Assess the Denitrification Performance of Fermented and Dark
... (due to requiring little modifications to an existing WWTPs); provide immediate denitrification improvement; does not require high capital investment; ideal for short-term solution, but also viable for long ...
... (due to requiring little modifications to an existing WWTPs); provide immediate denitrification improvement; does not require high capital investment; ideal for short-term solution, but also viable for long ...
1. Liquid Waste Management
... phosphorous and nitrate fertilisers. In sewage and industrial waste, phosphates are introduced from excess foods, industrial discharges and synthetic detergents. Excess phosphorous encourages eutrophication in receiving streams. This phenomenon occurs when water bodies have been enriched with nutrie ...
... phosphorous and nitrate fertilisers. In sewage and industrial waste, phosphates are introduced from excess foods, industrial discharges and synthetic detergents. Excess phosphorous encourages eutrophication in receiving streams. This phenomenon occurs when water bodies have been enriched with nutrie ...
Nutrient Removal and Power Savings in Wastewater Treatment
... If not enough oxygen is present, the heterotrophs may get most of it first ...
... If not enough oxygen is present, the heterotrophs may get most of it first ...
Sustainable nitrogen removal ANAMMOX
... Paques: leading in biological wastewater and gas treatment Paques has over 30 years experience in helping industries and municipalities to reduce their water and carbon footprints and reclaim valuable resources. The cost-effective effluent purification systems produce energy from wastewater, whilst ...
... Paques: leading in biological wastewater and gas treatment Paques has over 30 years experience in helping industries and municipalities to reduce their water and carbon footprints and reclaim valuable resources. The cost-effective effluent purification systems produce energy from wastewater, whilst ...
Indice S3_S4_S5.qxp
... In France, the concentration of pig farming in Brittany is mostly based on liquid waste management systems, lead to an excessive production of wastes by the piggery farms which is frequently higher than the capacity to recycle to the land as fertiliser. Restrictions on landspreading from regulations ...
... In France, the concentration of pig farming in Brittany is mostly based on liquid waste management systems, lead to an excessive production of wastes by the piggery farms which is frequently higher than the capacity to recycle to the land as fertiliser. Restrictions on landspreading from regulations ...
MBR - American Membrane Technology Associations
... For owners and utilities, there are a number of key factors to consider when contemplating selection of an MBR system. Capital costs for a typical MBR system have become more competitive and in many cases less than conventional tertiary or reuse, but still remain marginally more ...
... For owners and utilities, there are a number of key factors to consider when contemplating selection of an MBR system. Capital costs for a typical MBR system have become more competitive and in many cases less than conventional tertiary or reuse, but still remain marginally more ...
Systems and Markets Overview of Anaerobic digestion
... The use of AD for treating sewage sludge is well established and the use of AD for treating industrial wastewaters is increasing rapidly, to the point where there are now more than 1300 vendor-supplied systems in operation or under construction throughout the world. Over 30 types of industries have ...
... The use of AD for treating sewage sludge is well established and the use of AD for treating industrial wastewaters is increasing rapidly, to the point where there are now more than 1300 vendor-supplied systems in operation or under construction throughout the world. Over 30 types of industries have ...
Effluent treatment
... Liquids discharges from the process contain solids, mainly fiber, fillers, and colloidal and dissolved material. The fiber and fillers are minimized and reused. Colloidal and dissolved materials are by-products of the refining of the fibers or carried over from the ...
... Liquids discharges from the process contain solids, mainly fiber, fillers, and colloidal and dissolved material. The fiber and fillers are minimized and reused. Colloidal and dissolved materials are by-products of the refining of the fibers or carried over from the ...
Biological Removal of - Scientific Research Publishing
... showed that, quote: “The alternating conditions were more favourable because they selected for faster nitrifiers due to their oxidation, growth, and decay rates.” These observations are important with respect to both the selection of the experimental mode, and the conclusions drawn from the experime ...
... showed that, quote: “The alternating conditions were more favourable because they selected for faster nitrifiers due to their oxidation, growth, and decay rates.” These observations are important with respect to both the selection of the experimental mode, and the conclusions drawn from the experime ...
phosphorus recycling - now! - P-REX
... (see Cases 1-3). Typical products include struvites and calcium phosphates, which can be utilized as slow release fertilisers or even as animal feed additive. Further technology improvement and innovation can only be achieved after implementation under real-life conditions within existing market str ...
... (see Cases 1-3). Typical products include struvites and calcium phosphates, which can be utilized as slow release fertilisers or even as animal feed additive. Further technology improvement and innovation can only be achieved after implementation under real-life conditions within existing market str ...
Biological Removal of Phosphorus from Wastewater and Recovery
... Water quality is heavily influenced by the availability of nutrients, particularly nitrates and phosphates. Although an excess of these two nutrients leads to eutrophication of the waters and, in the worse case, to the disappearance of the aquatic ecosystems, being the limiting nutrient as far as fr ...
... Water quality is heavily influenced by the availability of nutrients, particularly nitrates and phosphates. Although an excess of these two nutrients leads to eutrophication of the waters and, in the worse case, to the disappearance of the aquatic ecosystems, being the limiting nutrient as far as fr ...
Whitepaper Wastewater treatment in the dairy
... plant used there was based on a reactor system which has been submitted for patenting (called Anaerob Whey Reaktor by its manufacturer). Using the anaerobic contact sludge process, where anaerobic bio-sludge is retained by a centrifugal system, more than 90% of the organic load contained in the whey ...
... plant used there was based on a reactor system which has been submitted for patenting (called Anaerob Whey Reaktor by its manufacturer). Using the anaerobic contact sludge process, where anaerobic bio-sludge is retained by a centrifugal system, more than 90% of the organic load contained in the whey ...
Lecture 7
... – Step1 (Hydrolysis): involves the hydrolysis of higher-molecularmass compounds into compounds suitable for use as a source of energy and carbon. – Step2 (Acidogenesis): conversion of compounds from step1 into lower-molecular-mass intermediate compounds. (nonmethanogenic bacteria) – Step3 (Methanoge ...
... – Step1 (Hydrolysis): involves the hydrolysis of higher-molecularmass compounds into compounds suitable for use as a source of energy and carbon. – Step2 (Acidogenesis): conversion of compounds from step1 into lower-molecular-mass intermediate compounds. (nonmethanogenic bacteria) – Step3 (Methanoge ...
スライド 1
... ◆2nd treatment - Transported in great distance from such as Tokyo metropolitan area and Osaka area ◆Landfill - Highest quantity of waste: transported from subway construction in Fukuoka city →countermeasures for public work projects are effective to ensure waste minimization ...
... ◆2nd treatment - Transported in great distance from such as Tokyo metropolitan area and Osaka area ◆Landfill - Highest quantity of waste: transported from subway construction in Fukuoka city →countermeasures for public work projects are effective to ensure waste minimization ...
Redox/ORP PDF
... and to break down pollutants in the wastewater. The nitrification process is performed by nitrifying bacteria when he Redox value is in the region of +100 to +350mV. In this condition the process is turning ammonia (NH3) into nitrate (NO3-). The de-nitrification process reduces the nitrate (NO 3-) t ...
... and to break down pollutants in the wastewater. The nitrification process is performed by nitrifying bacteria when he Redox value is in the region of +100 to +350mV. In this condition the process is turning ammonia (NH3) into nitrate (NO3-). The de-nitrification process reduces the nitrate (NO 3-) t ...
The Basics of Phosphorus Removal Prepared by Michigan Department of Environmental Quality
... Control of Eutrophication Phosphorus Essential Nutrient Not easily replaced in nature P removal is practical The Phosphorus Cycle ...
... Control of Eutrophication Phosphorus Essential Nutrient Not easily replaced in nature P removal is practical The Phosphorus Cycle ...
Occurrence and removal of estrogens in Brazilian wastewater
... the hydraulic retention time (HRT) of each plant was not considered because most of the systems are old and the real HRT is unknown but shorter due to sludge accumulation. Especially in ponds, the accurate determination of real HRT demands tracer studies, which was outside of the scope of this study ...
... the hydraulic retention time (HRT) of each plant was not considered because most of the systems are old and the real HRT is unknown but shorter due to sludge accumulation. Especially in ponds, the accurate determination of real HRT demands tracer studies, which was outside of the scope of this study ...
Technologies for the Removal of Dissolved Inorganic Substances
... anions are replaced by hydroxide ions. In this way, the dissolved substances are replaced through hydrogen and hydroxide ions, which react, forming water molecules. Ion exchangers are usually are usually of columns filled in down flow current type. Wastewater enters under pressure though the top of ...
... anions are replaced by hydroxide ions. In this way, the dissolved substances are replaced through hydrogen and hydroxide ions, which react, forming water molecules. Ion exchangers are usually are usually of columns filled in down flow current type. Wastewater enters under pressure though the top of ...
(icpr2016)1st * 2nd december 2016 e-isbn 987-967-0850-72-6
... height. Air will be supplied at the bottom of the reactor by a fine air bubble diffuser during reaction time. The reactor will be operated under sequencing batch mode for continuous operation of 24 h. at temperature (27 - 30 o C). 10 min of feeding from the bottom of the bioreactor without stirring, ...
... height. Air will be supplied at the bottom of the reactor by a fine air bubble diffuser during reaction time. The reactor will be operated under sequencing batch mode for continuous operation of 24 h. at temperature (27 - 30 o C). 10 min of feeding from the bottom of the bioreactor without stirring, ...
Aalborg Universitet Influent pathogenic bacteria may go straight into
... effluent communities were very similar while in some plants it was a combination. This indicates that in some plants many microorganisms may go straight through the plant from influent to effluent without being incorporated into activated sludge flocs. The non-growing genus Arcobacter was among othe ...
... effluent communities were very similar while in some plants it was a combination. This indicates that in some plants many microorganisms may go straight through the plant from influent to effluent without being incorporated into activated sludge flocs. The non-growing genus Arcobacter was among othe ...
BIOAUGMENTATION: THE MATAHEMATICS
... many benefits, including cost effectiveness, environmental friendliness and an ability to address some problems not solved by chemical addition. Examples of problems not affected by traditional chemical solutions include enhanced soluble Biochemical Oxygen Demand (BOD5) removal, biological nitrifica ...
... many benefits, including cost effectiveness, environmental friendliness and an ability to address some problems not solved by chemical addition. Examples of problems not affected by traditional chemical solutions include enhanced soluble Biochemical Oxygen Demand (BOD5) removal, biological nitrifica ...
Nitrogen Control III
... anoxic basins or during anoxic periods. This same supernatant can also be the cause of high nitrate results during regular effluent sampling required by the operating permit. When operating a treatment facility with anaerobic digesters, it is beneficial to return digester supernatant during times of ...
... anoxic basins or during anoxic periods. This same supernatant can also be the cause of high nitrate results during regular effluent sampling required by the operating permit. When operating a treatment facility with anaerobic digesters, it is beneficial to return digester supernatant during times of ...
comparison of chemical and biological phosphorus removal in
... Phosphorus has been found to be the main culprit in eutrophication of lakes and water ways which is a major international environmental problem. Two methods are currently being used around the world to remove phosphorus in wastewater: biological and chemical phosphorus removal. Presently, most plant ...
... Phosphorus has been found to be the main culprit in eutrophication of lakes and water ways which is a major international environmental problem. Two methods are currently being used around the world to remove phosphorus in wastewater: biological and chemical phosphorus removal. Presently, most plant ...
live nitrifying bacteria - Fritz Wastewater Products
... pollutants contained in wastewater facilities that can cause serious discharge permit violations. Wastewater treatment plants face a challenging problem meeting permit limits when ammonia levels are above effluent limits. Ammonia is toxic even at very low concentrations to fish and other aquatic org ...
... pollutants contained in wastewater facilities that can cause serious discharge permit violations. Wastewater treatment plants face a challenging problem meeting permit limits when ammonia levels are above effluent limits. Ammonia is toxic even at very low concentrations to fish and other aquatic org ...
Biological wastewater treatment
... The presence of nitrogen in the environment is not always an essential requirement for the biodegradation of pollutants. Heterocyclic nitrogen compounds such as pyridine contain enough nitrogen to satisfy the N growth requirements of the microorganisms. There are also bacteria that are capable of ut ...
... The presence of nitrogen in the environment is not always an essential requirement for the biodegradation of pollutants. Heterocyclic nitrogen compounds such as pyridine contain enough nitrogen to satisfy the N growth requirements of the microorganisms. There are also bacteria that are capable of ut ...
Sewage sludge treatment
Sewage sludge treatment describes the processes used to manage and dispose of sewage sludge produced during sewage treatment. Sludge is mostly water with lesser amounts of solid material removed from liquid sewage. Primary sludge includes settleable solids removed during primary treatment in primary clarifiers. Secondary sludge separated in secondary clarifiers includes treated sewage sludge from secondary treatment bioreactors. Sludge treatment is focused on reducing sludge weight and volume to reduce disposal costs, and on reducing potential health risks of disposal options. Water removal is the primary means of weight and volume reduction, while pathogen destruction is frequently accomplished through heating during thermophilic digestion, composting, or incineration. The choice of a sludge treatment method depends on the volume of sludge generated, and comparison of treatment costs required for available disposal options. Air-drying and composting may be attractive to rural communities, while limited land availability may make aerobic digestion and mechanical dewatering preferable for cities, and economies of scale may encourage energy recovery alternatives in metropolitan areas.Energy may be recovered from sludge through methane gas production during anaerobic digestion or through incineration of dried sludge, but energy yield is often insufficient to evaporate sludge water content or to power blowers, pumps, or centrifuges required for dewatering. Coarse primary solids and secondary sewage sludge may include toxic chemicals removed from liquid sewage by sorption onto solid particles in clarifier sludge. Reducing sludge volume may increase the concentration of some of these toxic chemicals in the sludge.