygen, and anaerobic treatment which does not use oxygen. Several specific aerobic treatment processes are then described in detail, including activated sludge process, sequential batch reactor, and trickling filters. Anaerobic treatment is also covered, noting it converts wastes to methane and is suitable for high-strength wastes. The advantages and disadvantages of both aerobic and anaerobic biological treatment are presented.
This document summarizes a study that determined the bio-kinetic parameters for a sequencing batch reactor (SBR) type sewage treatment plant. Five bench-scale SBRs were operated under different biomass retention times ranging from 2 to 10 days. Samples from the influent, mixed liquor, and effluent were analyzed using standard methods. The study found that the kinetic parameters, including yield coefficient, organism decay rate, BOD removal rate, half velocity constant, and maximum specific growth rate, were within normal ranges for activated sludge. A higher sludge yield and lower organism decay showed that excess sludge production was high in the plants. The biomass retention time was determined to be a useful operating parameter instead of adjusting
This document provides training notes on a sequential batch reactor (SBR) system used for wastewater treatment at Doha South. It discusses key topics like activated sludge treatment principles, important terminology, nitrogen and phosphorus removal processes, and alkalinity and pH control. It also describes the intermittent cycle extended aeration system (ICEAS) used, which operates on a fill, react, settle, draw cycle in a single basin to achieve biological nutrient removal through different treatment phases.
The document discusses sewage treatment processes. It describes compact sewage treatment plants that occupy minimum space and have low operation and maintenance costs. These plants require less manpower and do not cause odor nuisance. They also allow for future expansion and minimal sludge handling. The document then discusses various sewage treatment technologies and their advantages, including fluidized bed reactors which have very low area requirements compared to other processes and allow for efficient treatment.
The document summarizes a presentation on a sewage treatment plant in Delhi. It discusses that the plant was constructed at a cost of Rs360 crore and has 3 channels of 113mld each. Sewage is pumped from 2 pumping stations into the main pumping station and then to the STP, which will generate electricity from methane gas to power the plant. The STP involves primary, secondary, and tertiary treatment stages to remove contaminants and produce treated wastewater suitable for discharge or reuse.
This document provides information on operational mathematics for activated sludge systems. It defines key terms like F/M ratio, MCRT, and WAS. Formulas are given for calculating these values based on inputs like influent BOD, MLSS, aeration tank volume, and flows. The roles of the different zones in a BNR system are also summarized. Operational goals like maintaining the proper F/M ratio and sludge age are discussed.
Technical calculations for the biological treatment plantAlex Tagbo
This document discusses the design and operation of a decentralized wastewater treatment plant in Chennai, India that uses biological treatment processes. The plant serves 55,000 people and uses principles of carbon elimination, nitrification, and denitrification. It follows guidelines from ATV 131, the German technical standard for wastewater treatment plant design. The document outlines the treatment process, design considerations, and compares German and Indian wastewater treatment standards. It also analyzes how treatment plant size and volume requirements vary with influent temperature and population size.
sewage treatment plant by UASB technology royalrup
- The document discusses the design of an UASB-based sewage treatment plant for treating 45 MLD of sewage in Tirupati, India.
- It provides background on UASB technology and reviews its advantages such as low capital and maintenance costs, energy recovery from biogas production, and stable treatment process.
- The objectives are to suggest a sustainable sewage treatment solution for Tirupati's projected 2030 sewage volume and provide design details for UASB components and the overall treatment plant.
Advanced Onsite Wastewater Treatment Technologies and Nitrogen RemovalPete Sabo
Over 360,000 homes on Long Island have inadequate wastewater treatment technologies. Long Island
recently revamped their onsite wastewater treatment laws to mitigate this environmental degradation
from septic systems. This seminar will present information about the advanced wastewater treatment
technologies that significantly reduce the impact of nitrogen on the environment. The presentation will
focus on the role of aerobic treatment technologies and other advanced onsite wastewater treatment
technologies.
Biological Nutrient Removal (BNR) is a process used for nitrogen and phosphorus removal from wastewater before it is discharged into surface or ground water.To control eutrophication in receiving water bodies, biological nutrient removal (BNR) of nitrogen and phosphorus has been widely used in wastewater treatment practice, both for the upgrade of existing wastewater treatment facilities and the design of new facilities.
This document discusses noise pollution, including its definition, sources, and health effects. Noise pollution is defined as unwanted or disruptive sound that negatively impacts quality of life. Transportation systems are a major source of noise pollution in urban areas. Construction equipment also contributes significantly to noise levels. Industrial noise and devices like loud speakers, fans, and air conditioners further add to noise pollution. High noise levels are linked to health issues like high blood pressure, hearing loss, and mental health problems. Planting greenery and properly maintaining vehicles and equipment can help reduce noise pollution.
Advanced Onsite Wastewater Treatment Technologies and Nitrogen RemovalPete Sabo
Over 360,000 homes on Long Island have inadequate wastewater treatment technologies. Long Island
recently revamped their onsite wastewater treatment laws to mitigate this environmental degradation
from septic systems. This seminar will present information about the advanced wastewater treatment
technologies that significantly reduce the impact of nitrogen on the environment. The presentation will
focus on the role of aerobic treatment technologies and other advanced onsite wastewater treatment
technologies.
The document discusses various biological nutrient removal (BNR) processes used to remove nitrogen and phosphorus from municipal wastewater. It describes the main BNR processes as biological nitrogen removal, biological phosphorus removal, and compares several common BNR configurations including integrated fixed film activated sludge (IFAS), sequential batch reactor (SBR), oxidation ditch, membrane biological reactor (MBR), moving bed biofilm reactor (MBBR), and step feed processes. Each process is explained in terms of its treatment approach and advantages and disadvantages for nutrient removal.
1) The document discusses sustainable wastewater treatment, including categories of wastewater sources and types.
2) It describes the various stages of wastewater treatment - screening and primary treatment to remove solids, secondary treatment using biological processes, and tertiary treatment to remove additional contaminants.
3) Challenges in wastewater treatment are addressed, such as aging infrastructure and the need for funding, as well as solutions like upgrading pumps and optimizing aeration.
The document discusses the design and operation of domestic wastewater treatment plants. It covers the objectives of wastewater treatment and describes the major unit processes involved, including preliminary treatment to remove solids, primary treatment using sedimentation to remove settleable solids, secondary biological treatment using activated sludge to reduce organic matter, and advanced treatment methods to remove nutrients like nitrogen and phosphorus. The key operational parameters for activated sludge treatment like solids retention time and oxygen requirements are also summarized.
Different Wastewater treatment processes and developmentshhhoaib
An attempt to compare and review the potential future use of three aerobic biological systems, namely:
Conventional Activated Sludge Process (CASP),
Moving Bed Biofilm Reactor (MBBR),
and Packed-Bed Biofilm Reactor (PBBR)
for on-site treatment of wastewater from residential complexes.
Experimental analysis of phytorid technology installed in sewageSHASHANK SRIVASTAVA
The document analyzes the performance of a phytorid technology sewage disposal system. Phytorid technology uses constructed wetlands with reeds to treat sewage through physical, biological, and chemical processes. The analysis tests parameters like pH, turbidity, BOD, and more on an experimental phytorid bed prototype treating 90 liters of sewage with a 24 hour retention period. Results found the system effectively treats sewage with negligible costs and maintenance needs while producing effluent water that can be reused. In conclusion, decentralized phytorid systems are an efficient wastewater treatment approach for local communities given sufficient land area.
Industry update on nitrogen removal programs across the United States: What d...Buzzards Bay Coalition
An industry update on nitrogen removal programs across the United States. Presented by Rick Cisterna, Senior Associate with Hazen and Sawyer during the Buzzards Bay Coalition's 2011 Decision Makers Workshop series. Learn more at www.savebuzzardsbay.org/DecisionMakers
In this presentation, we tried to cover all the information regarding Reverse Osmosis technology. We have discussed its different types, major parts of Reverse Osmosis i.e Activated Carbon Bed, Ion Exchange Unit, Cartridge Filter and then at the end design steps of Reverse Osmosis.
Nitrification is the biological process where ammonia is converted to nitrite then nitrate by nitrifying bacteria. Phosphates can be removed from wastewater through chemical precipitation, post precipitation of the final effluent, or co-precipitation during secondary biological treatment. Denitrification is the process where nitrates are biologically converted back to nitrogen gas by heterotrophic bacteria under anaerobic conditions using an organic carbon source.
The document discusses establishing a zero discharge system for treating textile effluent. Key points include:
- Zero discharge means recovering all process water for reuse with no effluent discharge.
- Design considerations include effluent quantity/quality variation, suitable unit processes, and durability.
- Textile effluent is characterized by high BOD, COD, TDS, and trace metals from chemicals used.
- A zero discharge system requires assessment, pilot testing, pipeline design, and handling abnormal situations.
- Processes include primary treatment to remove solids, biological treatment using MBRs, and secondary treatment using reverse osmosis.
- Tertiary treatment uses evaporation to
Moffett Superfund Site 26 Update to the Moffett Restoration Advisory BoardSteve Williams
This document summarizes a treatability study and focused feasibility study being conducted at the former NAS Moffett Field Site 26. The treatability study evaluated the effectiveness of an in situ abiotic/biotic treatment technology called EHC to reduce chemicals of concern in groundwater. The study found EHC reduced contaminant concentrations by over 98% within the treatment area. A focused feasibility study is now evaluating monitored natural attenuation, EHC, and other technologies to amend the selected groundwater remedy for the site. The schedule plans to finalize the feasibility study report by April 2012.
Evaluation of a Trickle Flow Leach Bed Reactor for Anaerobic Digestion of Hig...LPE Learning Center
Proceedings available at: http://www.extension.org/67604
Colorado is the second highest producer of high solids cattle waste (HSCW) in the United States. Despite the available resources, Colorado currently has only one operational anaerobic digester treating manure (AgSTAR EPA 2011), which is located at a hog farm in Lamar. Arid climate and limited water resources in Colorado render the implementation of high water demanding conventional AD processes. Studies to date have proposed high solids AD systems capable of digesting organic solid waste (OSW) not more than 40% total solids (TS). Lab tests have shown that HSCW produced in Greeley (Colorado) has an average of 89.4% TS. Multi-stage leach bed reactor (MSLBR) system proposed in the current study is capable of handling HSCW of up to 90% TS.
The document reports on a project to analyze the efficiency, loading capacity, problems, and potential improvements of an effluent treatment plant at Workwear Lanka.
Key findings include:
1. The plant maintains over 90% efficiency in reducing COD levels in effluent. Daily monitoring is needed to maintain efficiency.
2. The equalization tank's loading capacity is 50,000L and helps homogenize waste streams.
3. Common problems include pH variations, froth, and bacterial growth issues. Solutions include improving aeration, dosing, and hydraulic retention times.
4. Potential upgrades include recycling water through tanks multiple times, new flow configurations to improve bacterial activity, and advanced technologies like
The document discusses waste water treatment in the paper and pulp industry. It describes the various stages of treatment including preliminary (screening), primary (sedimentation, flotation, filtration), secondary (anaerobic treatment, aerated lagoons), and tertiary (membrane filtration, ozone treatment). The influent and effluent from a paper mill are analyzed, showing high levels of suspended solids, BOD, COD, chlorides, and sulfates in the influent that are reduced through treatment to meet standards for effluent discharge.
Lecture notes of Environmental Engineering-II as per Solapur university syllabus of TE CIVIL.
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K Orchid college of Engg and Technology,
Solapur
Deals anaerobic ponds for the primary treatment of sewage, stabilization of the settled sludge and BOD removal. It also includes design and physical design of the anaerobic ponds.
This document outlines the key aspects of sludge management in wastewater treatment plants. It discusses the different types of sludge generated, including primary, secondary, and chemical sludge. Treatment processes like thickening, stabilization, conditioning, and dewatering are explained. Common thickening methods include gravity thickeners and belt thickeners. Stabilization is achieved through anaerobic digestion. Dewatering options compared are centrifuges, belt filter presses, and drying beds. The document concludes by proposing designs for sludge treatment units based on calculated sludge quantities and disposal of dewatered sludge to landfill.
Similar to Insight into Innovative Decentralized Wastewater Technologies (20)
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
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TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
“An Outlook of the Ongoing and Future Relationship between Blockchain Technologies and Process-aware Information Systems.” Invited talk at the joint workshop on Blockchain for Information Systems (BC4IS) and Blockchain for Trusted Data Sharing (B4TDS), co-located with with the 36th International Conference on Advanced Information Systems Engineering (CAiSE), 3 June 2024, Limassol, Cyprus.
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
Best 20 SEO Techniques To Improve Website Visibility In SERPPixlogix Infotech
Boost your website's visibility with proven SEO techniques! Our latest blog dives into essential strategies to enhance your online presence, increase traffic, and rank higher on search engines. From keyword optimization to quality content creation, learn how to make your site stand out in the crowded digital landscape. Discover actionable tips and expert insights to elevate your SEO game.
Building Production Ready Search Pipelines with Spark and MilvusZilliz
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
Driving Business Innovation: Latest Generative AI Advancements & Success StorySafe Software
Are you ready to revolutionize how you handle data? Join us for a webinar where we’ll bring you up to speed with the latest advancements in Generative AI technology and discover how leveraging FME with tools from giants like Google Gemini, Amazon, and Microsoft OpenAI can supercharge your workflow efficiency.
During the hour, we’ll take you through:
Guest Speaker Segment with Hannah Barrington: Dive into the world of dynamic real estate marketing with Hannah, the Marketing Manager at Workspace Group. Hear firsthand how their team generates engaging descriptions for thousands of office units by integrating diverse data sources—from PDF floorplans to web pages—using FME transformers, like OpenAIVisionConnector and AnthropicVisionConnector. This use case will show you how GenAI can streamline content creation for marketing across the board.
Ollama Use Case: Learn how Scenario Specialist Dmitri Bagh has utilized Ollama within FME to input data, create custom models, and enhance security protocols. This segment will include demos to illustrate the full capabilities of FME in AI-driven processes.
Custom AI Models: Discover how to leverage FME to build personalized AI models using your data. Whether it’s populating a model with local data for added security or integrating public AI tools, find out how FME facilitates a versatile and secure approach to AI.
We’ll wrap up with a live Q&A session where you can engage with our experts on your specific use cases, and learn more about optimizing your data workflows with AI.
This webinar is ideal for professionals seeking to harness the power of AI within their data management systems while ensuring high levels of customization and security. Whether you're a novice or an expert, gain actionable insights and strategies to elevate your data processes. Join us to see how FME and AI can revolutionize how you work with data!
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
GraphRAG for Life Science to increase LLM accuracyTomaz Bratanic
GraphRAG for life science domain, where you retriever information from biomedical knowledge graphs using LLMs to increase the accuracy and performance of generated answers
GraphRAG for Life Science to increase LLM accuracy
Insight into Innovative Decentralized Wastewater Technologies
1. Insight into Innovative Decentralized
Wastewater Technologies
Barbara Siembida-Lösch
Gordon Balch, Heather Broadbent
Centre for Alternative Wastewater Treatment, Fleming College,
Lindsay,
2015 Annual OOWA Conference & Trade Show, Tuesday, March 24th, 2015, Niagara
Falls, Ontario
2. Outline
• Advanced Treatment Technologies
– residential, communal, and commercial systems
• Legal Framework and Performance Validation
Standards
• CAWT - Applied Research
case study on phosphorus removal
• Future of Decentralized Treatment
2
5. Legal Framework for Advanced
Treatment Systems
• The Ontario Building Code, Part 8: Sewage
Systems, regulates a number of different classes of
onsite sewage systems up to 10,000 l/d (larger
systems are regulated by the Ministry of the
Environment)
• Class 4, typically applied to conventional onsite
systems, is intended to minimize pathogens
released into the environment
– may also include secondary and tertiary (advanced)
treatment systems located between septic tank and
leaching bed
5
6. Approval of Advanced Treatment
Systems
• Several advanced systems, listed under the
Supplementary Standards SB-5 to the
Building Code were evaluated by the Ministry
of the Municipal Affairs and Housing (MMAH)
• The following performance criteria must be
met:
– testing and certification by the NSF
International (U.S.-based) standard
– consideration of Ontario’s
environmental/climatic conditions
– evidence of in-field performance
6
7. Approval Performance Criteria
• As of January1, 2014, the treatment unit effluent
criteria have changed
• These performance criteria now match up with
the national CAN/BNQ 3680-600, “Onsite
Residential Wastewater Treatment technologies”
• The SB-5 units must meet the CAN/BNQ 3680-
600 before January 1, 2017!
7
Secondary quality
effl.
Tertiary quality effluent
9. 9
Advanced Treatment Systems
• Homeowners may want to consider the advanced
systems when:
- properties have inadequate conditions for conventional
systems (e.g., heavy clays, shallow soils, high water
table, etc.)
- limited space to accommodate the size of a
conventional leaching bed
- wanting to provide additional protection to groundwater
by additional nitrate reduction (only some of the
treatment units can reduce nitrate)
10. Enhanced Nitrogen Removal
(stationary fixed film)
10
Anoxic Aerobic Clarifier
Denitrification Nitrification
+
BOD removal
Denitrification
• 2.3 g BOD per g NO3-N
• 3.02 g organic matter per g NO3-N
• Heterotrophic bacteria for generation of carbon source
• Significant portion of BOD generally consumed during nitrification, leaving little
for denitrification
High in
BOD &
NH4
Return unconsumed
Carbon
12. Treatment Options
Domestic
Conventional Septic Systems
Advanced Wastewater Treatment
• Microbial (suspended or fixed) ± aeration
• Physical filtration ± aeration
Alternative
Constructed Wetlands
Engineered Bio Reactors (e.g., S-reducing Bacteria for
Arsenic)
Sorptive media for Phosphorus removal
Moving Bed Bio Reactors for Oxidized N
Ozone
UV
Membrane Bioreactors
others
12
13. CAWT is active in the
following sectors:
• Mining
• Agriculture
• Aquaculture
• Oil & gas
• Pulp & paper
• Food, etc.
14.
15. Phosphorous adsorptive media
for Stormwater runoff
15
• Monitoring studies have identified issues pertaining to leaching of
phosphorus from compost-containing bioretention installations
• A pilot study was conducted to assess the phosphorus removal
performance of bioretention soil mix amended with Imbrium Systems
Sorbtive®Media AI 28x48
• Sorbtive®Media is an engineered granular media containing aluminum
oxide and iron oxide
16. Material and Methods
16
Header Tank 3
Header Tank 2
Header Tank 1
Bioretention Cell 3
Bioretention Cell 2
Bioretention Cell 1
Ball valve
Sump pump with series of ball
valves to control flow rate
Well water inflow
Outflow to Retention
Pond
Side view
Bioretention Cell 4Header Tank 4
Header Tank 5 Bioretention Cell 5
Collection
Tank
17. Artificial Stormwater Composition
17
• 1000 L stormwater was spiked with KH2PO4
• Four target concentrations applied in order the lowest to the highest
(0.2; 0.4; 0.6; 0.8 mg/L)
• Ionic compounds were added to simulate the typical matrix of
stormwater
Target P-basis
concentration
Average TDP
measured value
% of
target
Average TP
measured value
% of
target
(mg/L) (mg/L) (mg/L)
0.2 0.11 56 0.16 78
0.4 0.28 70 0.36 89
0.6 0.46 76 0.54 90
0.8 0.65 82 0.72 90
• Measured phosphorus concentrations were consistently lower than
the target
• The deviations decreased as the target concentration increased
• Dissolved phosphorus concentrations were consistently lower than
total
18. Bioretention Soil Mix Composition
18
Cell Number
Soil Mix Composition (% by volume)
Sand Peat Moss Sorbtive®Media
Bioretention Cell 1
(control)
85% 15% 0%
Bioretention Cell 2 82% 15% 3%
Bioretention Cell 3 80% 15% 5%
Bioretention Cell 4 75% 15% 10%
Bioretention Cell 5 68% 15% 17%
Layers
• Bottom layer: 15 cm of ½-inch stone
• Middle layer: 3 cm of sand
• Top layer: 50 cm of soil mix
19. Phosphorus Removal Performance
19
• The measured concentration difference between
the effluent and header tank was multiplied by five
to estimate phosphorus retained for a given week
• Calculated values were summed for all twenty
weeks
Cumulative Retained Phosphorus Mass
20. 20
Cumulative mass of total dissolved phosphorus (TDP) retained in
each bioretention cell
22. Phosphorus Removal Performance
22
• The percent removal efficiency = (header tank
concentration – effluent concentration)/(header
tank concentration)
• Calculated percent values were averaged for five
weeks
Percent Removal of Phosphorus
23. 23
Percent removal of total dissolved phosphorus (TDP) for each
bioretention cell at each of four different target phosphorus
concentrations
24. 24
Percent removal of total phosphorus (TP) for each bioretention
cell at each of four different target phosphorus concentrations
25. Conclusions
25
• Phosphorus removal using a sand/peat
soil mix can be greatly enhanced
through amendment with Sorbtive®
Media.
• Sorbtive® Media amended bioretention
cells demonstrated much greater
removal of dissolved and total
phosphorus.
• Removal efficiency of the amended
cells reached upwards to 99% and at
least 84% for the duration of the study.
• Effluent pH is relatively unaffected.
27. Future of Decentralized Treatment
27
• Growth of cluster and other decentralized
systems
• Recycling treated effluents
• Management program for onsite systems
• May see greater need for advanced treatment
systems for Nitrate and Phosphorous in
relationship to source water protection
• The global warming potential of septic tanks and
other advanced technologies
29. Ionic Compound
Quantity of salt
added per 990 L
(g)
Sodium Chloride (NaCl) 123.81
Calcium Chloride (CaCl2 ) 24.50
Sodium Sulfate (Na2SO4) 23.35
Sodium Nitrate (NaNO3) 2.81
Potassium Chloride (KCl) 2.59
Magnesium Chloride Hexahydrate ( MgCl2.6H2O) 5.66
Quantity of salts added to 990 L of well water to create artificial
stormwater
• Ionic compounds were added to simulate the typical matrix of
stormwater
• The matrix remained standardized