Geotube® Dewatering Technology
... ponds, include aerobic ponds, facultative ponds, anaerobic ponds, polishing ponds and aerated lagoons. They are either formed by excavation or earth perimeter bunding and can reduce BOD and SS to the same levels as mechanical treatment plants. In addition because of the longer residence time of wast ...
... ponds, include aerobic ponds, facultative ponds, anaerobic ponds, polishing ponds and aerated lagoons. They are either formed by excavation or earth perimeter bunding and can reduce BOD and SS to the same levels as mechanical treatment plants. In addition because of the longer residence time of wast ...
Assignment MSWord - Technical Learning College
... 1. ________________ are environmentally sensitive and have a narrow pH range of 6.5-7.5 and require temperatures > 14o C. A. An anaerobic fermenter D. General anaerobic degraders B. Acid formers E. Anaerobic methane formation C. Methane bacteria F. None of the Above 2. Note that the products of the ...
... 1. ________________ are environmentally sensitive and have a narrow pH range of 6.5-7.5 and require temperatures > 14o C. A. An anaerobic fermenter D. General anaerobic degraders B. Acid formers E. Anaerobic methane formation C. Methane bacteria F. None of the Above 2. Note that the products of the ...
Isolation of Thiobacillus sp from aerobic sludge of distillery and dairy
... the microbes start using the elemental sulfur as energy source for their metabolism. During this period sulfate was formed and once sulfur deplete in the reactors the isolated cultures shift to sulfate for their survival and resulting in sulfuric acid formation. This is evidenced by the variation in ...
... the microbes start using the elemental sulfur as energy source for their metabolism. During this period sulfate was formed and once sulfur deplete in the reactors the isolated cultures shift to sulfate for their survival and resulting in sulfuric acid formation. This is evidenced by the variation in ...
Methanol removal from methanol-water mixture using
... treatment in a biologically activated filter (BAF) with counter air flow. Design of a BAF for methanol treatment would require pilot studies to determine the optimum design capacity and appropriate operating conditions for the desired methanol removal efficiency. In 1997, the University of Colorado ...
... treatment in a biologically activated filter (BAF) with counter air flow. Design of a BAF for methanol treatment would require pilot studies to determine the optimum design capacity and appropriate operating conditions for the desired methanol removal efficiency. In 1997, the University of Colorado ...
Membrane bioreactor system for treating synthetic oilfield
... invention to provide a process without any physical and chemical pretreatment, flexible to feed characteristics, easy to operation and an inexpensive operational cost process comprising, (1) aerating of wastewater mixture in bioreactor in the presence of isolated natural halophilic microorganism con ...
... invention to provide a process without any physical and chemical pretreatment, flexible to feed characteristics, easy to operation and an inexpensive operational cost process comprising, (1) aerating of wastewater mixture in bioreactor in the presence of isolated natural halophilic microorganism con ...
Exploris SectionI
... (BOD5), that enters a receiving body of water is a food source for many microorganisms living in the water. The microorganisms utilize the dissolved oxygen in the water to metabolize the organics for there own growth. As the biodegradable organics are consumed the oxygen level in the receiving water ...
... (BOD5), that enters a receiving body of water is a food source for many microorganisms living in the water. The microorganisms utilize the dissolved oxygen in the water to metabolize the organics for there own growth. As the biodegradable organics are consumed the oxygen level in the receiving water ...
NH4 ratio and the nitrogen loading rate on the stability of ANAMMOX
... application of the anammox process. Neither the mechanism by which it occurs nor the conditions under which nitrite affects the performance of continuous bioreactors, have been elucidated. The performance of three upflow anammox reactors fed with synthetic wastewaters containing the same NO2- concen ...
... application of the anammox process. Neither the mechanism by which it occurs nor the conditions under which nitrite affects the performance of continuous bioreactors, have been elucidated. The performance of three upflow anammox reactors fed with synthetic wastewaters containing the same NO2- concen ...
PRUEBA DE COMUNICACIÓN ORAL
... (Uggetti el al., 2009). COD values indicate total organic matter reduction from 700 to some ...
... (Uggetti el al., 2009). COD values indicate total organic matter reduction from 700 to some ...
Ch 19 Waste 2016
... away a cleaning solvent after one use can instead sell it to another company that produces a product that is not harmed by small amounts of contamination in the solvent. ...
... away a cleaning solvent after one use can instead sell it to another company that produces a product that is not harmed by small amounts of contamination in the solvent. ...
Full-Text PDF
... One of the most important environmental problems today is the discharge of wastewater from urban and industrial sources, since human activities have greatly accelerated and extended the natural cycles of nitrogen in the soil, water and atmosphere. In this way, different technologies have been used f ...
... One of the most important environmental problems today is the discharge of wastewater from urban and industrial sources, since human activities have greatly accelerated and extended the natural cycles of nitrogen in the soil, water and atmosphere. In this way, different technologies have been used f ...
Biological Denitrification Using Upflow Biofiltration In Recirculating
... denitrification process. Fermented municipal sludge and swine waste have been shown to be good electron donors, effecting enhanced denitrification rates over methanol and acetate alone (7). Fish waste and uneaten feed constitute a source of organic matter produced within the fish culture unit that c ...
... denitrification process. Fermented municipal sludge and swine waste have been shown to be good electron donors, effecting enhanced denitrification rates over methanol and acetate alone (7). Fish waste and uneaten feed constitute a source of organic matter produced within the fish culture unit that c ...
Chapter 5
... pH has strong effects on nitrification rates. The reactions occurs fastest when pH is from 7.5 – 8.5 although if bacteria exist in flocs or films the pH at the cell surface will be lower than the bulk pH due to the production of H+ ions. The exact mechanism by which pH effect the reaction rates are ...
... pH has strong effects on nitrification rates. The reactions occurs fastest when pH is from 7.5 – 8.5 although if bacteria exist in flocs or films the pH at the cell surface will be lower than the bulk pH due to the production of H+ ions. The exact mechanism by which pH effect the reaction rates are ...
Manure Liquid-solid Separation Factors That Determine System
... product; for example, composting solids. For many production facilities composting warrants consideration. Create another farm enterprise using the separated stream. Vermiculture (earthworm production) using composted manure solids is a way to generate additional farm income from an otherwise low-va ...
... product; for example, composting solids. For many production facilities composting warrants consideration. Create another farm enterprise using the separated stream. Vermiculture (earthworm production) using composted manure solids is a way to generate additional farm income from an otherwise low-va ...
Removal of Ammonia and Phenol from Industrial Waste Water
... considering that heterotrophic bacteria can double in as short a time as 20 minutes. In the time that it takes a single Nitrosomonas cell to double in population, a single E. coli bacterium would have produced a population exceeding 35 trillion cells. None of the Nitrobacteraceae is able to form spo ...
... considering that heterotrophic bacteria can double in as short a time as 20 minutes. In the time that it takes a single Nitrosomonas cell to double in population, a single E. coli bacterium would have produced a population exceeding 35 trillion cells. None of the Nitrobacteraceae is able to form spo ...
Physiochemicals and Heavy Metal Removal from Domestic Wastewater via Phycoremediation
... wastewater has organic matter and human waste such as urine, garbage, food waste and other solid material[14]. Moreover, domestic wastewater also contain mixed of bacteria which can give serious impact on human health and environment if uncontrolled discharged happened [15]. Conventionally, physical ...
... wastewater has organic matter and human waste such as urine, garbage, food waste and other solid material[14]. Moreover, domestic wastewater also contain mixed of bacteria which can give serious impact on human health and environment if uncontrolled discharged happened [15]. Conventionally, physical ...
Recent developments in biological nutrient removal
... system sludge age therefore can be reduced. Such a reduction in system sludge age is particularly beneficial for low temperature wastewaters (10–15°C). The overall objective of IFAS is to increase the treatment capacity and nitrification performance of the existing suspended AS system by adding fixe ...
... system sludge age therefore can be reduced. Such a reduction in system sludge age is particularly beneficial for low temperature wastewaters (10–15°C). The overall objective of IFAS is to increase the treatment capacity and nitrification performance of the existing suspended AS system by adding fixe ...
waste
... – As waste is added, the heat from microbial action builds in the interior and decomposition proceeds – Earthworms, bacteria, soil mite, sow bugs, and other organisms convert waste into high-quality compost ...
... – As waste is added, the heat from microbial action builds in the interior and decomposition proceeds – Earthworms, bacteria, soil mite, sow bugs, and other organisms convert waste into high-quality compost ...
Selenate reduction by a Pseudomonas species: a new mode of
... m M sodium selenate and 0.03% ascorbate (reducing agent). Cells were harvested (16000 x g, 20 min), washed once in potassium phosphate (KP) buffer (50 mM, p H 7.4), and suspended in O2-free buffer (KP, 50 mM, pH 7.4, 0.03% ascorbate, gas phase: 100% N2). Aliquots (0.9 ml) of suspension were added (u ...
... m M sodium selenate and 0.03% ascorbate (reducing agent). Cells were harvested (16000 x g, 20 min), washed once in potassium phosphate (KP) buffer (50 mM, p H 7.4), and suspended in O2-free buffer (KP, 50 mM, pH 7.4, 0.03% ascorbate, gas phase: 100% N2). Aliquots (0.9 ml) of suspension were added (u ...
Evaluation of Treatment Techniques for Selenium Removal
... (ZVI). ZVI when added to the waste stream is oxidized to soluble Fe2+ which then reacts with OH- to form “green rust”. The green rust serves as a reducing agent to reduce selenium, Se(VI) and Se(IV) to insoluble selenite, Se(0) (Hansen et. al., 1996) ZVI is one of the most economic means of reducing ...
... (ZVI). ZVI when added to the waste stream is oxidized to soluble Fe2+ which then reacts with OH- to form “green rust”. The green rust serves as a reducing agent to reduce selenium, Se(VI) and Se(IV) to insoluble selenite, Se(0) (Hansen et. al., 1996) ZVI is one of the most economic means of reducing ...
SOLID WASTE MANAGEMENT: NEW TRENDS IN LANDFILL DESIGN
... improvements to the surrounding local environment (Pohland, 1995). This landfill technology is gaining popularity and has been tried both in pilot and full scale in various landfills in North America, particularly in areas where landfill closure is costly and/or where landfill space is crucial. Engi ...
... improvements to the surrounding local environment (Pohland, 1995). This landfill technology is gaining popularity and has been tried both in pilot and full scale in various landfills in North America, particularly in areas where landfill closure is costly and/or where landfill space is crucial. Engi ...
Phosphorus Removal Guide for Wastewater Operators
... are often programmed to report results as PO4-P. Fortunately, it is easy to convert. In most cases, the default programming can be changed to report as P. But, if not, or if it necessary to review as PO4-P data, it can readily be converted to as P by dividing by three. Example: a 21 mg/L as PO4P is ...
... are often programmed to report results as PO4-P. Fortunately, it is easy to convert. In most cases, the default programming can be changed to report as P. But, if not, or if it necessary to review as PO4-P data, it can readily be converted to as P by dividing by three. Example: a 21 mg/L as PO4P is ...
Assess the Denitrification Performance of Fermented and Dark
... Abstract: The study has assessed the denitrification performance of fermented and dark-fermented biosolids as external carbon sources using lab-scaled Sequencing Batch Reactors (SBRs). This was done by adding fermented and dark-fermented biosolids into anoxic zones of two SBRs, and then assessing th ...
... Abstract: The study has assessed the denitrification performance of fermented and dark-fermented biosolids as external carbon sources using lab-scaled Sequencing Batch Reactors (SBRs). This was done by adding fermented and dark-fermented biosolids into anoxic zones of two SBRs, and then assessing th ...
Nitrogen Removal Guide for Wastewater Operators
... The pre-aeration period will allow for the particulate BOD to be made soluble and therefore available to the denitrifying bacteria. If there isn’t enough BOD coming in to satisfy demand, it may be possible to supplement using internal waste streams. The most common sources of fermented waste are pri ...
... The pre-aeration period will allow for the particulate BOD to be made soluble and therefore available to the denitrifying bacteria. If there isn’t enough BOD coming in to satisfy demand, it may be possible to supplement using internal waste streams. The most common sources of fermented waste are pri ...
Waste Section 3 Motor Oil
... a cleaning solvent after one use can instead sell it to another company that produces a product that is not harmed by small amounts of contamination in the solvent. ...
... a cleaning solvent after one use can instead sell it to another company that produces a product that is not harmed by small amounts of contamination in the solvent. ...
- Lancaster EPrints
... As a novel functional nano-material, graphene has drawn many attentions recently [1-3], with a wide range of applications in modified electrodes [4], chemical power sources [5], solar batteries [6], catalysts [7], pharmaceutical carriers [8] and gas sensors [9]. Containing sufficient carboxyl, carbo ...
... As a novel functional nano-material, graphene has drawn many attentions recently [1-3], with a wide range of applications in modified electrodes [4], chemical power sources [5], solar batteries [6], catalysts [7], pharmaceutical carriers [8] and gas sensors [9]. Containing sufficient carboxyl, carbo ...
Anaerobic digestion
Anaerobic digestion is a collection of processes by which microorganisms break down biodegradable material in the absence of oxygen. The process is used for industrial or domestic purposes to manage waste and/or to produce fuels. Much of the fermentation used industrially to produce food and drink products, as well as home fermentation, uses anaerobic digestion.Anaerobic digestion occurs naturally in some soils and in lake and oceanic basin sediments, where it is usually referred to as ""anaerobic activity"". This is the source of marsh gas methane as discovered by Volta in 1776.The digestion process begins with bacterial hydrolysis of the input materials. Insoluble organic polymers, such as carbohydrates, are broken down to soluble derivatives that become available for other bacteria. Acidogenic bacteria then convert the sugars and amino acids into carbon dioxide, hydrogen, ammonia, and organic acids. These bacteria convert these resulting organic acids into acetic acid, along with additional ammonia, hydrogen, and carbon dioxide. Finally, methanogens convert these products to methane and carbon dioxide. The methanogenic archaea populations play an indispensable role in anaerobic wastewater treatments.It is used as part of the process to treat biodegradable waste and sewage sludge. As part of an integrated waste management system, anaerobic digestion reduces the emission of landfill gas into the atmosphere. Anaerobic digesters can also be fed with purpose-grown energy crops, such as maize.Anaerobic digestion is widely used as a source of renewable energy. The process produces a biogas, consisting of methane, carbon dioxide and traces of other ‘contaminant’ gases. This biogas can be used directly as fuel, in combined heat and power gas engines or upgraded to natural gas-quality biomethane. The nutrient-rich digestate also produced can be used as fertilizer.With the re-use of waste as a resource and new technological approaches which have lowered capital costs, anaerobic digestion has in recent years received increased attention among governments in a number of countries, among these the United Kingdom (2011), Germany and Denmark (2011).