The City of Alliance has had some bad tasting water for years. The Water plant looked for options. The City hired Arcadis to design a UV Oxidation solution. This presentation describes teh rationale for selecting UV Oxidation for T&O treatment
UV Oxidation has been successfully employed for many difficult-to-treat contaminants in drinking water. This presentation is an overview of some those applications.
Advanced Oxidation Process for Industrial Water Treatment and Waste WaterUus Soedjak
Advanced Oxidation Process for Industrial Water Treatment and Waste Water is a liquid waste treatment technology which utilizes oxidation method using ozone gas. This technology is combined with ultraviolet light
COD reduction of aromatic polluted waste water by Advanced Oxidation Process ...Wade Bitaraf
In most petrochemical complexes and oil refineries the wastewater contains the aromatic compounds among which Benzene, Toluene, Ethyl Benzene and Xylene (BTEX) have harmful effects on environment and human health. The present work mainly deals with the UV-based advanced oxidation processes (AOPs), UV/H2O2 were tested in batch reactor systems to evaluate the removal efficiencies and optimal conditions for the photodegradation of BTEX in order to wastewater treatment. The efficiency of this method was analyzed by evaluating the Chemical Oxygen Demand (COD) as a pollution criterion through the COD reactor. The influence of the basic operational parameters such as initial concentration of H2O2, pH, Temperature, irradiation time and UV amount on the photo degradation of BTEX were also studied. The oxidation rate of BTEX and respectively the reduction rate of COD were low when the oxidation was carried out in the absence of H2O2 or UV light. The addition of proper amount of hydrogen peroxide improved the degradation, while the excess hydrogen peroxide could quench the formation of hydroxyl radicals (•OH). The optimal conditions of suspended slurry with 1.11(g/l) initial concentration of H2O2 and pH value of 3.1 were obtained under three UV lights illumination (6 W). Under the optimal conditions, COD reduction during the initial period of 180 min in UV/H2O2 systems reached about 90%.
UV Oxidation has been successfully employed for many difficult-to-treat contaminants in drinking water. This presentation is an overview of some those applications.
Advanced Oxidation Process for Industrial Water Treatment and Waste WaterUus Soedjak
Advanced Oxidation Process for Industrial Water Treatment and Waste Water is a liquid waste treatment technology which utilizes oxidation method using ozone gas. This technology is combined with ultraviolet light
COD reduction of aromatic polluted waste water by Advanced Oxidation Process ...Wade Bitaraf
In most petrochemical complexes and oil refineries the wastewater contains the aromatic compounds among which Benzene, Toluene, Ethyl Benzene and Xylene (BTEX) have harmful effects on environment and human health. The present work mainly deals with the UV-based advanced oxidation processes (AOPs), UV/H2O2 were tested in batch reactor systems to evaluate the removal efficiencies and optimal conditions for the photodegradation of BTEX in order to wastewater treatment. The efficiency of this method was analyzed by evaluating the Chemical Oxygen Demand (COD) as a pollution criterion through the COD reactor. The influence of the basic operational parameters such as initial concentration of H2O2, pH, Temperature, irradiation time and UV amount on the photo degradation of BTEX were also studied. The oxidation rate of BTEX and respectively the reduction rate of COD were low when the oxidation was carried out in the absence of H2O2 or UV light. The addition of proper amount of hydrogen peroxide improved the degradation, while the excess hydrogen peroxide could quench the formation of hydroxyl radicals (•OH). The optimal conditions of suspended slurry with 1.11(g/l) initial concentration of H2O2 and pH value of 3.1 were obtained under three UV lights illumination (6 W). Under the optimal conditions, COD reduction during the initial period of 180 min in UV/H2O2 systems reached about 90%.
Advanced oxidation processes to recover reverse osmosis cleaning watersacciona
Marina Arnaldos, responsable de desalación de desalación y nuevas tecnologías de ACCIONA Agua, presentó la ponencia “Advanced oxidation processes to recover reverse osmosis cleaning waters for irrigation purposes” en la conferencia anual que la asociación europea de desalación ha celebrado en Roma entre los días 22-26 de mayo de 2016.
Extraction of Heavy Metals From Industrial Waste WaterHashim Khan
This was my topic of research during Bachelors. I made this presentation to give a brief overview of what apparatus i used and the methodologies of my experimentation.
New Techniques of wastewater ManagementPrashant Ojha
Wastewater treatment broadly describes water treatment preparing water no longer needed or suitable for its most recent use for return to the water cycle with minimal environmental issues. Wastewater treatment is distinguished from water treatment by focus on disposal rather than use. Water reclamation implies avoidance of disposal by use of wastewater as a raw water supply. Treatment means removing impurities from water being treated; and some methods of treatment are applicable to both water and wastewater. Production of waste brine, however, may discourage wastewater treatment removing dissolved inorganic solids from water by methods like ion exchange, reverse osmosis, and distillation.
Electrocoagulation (EC), is a rapidly growing area of wastewater treatment, less well known as radio frequency diathermy or short wave electrolysis, is a technique used for wash water treatment, wastewater treatment, industrial processed water, and medical treatment. Electricity-based electrocoagulation technology removes contaminants that are generally more difficult to remove by filtration or chemical treatment systems, such as emulsified oil, total petroleum hydrocarbons, refractory organics, suspended solids, and heavy metals. There are many brands of electrocoagulation devices available and they can range in complexity from a simple anode and cathode to much more complex devices with control over electrode potentials, passivation, anode consumption, cell REDOX potentials as well as the introduction of ultrasonic sound, ultraviolet light and a range of gases and reactants to achieve so-called Advanced Oxidation Processes for refractory or recalcitrant organic substances.
Industries use water that obtained from the water treatment system for a variety
of purposes, such as:
- For manufacturing goods.
- For heating.
- For cooling.
- As carrier of raw material.
- As carrier of waste matter.
- As a solvent.
● The resulting water is then classified as a wastewater.
If a waste stream is found to be hazardous due to corrosivity, neutralization is the primary treatment used. It is used as a pretreatment system before a variety of biological, chemical, and physical treatment processes.
It is the process of adjusting the pH of water through the addition of an acid or a base, depending on the target pH and process requirements. Some processes such as boiler operations and drinking water standards need neutral water at a pH of 7.
The Phosphorus Problem: Treatment Options and Process Monitoring Solutions | YSIXylem Inc.
Recent events have demonstrated that excess phosphorus in receiving waters can create many serious problems including impairment of drinking water supplies. For this reason and others, incorporation of phosphorus limits into NPDES discharge permits is occurring in many states.
Many water resource recovery facilities (WRRFs) are being required to remove phosphorus for the first time and will need to add a process to the flow sheet. A discharge limit of 1.0 mg/L may be achieved most cost-effectively with chemical addition. Enhanced biological treatment may be needed to meet lower limits down to 0.5 mg/L and below. Additionally, biological treatment has other potential benefits.
Regardless of the treatment method, continuous monitoring is essential. Critical parameters include orthophosphate, dissolved oxygen, oxidation-reduction potential (ORP), total suspended solids, and nitrate.
Removal of Pb II from Aqueous Solutions using Activated Carbon Prepared from ...ijtsrd
The recent study explains about the removal of Pb II ions from aqueous solution using activated carbon prepared from Garlic waste. Garlic peels have been used for the production of Carbon by treating with conc.H2SO4 for metal ions removal. Fourier Transform Infrared Spectroscopy and Boehm titration have been used for various physicochemical characterization of the outcome of activated carbon which proclaimed the presence of oxygen containing surface functional groups like phenolic, lactonic and carboxylic in the carbons. In a batch adsorption process the effect of pH and initial metal ion concentration was calculated. The optimum pH for lead adsorption is found to be equal to 6.The resultant activated carbon showed maximum adsorption capacity of Pb II was 210 mg g 1. The waste material which is used in this work is cost effective and easily available for the production of activated carbon. Hence the removal of Pb II from water using the carbons prepared from Garlic peels can act as possible low cost adsorbents for the removal of Pb II from water. R. Mary Nancy Flora | Ashok | Ramanathan ""Removal of Pb (II) from Aqueous Solutions using Activated Carbon Prepared from Garlic Waste"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23365.pdf
Paper URL: https://www.ijtsrd.com/engineering/chemical-engineering/23365/removal-of-pb-ii-from-aqueous-solutions-using-activated-carbon-prepared-from-garlic-waste/r-mary-nancy-flora
Advanced oxidation processes to recover reverse osmosis cleaning watersacciona
Marina Arnaldos, responsable de desalación de desalación y nuevas tecnologías de ACCIONA Agua, presentó la ponencia “Advanced oxidation processes to recover reverse osmosis cleaning waters for irrigation purposes” en la conferencia anual que la asociación europea de desalación ha celebrado en Roma entre los días 22-26 de mayo de 2016.
Extraction of Heavy Metals From Industrial Waste WaterHashim Khan
This was my topic of research during Bachelors. I made this presentation to give a brief overview of what apparatus i used and the methodologies of my experimentation.
New Techniques of wastewater ManagementPrashant Ojha
Wastewater treatment broadly describes water treatment preparing water no longer needed or suitable for its most recent use for return to the water cycle with minimal environmental issues. Wastewater treatment is distinguished from water treatment by focus on disposal rather than use. Water reclamation implies avoidance of disposal by use of wastewater as a raw water supply. Treatment means removing impurities from water being treated; and some methods of treatment are applicable to both water and wastewater. Production of waste brine, however, may discourage wastewater treatment removing dissolved inorganic solids from water by methods like ion exchange, reverse osmosis, and distillation.
Electrocoagulation (EC), is a rapidly growing area of wastewater treatment, less well known as radio frequency diathermy or short wave electrolysis, is a technique used for wash water treatment, wastewater treatment, industrial processed water, and medical treatment. Electricity-based electrocoagulation technology removes contaminants that are generally more difficult to remove by filtration or chemical treatment systems, such as emulsified oil, total petroleum hydrocarbons, refractory organics, suspended solids, and heavy metals. There are many brands of electrocoagulation devices available and they can range in complexity from a simple anode and cathode to much more complex devices with control over electrode potentials, passivation, anode consumption, cell REDOX potentials as well as the introduction of ultrasonic sound, ultraviolet light and a range of gases and reactants to achieve so-called Advanced Oxidation Processes for refractory or recalcitrant organic substances.
Industries use water that obtained from the water treatment system for a variety
of purposes, such as:
- For manufacturing goods.
- For heating.
- For cooling.
- As carrier of raw material.
- As carrier of waste matter.
- As a solvent.
● The resulting water is then classified as a wastewater.
If a waste stream is found to be hazardous due to corrosivity, neutralization is the primary treatment used. It is used as a pretreatment system before a variety of biological, chemical, and physical treatment processes.
It is the process of adjusting the pH of water through the addition of an acid or a base, depending on the target pH and process requirements. Some processes such as boiler operations and drinking water standards need neutral water at a pH of 7.
The Phosphorus Problem: Treatment Options and Process Monitoring Solutions | YSIXylem Inc.
Recent events have demonstrated that excess phosphorus in receiving waters can create many serious problems including impairment of drinking water supplies. For this reason and others, incorporation of phosphorus limits into NPDES discharge permits is occurring in many states.
Many water resource recovery facilities (WRRFs) are being required to remove phosphorus for the first time and will need to add a process to the flow sheet. A discharge limit of 1.0 mg/L may be achieved most cost-effectively with chemical addition. Enhanced biological treatment may be needed to meet lower limits down to 0.5 mg/L and below. Additionally, biological treatment has other potential benefits.
Regardless of the treatment method, continuous monitoring is essential. Critical parameters include orthophosphate, dissolved oxygen, oxidation-reduction potential (ORP), total suspended solids, and nitrate.
Removal of Pb II from Aqueous Solutions using Activated Carbon Prepared from ...ijtsrd
The recent study explains about the removal of Pb II ions from aqueous solution using activated carbon prepared from Garlic waste. Garlic peels have been used for the production of Carbon by treating with conc.H2SO4 for metal ions removal. Fourier Transform Infrared Spectroscopy and Boehm titration have been used for various physicochemical characterization of the outcome of activated carbon which proclaimed the presence of oxygen containing surface functional groups like phenolic, lactonic and carboxylic in the carbons. In a batch adsorption process the effect of pH and initial metal ion concentration was calculated. The optimum pH for lead adsorption is found to be equal to 6.The resultant activated carbon showed maximum adsorption capacity of Pb II was 210 mg g 1. The waste material which is used in this work is cost effective and easily available for the production of activated carbon. Hence the removal of Pb II from water using the carbons prepared from Garlic peels can act as possible low cost adsorbents for the removal of Pb II from water. R. Mary Nancy Flora | Ashok | Ramanathan ""Removal of Pb (II) from Aqueous Solutions using Activated Carbon Prepared from Garlic Waste"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23365.pdf
Paper URL: https://www.ijtsrd.com/engineering/chemical-engineering/23365/removal-of-pb-ii-from-aqueous-solutions-using-activated-carbon-prepared-from-garlic-waste/r-mary-nancy-flora
Adequacy and Efficacy of Treatment Plant Treating Electronics Industry Wastewater with the parameters : BOD, COD, TSS, TDS, Heavy Metals, Nitrogen and Phosphate.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Brokerage session: project idea
Title: Real Time Monitoring for Effective and Sustainable Industrial wastewater Treatment and Compliance
Presented by Stephen Moore, MANTECH
A series of a graphical monologue on hydrology, hydropower, hydraulics and water quality issues. The first issue tries to highlight the role and significance of water filters in the creation of sustainable and healthy human society.The issue depicts the way you can select the best filter for your self-use. Tries to teach you the most popular two techniques of decision making which can be used to make objective decisions when you have many options. The major impurities of water can be removed by the filters but you have to use different filters or combination of filters at different locations as no two locations have the same quality of water. Learn how to distinguish.
Optimization of ultrasonicated membrane anaerobic system (umas) for sewage sl...eSAT Journals
Abstract Ultrasonicated Membrane Anaerobic System UMAS was successfully used for sewage sludge treatment and biogas production. Central Composite Design and Response Surface Methodology were used to determine the optimum conditions in which UMAS produce a maximum content of methane in the biogas produced. The effects of three variables namely pH, chemical oxygen demand (COD) and organic loading rate (OLR) on methane content were evaluated individually and interactively. The optimum conditions obtained were pH 7.74, COD 1061.06 Mg/l and OLR 0.90 kg/m3d. The predicted maximum percentage of methane was 89.72 % and confirmed close to RSM result. Keywords: Optimization, Response Surface Methodology, Sewage Sludge, Ultrasonic, Membrane, Anaerobic Digestion.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...VarunMahajani
Disruption of blood supply to lung alveoli due to blockage of one or more pulmonary blood vessels is called as Pulmonary thromboembolism. In this presentation we will discuss its causes, types and its management in depth.
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
NVBDCP.pptx Nation vector borne disease control programSapna Thakur
NVBDCP was launched in 2003-2004 . Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding arthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria.
New Drug Discovery and Development .....NEHA GUPTA
The "New Drug Discovery and Development" process involves the identification, design, testing, and manufacturing of novel pharmaceutical compounds with the aim of introducing new and improved treatments for various medical conditions. This comprehensive endeavor encompasses various stages, including target identification, preclinical studies, clinical trials, regulatory approval, and post-market surveillance. It involves multidisciplinary collaboration among scientists, researchers, clinicians, regulatory experts, and pharmaceutical companies to bring innovative therapies to market and address unmet medical needs.
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ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
Recomendações da OMS sobre cuidados maternos e neonatais para uma experiência pós-natal positiva.
Em consonância com os ODS – Objetivos do Desenvolvimento Sustentável e a Estratégia Global para a Saúde das Mulheres, Crianças e Adolescentes, e aplicando uma abordagem baseada nos direitos humanos, os esforços de cuidados pós-natais devem expandir-se para além da cobertura e da simples sobrevivência, de modo a incluir cuidados de qualidade.
Estas diretrizes visam melhorar a qualidade dos cuidados pós-natais essenciais e de rotina prestados às mulheres e aos recém-nascidos, com o objetivo final de melhorar a saúde e o bem-estar materno e neonatal.
Uma “experiência pós-natal positiva” é um resultado importante para todas as mulheres que dão à luz e para os seus recém-nascidos, estabelecendo as bases para a melhoria da saúde e do bem-estar a curto e longo prazo. Uma experiência pós-natal positiva é definida como aquela em que as mulheres, pessoas que gestam, os recém-nascidos, os casais, os pais, os cuidadores e as famílias recebem informação consistente, garantia e apoio de profissionais de saúde motivados; e onde um sistema de saúde flexível e com recursos reconheça as necessidades das mulheres e dos bebês e respeite o seu contexto cultural.
Estas diretrizes consolidadas apresentam algumas recomendações novas e já bem fundamentadas sobre cuidados pós-natais de rotina para mulheres e neonatos que recebem cuidados no pós-parto em unidades de saúde ou na comunidade, independentemente dos recursos disponíveis.
É fornecido um conjunto abrangente de recomendações para cuidados durante o período puerperal, com ênfase nos cuidados essenciais que todas as mulheres e recém-nascidos devem receber, e com a devida atenção à qualidade dos cuidados; isto é, a entrega e a experiência do cuidado recebido. Estas diretrizes atualizam e ampliam as recomendações da OMS de 2014 sobre cuidados pós-natais da mãe e do recém-nascido e complementam as atuais diretrizes da OMS sobre a gestão de complicações pós-natais.
O estabelecimento da amamentação e o manejo das principais intercorrências é contemplada.
Recomendamos muito.
Vamos discutir essas recomendações no nosso curso de pós-graduação em Aleitamento no Instituto Ciclos.
Esta publicação só está disponível em inglês até o momento.
Prof. Marcus Renato de Carvalho
www.agostodourado.com
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
This year, the flu season is expected to coincide with a potential increase in other respiratory illnesses. The Karnataka Health Department has launched an awareness campaign highlighting the significance of flu vaccinations. They have set up multiple vaccination centers across Bangalore, making it convenient for residents to receive their shots.
To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
Ohio AWWA City of Alliance Selection of UV Oxidation for Taste & Odor treatment
1. Said Abou Abdallah, Terry Keep and Dr. Dean Reynolds
Ohio AWWA
September 20, 2012
The City of Alliance's Solution for
Taste and Odor Treatment
2. 2
WATER STRESS
IN AN
INTERCONNECTED
WATER SUPPLY
Sources of contaminants in
our water supply:
- Industrial discharge
- Agricultural runoff
- Chemical releases
- Municipal Wastewater
Injection
Well
Extraction
Well
Nutrients increase in Algae Blooms Taste & Odour, Algal Toxins
3. 3
EXAMPLES OF MICROPOLLUTANTS
Nitrosamines (e.g. NDMA)
Disinfection byproducts
Pesticides & Herbicides
Metaldehyde, Atrazine, Isoproturon, others
Petroleum Additives
Including MTBE
Pharmaceuticals & Personal Care Products
Includes potential endocrine disruptors
Taste & Odour Compounds
Seasonal occurrences of MIB, geosmin and others
Algal Toxins
Chronic and acute effects from cyanobacteria-derived
toxins
4. 4
TASTE & ODOUR, ALGAL TOXINS
Seasonal algae blooms occur in surface
waters
Decaying algae blooms result in MIB,
geosmin, algal toxins, other T&O
compounds
Earthy/musty, fishy, swampy, grassy
tastes & odours at low ppt
concentrations
Difficult to remove with conventional
technologies
T&O episodes compromise public
confidence in the safety of the water
5. 5
COMPOUNDS GENERATED BY SOME CYANOBACTERIA
Geosmin
2-Methylisoborneol (MIB)
GSMand MIBcan be detected
by sensitive individual down to
4 ng/L (ppt)
[Geosmin] have been
measured > 3000 ng/L
Aesthetics: T&O cmpds
Cylindrospermopsin (CYN)
Microcystin-LR (MC-LR) [MC]~1800ug/L meas drng bloom
Public Health: Cyanotoxins
W
HO
set lim
it at 1
µg/L
USEPA
added
CNTX
to
the
CCL
6. 6
TASTE AND ODOUR TREATMENT STRATEGIES
• Potassium Permanganate
– Limited Effectiveness
• Powdered Activated Carbon
– Messy PAC & Sludge Handling, no Performance Guarantee
• Granular Activated Carbon
– Frequent & Expensive Change-outs, no Performance Guarantee
• Ozone
– Complicated System & Carcinogenic by-product (Bromate)
• UV-Oxidation
– Simple, Effective for T&O with Simultaneous Disinfection, Guaranteed
Performance for life of system
7. 7
UV / H2O2 FOR TASTE AND ODOUR TREATMENT
UV Advanced Oxidation: Using UV and Hydrogen Peroxide to destroy
trace organic contaminants in water by:
UV-Photolysis
UV-Oxidation
11. 11
Planning and Engineering Approach to the
Final Design
o UV Oxidation System Feasibility Study
o UV Oxidation System Procurement
o UV Oxidation System Final Design Documents
o Design Criteria:
• UVT 92%
• Turbidity < 0.06 NTU
• TOC < 3 mg/l
• Nitrates < 1 mg/l
• pH 6.7 – 6.9
• Average Flow 5.5 MGD/10.0 MGD Max
12. 12
UV Oxidation System Feasibility Study
• Actual Costs of using Powered
Activated Carbon (PAC)
• UV Oxidation Process
• Electrical Costs
• Hydrogen Peroxide Cost
• Chlorination Cost
• Equipment Manufacturer's Variations
• Design Requirements
• Non-Cost factors
13. 13
UV Oxidation System Feasibility Study
• PAC (Powder Activated Carbon)
System Capabilities and
Limitations
• Type of PAC used
• Impact on Other Treatment
Processes
• Operational Difficulties
• Future Limitations
17. 17
UV Oxidation System Feasibility Study:
Findings
• Procurement Recommendations for UV Oxidation System
• Capital Costs and Operation & Maintenance Costs
• Non-Cost Factors (Vendor Experience)
• Impact on Water Users – Water rate, water quality
• Schedule of Implementation
18. 18
UV Oxidation System Procurement
• Traditional Design vs. Pre-selection
• Variations with Manufacturer’s
Designs
• UV Oxidation Equipment Essential
and Critical for Taste and Odor
• UV Oxidation Equipment Represents
Significant Project Cost
• Multiple Available Strategies
• Balancing Qualifications/Experience
and Costs
• Early Procurement Prevents
Duplications and Delays
19. 19
UV Oxidation System
Procurement:
Key Considerations
• Tight Procurement
Documents
• Scope of Equipment
• Warranty
• Proposal Information
• Operating Parameters
• Capital Cost Analysis vs.
Present Worth Analysis
• Bidding Conditions
• Decision Analysis and
Weighting
20. 20
UV Oxidation System: Procurement
• Bid items
• Clear and specific
• Bid Requirements
• Financial Stability
• Experience and Past Performance
• Demonstration of successful
Operations
• Equipment Service and
Support
• Equipment Characteristics and
Flexibility
• Future Capacity
• Operations and Complexity
21. 21
UV Oxidation System: Procurement
• Cost Factors:
• Capital Cost
• O&M Cost
• Common Cost Parameters
• Energy Cost
• Chemical Cost
• Interest rates
• PW period
22. 22
UV Oxidation System:
Effective Integration of Quality and Cost
• Designed to meet the
Client and Project Goals
• Balanced between Cost
and Non-Cost Factors
• Qualifications/Experience
Emphasis
• Broad Spectrum of
Evaluation
23. 23
UV Oxidation System:
Final Design Documents
• Design Documents to Allow the Installation of
the Procured Equipment
• UV Oxidation Units
• Hydrogen Peroxide Feed and Storage System
• Chlorine Feed System
• Future Provisions
• Performance Testing
24. 24
UV Oxidation System:
Final Design Documents
• Two 30-Inch Diameter Reactor in Series
• Cooling System for Use During Filter
Backwash Operations
• Operator Input During Chlorine Trouble Times
• Dedicated Automatic Chlorinator for UV Ox Operation
• System Bypass During Non- Taste and Odor Season
25. 25
UV Oxidation System:
Final Design Documents
• Hydrogen Peroxide System
• One 3,000 Gallon Hydrogen Peroxide Bulk
Storage Tank
• Two Day tanks with Duplex Feed pump
System
• Double Containment Piping
• Chlorine Feed System Capacity Upgrade
• New Chlorine Evaporator
• Dedicated Chlorinator for UV Ox
• Use of Liquid Chlorine with Back-up Gas
Manifolds
• Re-training of personnel on use of new
Chlorine System
26. 26
UV Oxidation System:
Final Design Documents
• Future Chloramination
• Provisions for Feed System
• Provisions for Multiple
Monitoring Locations
• Implementation Schedule
• Construction Project Bidding
in September/October 2012
• Construction NTP November 2012
• Substantial Completion September 20132013
• Performance Testing by December 2013
27. SWIFT ECT 16L30” UV Reactor
30” Reactor
On line UV
Transmittance
Monitor
28. 28
QUESTIONS?
Terry Keep
ECT Sales Manager
Trojan Technologies
519.457.3400
tkeep@trojanuv.com
Said AbouAbdallah, PE | Associate Vice President
Malcolm Pirnie | The Water Division of ARCADIS
216.781.6177
said.abouabdallah @arcadis-us.com