Lavoro di approfondimento del gruppo San Vitok per il progetto Ambienti@moci. Il lavoro illustra le caratteristiche di una discarica e la possibile bonifica senza impatto ambientale.
1) Anaerobic treatment is a biological process that occurs without oxygen to stabilize organic materials by converting them to methane, carbon dioxide, and ammonia.
2) It has several advantages over aerobic treatment including lower energy requirements, energy generation in the form of methane gas, and lower sludge production.
3) The process involves several groups of microorganisms that break down organic matter in stages through hydrolysis, acidogenesis, acetogenesis, and methanogenesis.
Bioremediation uses living organisms like bacteria and fungi to break down pollutants. There are two types - in situ remediation which treats pollutants on site, and ex situ which treats them off site. Phytoextraction uses plants to absorb contaminants from soil or water. Essential factors for effective microbial bioremediation include microbial populations, oxygen, water, nutrients, temperature, and pH. A case study describes using oil-eating bacteria to clean an oil spill in Mumbai. Bioremediation was also used to clean Railadevi Lake in Thane, India. Limitations include the long time needed and potential food chain contamination.
A report for my Environmental Management for Food Industries
This focused on the first stage in wastewater treatment
Foe the video slide:
https://www.youtube.com/watch?v=GV-DoisLwm0
The document summarizes various waste water treatment processes. It discusses primary treatment which involves removing large solids through screens and sedimentation. Secondary treatment uses biological processes like trickling filters, activated sludge tanks, and lagoons to break down organic matter. Anaerobic digesters are also used. Finally, disinfection through chlorination, UV, or ozonation is discussed to remove pathogens before effluent is discharged or reused.
Sludge is produced from both primary and secondary wastewater treatment processes and contains a high percentage of water. Sludge treatment methods include thickening to reduce the water content, stabilization to reduce pathogens and odors, and dewatering to further reduce water content to around 20% solids for easier handling and disposal. Common stabilization techniques are lime stabilization, heat treatment, anaerobic digestion and composting, which reduce pathogens through high pH, heat exposure, or biological activity. Thickening is done through sedimentation to increase solids content before further treatment or disposal.
The Up-flow Anaerobic Sludge Blanket (UASB) reactor is a form of anaerobic digester used for wastewater treatment. It uses an anaerobic process to form a blanket of granular sludge suspended in the reactor tank. Wastewater flows upwards through the blanket where anaerobic microorganisms degrade the organic pollutants. Over time, the microorganisms form dense granules that efficiently remove biochemical oxygen demand, chemical oxygen demand, and total suspended solids from the wastewater. The UASB reactor also produces biogas containing methane, which can be captured and used as an energy source.
AIR POLLUTION CONTROL course material by Prof S S JAHAGIRDAR,NKOCET,SOLAPUR for BE (CIVIL ) students of Solapur university. Content will be also useful for SHIVAJI and PUNE university students
1) Anaerobic treatment is a biological process that occurs without oxygen to stabilize organic materials by converting them to methane, carbon dioxide, and ammonia.
2) It has several advantages over aerobic treatment including lower energy requirements, energy generation in the form of methane gas, and lower sludge production.
3) The process involves several groups of microorganisms that break down organic matter in stages through hydrolysis, acidogenesis, acetogenesis, and methanogenesis.
Bioremediation uses living organisms like bacteria and fungi to break down pollutants. There are two types - in situ remediation which treats pollutants on site, and ex situ which treats them off site. Phytoextraction uses plants to absorb contaminants from soil or water. Essential factors for effective microbial bioremediation include microbial populations, oxygen, water, nutrients, temperature, and pH. A case study describes using oil-eating bacteria to clean an oil spill in Mumbai. Bioremediation was also used to clean Railadevi Lake in Thane, India. Limitations include the long time needed and potential food chain contamination.
A report for my Environmental Management for Food Industries
This focused on the first stage in wastewater treatment
Foe the video slide:
https://www.youtube.com/watch?v=GV-DoisLwm0
The document summarizes various waste water treatment processes. It discusses primary treatment which involves removing large solids through screens and sedimentation. Secondary treatment uses biological processes like trickling filters, activated sludge tanks, and lagoons to break down organic matter. Anaerobic digesters are also used. Finally, disinfection through chlorination, UV, or ozonation is discussed to remove pathogens before effluent is discharged or reused.
Sludge is produced from both primary and secondary wastewater treatment processes and contains a high percentage of water. Sludge treatment methods include thickening to reduce the water content, stabilization to reduce pathogens and odors, and dewatering to further reduce water content to around 20% solids for easier handling and disposal. Common stabilization techniques are lime stabilization, heat treatment, anaerobic digestion and composting, which reduce pathogens through high pH, heat exposure, or biological activity. Thickening is done through sedimentation to increase solids content before further treatment or disposal.
The Up-flow Anaerobic Sludge Blanket (UASB) reactor is a form of anaerobic digester used for wastewater treatment. It uses an anaerobic process to form a blanket of granular sludge suspended in the reactor tank. Wastewater flows upwards through the blanket where anaerobic microorganisms degrade the organic pollutants. Over time, the microorganisms form dense granules that efficiently remove biochemical oxygen demand, chemical oxygen demand, and total suspended solids from the wastewater. The UASB reactor also produces biogas containing methane, which can be captured and used as an energy source.
AIR POLLUTION CONTROL course material by Prof S S JAHAGIRDAR,NKOCET,SOLAPUR for BE (CIVIL ) students of Solapur university. Content will be also useful for SHIVAJI and PUNE university students
Recycling of waste water & Solid WasteParth Desani
The document discusses recycling of waste water and solid waste. It defines recycling and describes the types of recycling, including recycling of waste water and solid waste. It discusses uses of recycled water in agriculture, industry, and elsewhere. The document also covers municipal solid waste composition, treatment and disposal methods for solid waste like composting and landfilling, and advantages of recycling.
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.
Wheat straw represents a promising source of lignocellulosic biomass for second generation bioethanol production. Global wheat production results in over 850 teragrams of wheat straw annually, which could potentially produce 120 gigaliters of ethanol to replace 93 gigaliters of gasoline. However, pretreatment, enzymatic hydrolysis, fermentation and distillation are required to convert the cellulose, hemicellulose and lignin in wheat straw into ethanol. Ongoing research aims to reduce the costs of pretreatment and enzymes in order to make lignocellulosic ethanol competitive with gasoline.
This document provides information about sustainable wastewater treatment. It begins by defining wastewater and its sources, which include domestic and industrial wastewater. The objectives and methods of wastewater treatment are then outlined, including physical, chemical, and biological processes. Common wastewater treatment systems and processes like septic tanks, activated sludge, and sedimentation are described. The document also discusses wastewater management systems and provides case studies on wastewater treatment in Malaysia and Singapore.
Commercial and residential trash removal, bulk hauling construction services. Clearing these mounds of years-old waste,
called legacy waste, DCC initiative west Recycle is the largest waste management solution in India.
Wastewater treatment involves several stages to manage water discharged from homes and industries. It includes preliminary treatment to remove large objects, primary treatment using sedimentation to remove solids, secondary treatment using bacteria to remove organic waste, and tertiary treatment using methods like UV light or ozonation to further disinfect water before discharge or reuse. The goal is to reduce threats to water sources by eliminating smells, removing solid content, and destroying disease-causing microorganisms.
O documento discute o reuso da água como uma medida econômica e de respeito ao meio ambiente. Ele define o reuso da água como um processo pelo qual a água passa para ser utilizada novamente e explica exemplos de reuso residencial e industrial. Além disso, destaca a importância do reuso da água devido à escassez do recurso e os benefícios econômicos e ambientais da prática.
Esta tesis estudia la digestión anaerobia de lodos residuales secundarios en reactores en lote y continuo para evaluar la solubilización de la materia orgánica y la reducción de sólidos a diferentes temperaturas y valores de pH. Los resultados mostraron que las mejores condiciones para la solubilización fueron a 50-60°C y pH 7 en reactores en lote, obteniendo una eficiencia de solubilización del 31%. Los reactores en continuo operados a 1 día de TRH mostraron una eficiencia de solubilización del 30% en
O documento discute a origem e conceito de sustentabilidade, apresentando exemplos de como o design sustentável pode ser aplicado em setores como construção civil e cerâmica para reduzir o impacto ambiental. O eco-design busca projetar produtos e serviços que minimizem o uso de recursos naturais e promovam a reutilização de materiais.
The document discusses various aspects of the suspended growth bio-treatment process known as the activated sludge process. It describes the process as using microorganisms to consume organic contaminants in wastewater. The activated sludge process is an economical biological wastewater treatment method that can produce high quality effluent. It also discusses different design configurations for activated sludge systems including extended aeration, sequencing batch reactors, and oxidation ditches. BOD removal and nitrification are key functions of the activated sludge process.
Sugar and Distillery Industrial Waste ManagementRahul Wasekar
This presentation is about Sugar and Distillery Waste Management,Nowadays Industrial Waste Management has become an important issue around the globe,large amount of waste generated everyday in these Industries.
INtROdUCtION
Pyrolysis is a thermo chemical decomposition of organic material into liquid, gases and solid at elevated temperature in the absence of oxygen.
“Pyrolysis” is a Greek word: -
Pyro: - ‘fire’/ ‘heat’
lysis: - ‘Separating’ / ‘breakdown.’
Pyrolysis Process is an Endothermic Process.
Pyrolysis Process is Irreversible.
TYPES Of PYROLYSIS
Generally, Three Types of Pyrolysis.
1.Slow Pyrolysis
2.Fast Pyrolysis
3.Flash Pyrolysis
Slow PYROLYSIS
It is characterized by lengthy Solids and gas residence times, low temperature, Slow biomass heating rates. It is used to modify the solid material and minimize the oil product. Temperature – 400-5000C. Residence – Long (5-30 min)
fAST PYROLYSIS
It is a rapid thermal decompotion of carbon-containing materials in the absence of oxygen in moderate to high heating rates. It is the most common method used in research and in practical use. The major product is bio-oil. Temperature – 400-6500c. Residence time – (0.5-2.0 Sec)
FLASH PYROLYSIS
It is very rapid thermal decomposition pyrolysis process. The heating rate is also very high. The main product are gases and bio-oil. Temperature – 700-10000c. Residence Time- (Less than 0.5 Sec)
USES Of PYROLYSIS
It reduces the risk of water pollution. Self- sustain energy. Utilization of renewable resources. It reduces waste going to landfills and greenhouse gas emission.
Applications Of PYROLYSIS
The heat-facilitated browning of sugar is an example of the pyrolysis.
process.
Many common cooking techniques involve pyrolysis like grilling, Frying, toasting and roasting. It is widely used in the chemical industry to produce methanol, activated. carbon, charcoal and other substance from wood.
Advantages & disadvantages of PYROLYSIS
Advantages
Simple. Low-cost technology. Low risk of water pollution. Low risk of Oduors. High recovery rate of resources.
Disadvantages
Technology is still evolving. Market is yet to be developed for char product and pyrolysis liquid.
CONCLUSION
Pyrolysis has been attracting much attention due to its high efficiency and good. environmental performance characteristics. It also provides an opportunity for the processing .
This document discusses different biological unit processes used in waste water treatment. Aerobic processes, like trickling filtration and activated sludge, use microorganisms to break down dissolved organic matter in the presence of oxygen. Anaerobic processes, like sludge digestion, occur without oxygen. Trickling filtration involves waste water flowing over a bed of media to form a microbial film. Activated sludge suspends microbes in air-injected mixed liquor. Sludge digestion breaks down sludge in the absence of oxygen.
Scarpino: un ecocidio genovese. "Dal Non-Progetto al percolato"IlJohn77
Presentazione a cura di Mauro Solari dell'Associazione Amici del Chiaravagna ONLUS sulla storia della discarica di Scarpino a Genova Sestri Ponente e della sua gestione.
E' scorretto parlare oggi di "Emergenza Percolato" perchè è un problema che denunciamo da decine di anni e su cui poco o nulla è stato fatto per prevenire il disastro. Paghiamo oggi per le scelte sbagliate fatte in passato e per tutto quello che si sarebbe potuto fare ma che invece non è stato fatto.
Recycling of waste water & Solid WasteParth Desani
The document discusses recycling of waste water and solid waste. It defines recycling and describes the types of recycling, including recycling of waste water and solid waste. It discusses uses of recycled water in agriculture, industry, and elsewhere. The document also covers municipal solid waste composition, treatment and disposal methods for solid waste like composting and landfilling, and advantages of recycling.
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.
Wheat straw represents a promising source of lignocellulosic biomass for second generation bioethanol production. Global wheat production results in over 850 teragrams of wheat straw annually, which could potentially produce 120 gigaliters of ethanol to replace 93 gigaliters of gasoline. However, pretreatment, enzymatic hydrolysis, fermentation and distillation are required to convert the cellulose, hemicellulose and lignin in wheat straw into ethanol. Ongoing research aims to reduce the costs of pretreatment and enzymes in order to make lignocellulosic ethanol competitive with gasoline.
This document provides information about sustainable wastewater treatment. It begins by defining wastewater and its sources, which include domestic and industrial wastewater. The objectives and methods of wastewater treatment are then outlined, including physical, chemical, and biological processes. Common wastewater treatment systems and processes like septic tanks, activated sludge, and sedimentation are described. The document also discusses wastewater management systems and provides case studies on wastewater treatment in Malaysia and Singapore.
Commercial and residential trash removal, bulk hauling construction services. Clearing these mounds of years-old waste,
called legacy waste, DCC initiative west Recycle is the largest waste management solution in India.
Wastewater treatment involves several stages to manage water discharged from homes and industries. It includes preliminary treatment to remove large objects, primary treatment using sedimentation to remove solids, secondary treatment using bacteria to remove organic waste, and tertiary treatment using methods like UV light or ozonation to further disinfect water before discharge or reuse. The goal is to reduce threats to water sources by eliminating smells, removing solid content, and destroying disease-causing microorganisms.
O documento discute o reuso da água como uma medida econômica e de respeito ao meio ambiente. Ele define o reuso da água como um processo pelo qual a água passa para ser utilizada novamente e explica exemplos de reuso residencial e industrial. Além disso, destaca a importância do reuso da água devido à escassez do recurso e os benefícios econômicos e ambientais da prática.
Esta tesis estudia la digestión anaerobia de lodos residuales secundarios en reactores en lote y continuo para evaluar la solubilización de la materia orgánica y la reducción de sólidos a diferentes temperaturas y valores de pH. Los resultados mostraron que las mejores condiciones para la solubilización fueron a 50-60°C y pH 7 en reactores en lote, obteniendo una eficiencia de solubilización del 31%. Los reactores en continuo operados a 1 día de TRH mostraron una eficiencia de solubilización del 30% en
O documento discute a origem e conceito de sustentabilidade, apresentando exemplos de como o design sustentável pode ser aplicado em setores como construção civil e cerâmica para reduzir o impacto ambiental. O eco-design busca projetar produtos e serviços que minimizem o uso de recursos naturais e promovam a reutilização de materiais.
The document discusses various aspects of the suspended growth bio-treatment process known as the activated sludge process. It describes the process as using microorganisms to consume organic contaminants in wastewater. The activated sludge process is an economical biological wastewater treatment method that can produce high quality effluent. It also discusses different design configurations for activated sludge systems including extended aeration, sequencing batch reactors, and oxidation ditches. BOD removal and nitrification are key functions of the activated sludge process.
Sugar and Distillery Industrial Waste ManagementRahul Wasekar
This presentation is about Sugar and Distillery Waste Management,Nowadays Industrial Waste Management has become an important issue around the globe,large amount of waste generated everyday in these Industries.
INtROdUCtION
Pyrolysis is a thermo chemical decomposition of organic material into liquid, gases and solid at elevated temperature in the absence of oxygen.
“Pyrolysis” is a Greek word: -
Pyro: - ‘fire’/ ‘heat’
lysis: - ‘Separating’ / ‘breakdown.’
Pyrolysis Process is an Endothermic Process.
Pyrolysis Process is Irreversible.
TYPES Of PYROLYSIS
Generally, Three Types of Pyrolysis.
1.Slow Pyrolysis
2.Fast Pyrolysis
3.Flash Pyrolysis
Slow PYROLYSIS
It is characterized by lengthy Solids and gas residence times, low temperature, Slow biomass heating rates. It is used to modify the solid material and minimize the oil product. Temperature – 400-5000C. Residence – Long (5-30 min)
fAST PYROLYSIS
It is a rapid thermal decompotion of carbon-containing materials in the absence of oxygen in moderate to high heating rates. It is the most common method used in research and in practical use. The major product is bio-oil. Temperature – 400-6500c. Residence time – (0.5-2.0 Sec)
FLASH PYROLYSIS
It is very rapid thermal decomposition pyrolysis process. The heating rate is also very high. The main product are gases and bio-oil. Temperature – 700-10000c. Residence Time- (Less than 0.5 Sec)
USES Of PYROLYSIS
It reduces the risk of water pollution. Self- sustain energy. Utilization of renewable resources. It reduces waste going to landfills and greenhouse gas emission.
Applications Of PYROLYSIS
The heat-facilitated browning of sugar is an example of the pyrolysis.
process.
Many common cooking techniques involve pyrolysis like grilling, Frying, toasting and roasting. It is widely used in the chemical industry to produce methanol, activated. carbon, charcoal and other substance from wood.
Advantages & disadvantages of PYROLYSIS
Advantages
Simple. Low-cost technology. Low risk of water pollution. Low risk of Oduors. High recovery rate of resources.
Disadvantages
Technology is still evolving. Market is yet to be developed for char product and pyrolysis liquid.
CONCLUSION
Pyrolysis has been attracting much attention due to its high efficiency and good. environmental performance characteristics. It also provides an opportunity for the processing .
This document discusses different biological unit processes used in waste water treatment. Aerobic processes, like trickling filtration and activated sludge, use microorganisms to break down dissolved organic matter in the presence of oxygen. Anaerobic processes, like sludge digestion, occur without oxygen. Trickling filtration involves waste water flowing over a bed of media to form a microbial film. Activated sludge suspends microbes in air-injected mixed liquor. Sludge digestion breaks down sludge in the absence of oxygen.
Scarpino: un ecocidio genovese. "Dal Non-Progetto al percolato"IlJohn77
Presentazione a cura di Mauro Solari dell'Associazione Amici del Chiaravagna ONLUS sulla storia della discarica di Scarpino a Genova Sestri Ponente e della sua gestione.
E' scorretto parlare oggi di "Emergenza Percolato" perchè è un problema che denunciamo da decine di anni e su cui poco o nulla è stato fatto per prevenire il disastro. Paghiamo oggi per le scelte sbagliate fatte in passato e per tutto quello che si sarebbe potuto fare ma che invece non è stato fatto.
Dossier Impianti Alternativi agli Inceneritori.pdfISEA ODV
Gestione dei Rifiuti:
BREVI CONSIDERAZIONI SULLE ALTERNATIVE IMPIANTISTICHE PER IL TRATTAMENTO DELLA FRAZIONE DI RIFIUTI INDIFFERENZIATI PROVENIENTI DALLA RACCOLTA DIFFERENZIATA
- IL TRATTAMENTO MECCANICO BIOLOGICO
- LA GASSIFICAZIONE
- L’INCENERIMENTO (TERMOVALORIZZAZIONE)
Sostenibilità ed economia circolare: esempi applicativi di simbiosi industrialeServizi a rete
Servizi a Rete TOUR 2022 | Presentazione di Massimo Spizzirri - Responsabile Depurazione e Fognature Acea Ato 2
19-20 ottobre 2022, Centro Congressi La Fornace di Acea Ato 2 a Roma
Tour in Umbria, lavoro di Paolo Catalani, Jessica Proietti, Francesco Dercini e Maria Pia Maggi, classe IB, Istituto Comprensivo Giacomo Matteotti di Cave (Rm).
1. Lavoro di approfondimento Gruppo SanVitok BONIFICA DI UNA DISCARICA di Paolo Proietti e Tomasz Kociuba Progetto Ambienti moci www.lafabbricadellascuola.ning.com Progetto operativo del gruppo Tecnologie di carta www.lascuolachefunziona.it
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9. BONIFICA DI UNA DISCARICA Landfill Mining Il concetto di Landfill Mining consiste nel trattamento di bonifica di vecchie discariche mediante asportazione per escavazione dei rifiuti in esse depositati. Questo tipo di intervento, abbinato al parallelo trattamento biologico in biopile, viene applicato in tutti quei siti che, a causa di gravi problematiche ambientali, richiedono un intervento in tempi brevi, con lo scopo di: recuperare i vecchi volumi della discarica , adeguandoli ai nuovi criteri di sicurezza, oltre ad operazioni meccaniche volte alla separazione di frazioni specifiche dei rifiuti; materiali inorganici riciclabili (metalli), frazione organica e frazione residua ad elevato potere calorifico .
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12. Il prodotto derivante, a principale componente organica, è quello che deve essere sottoposto ad intervento di biostabilizzazione , al fine di ottenerne la mineralizzazione e l’abbattimento del suo potenziale inquinante. (Lo stesso tipo di rifiuto è quello che, depositato in discarica, subisce un processo di decomposizione anaerobica, con emissione di biogas e percolato, che rappresentano una seria minaccia per l’atmosfera e la falda acquifera sotterranea.)
13. A questo punto inizia la fase di degradazione per mezzo di un processo aerobico in biopile statiche (senza rivoltamento) dove, per mezzo di un’adeguata tecnologia, viene insufflata normale aria ambiente tramite ventilatori e canaline a raso pavimentazione. Il processo viene altresì gestito per mezzo di dispositivi atti a controllarne il livello di saturazione di ossigeno ed i valori della temperatura di processo nel cumulo (biopila).