NH -N removal from groundwater using attached growth reactor: Wilawan Khanitchaidecha
... which high NO3-N level can cause methemoglobinemia or blue baby syndrome. Therefore, removing NH4-N from groundwater resource is a critical issue in several countries, especially Chyasal area located in Kathmandu Valley, Nepal. There are several biotechnologies which have been proposed for effective ...
... which high NO3-N level can cause methemoglobinemia or blue baby syndrome. Therefore, removing NH4-N from groundwater resource is a critical issue in several countries, especially Chyasal area located in Kathmandu Valley, Nepal. There are several biotechnologies which have been proposed for effective ...
A new and Economical Electrolytic Process
... Due to the sluggish reaction kinetics of the oxygen reduction reaction, the Deacon process is operated at high temperatures (400-450 °C). The process is limited to 6080% single pass conversions and also results in the production of a mole of water for every mole of chlorine. There have been three co ...
... Due to the sluggish reaction kinetics of the oxygen reduction reaction, the Deacon process is operated at high temperatures (400-450 °C). The process is limited to 6080% single pass conversions and also results in the production of a mole of water for every mole of chlorine. There have been three co ...
Oral Surgery for the General Dentist: Faster, Easier, and More
... • If over 5 mm: get primary closure *place gauze over the socket for 1-2 hours. With a chronic sinus condition, get primary closure regardless of size of opening. Dr. Koerner: Collagen plug could be placed in the socket. ...
... • If over 5 mm: get primary closure *place gauze over the socket for 1-2 hours. With a chronic sinus condition, get primary closure regardless of size of opening. Dr. Koerner: Collagen plug could be placed in the socket. ...
Removal of polycyclic aromatic hydrocarbons (PAHs) from
... incineration, and ocean dumping are becoming less viable, because of their environmental impacts, cost, and the increasing volumes produced. Currently over 50,000 wastewater treatment plants are in operation in the European Union, producing a total of about 7.9 million tons of dry solids in year 200 ...
... incineration, and ocean dumping are becoming less viable, because of their environmental impacts, cost, and the increasing volumes produced. Currently over 50,000 wastewater treatment plants are in operation in the European Union, producing a total of about 7.9 million tons of dry solids in year 200 ...
Biological Removal of - Scientific Research Publishing
... 3.1. Flow Variations during the Test Operation During start up of the test operation (early November 2008) the inlet flow was 200 l/h; however, it was soon found to be too high. After around two weeks the inlet flow was lowered to 100 l/h and further down to 60 - 70 l/h after one month. The main rea ...
... 3.1. Flow Variations during the Test Operation During start up of the test operation (early November 2008) the inlet flow was 200 l/h; however, it was soon found to be too high. After around two weeks the inlet flow was lowered to 100 l/h and further down to 60 - 70 l/h after one month. The main rea ...
Assess the Denitrification Performance of Fermented and Dark
... The actual SDNR is likely to be higher than these two values. Because as showed in Fig. 2, during most tested samples, complete denitrification was reached for both reactors 1 and 2, means that the actual amount ...
... The actual SDNR is likely to be higher than these two values. Because as showed in Fig. 2, during most tested samples, complete denitrification was reached for both reactors 1 and 2, means that the actual amount ...
Benefit and Necessity of Roof Design and Maintenance: Designing
... system components covered under the warranty. Therefore, periodic maintenance often may be required for accessories and all other materials that interact with the roof system. For instance, open pitch pans (metal boxes applied around supports) typically need to be refilled every two to three years. ...
... system components covered under the warranty. Therefore, periodic maintenance often may be required for accessories and all other materials that interact with the roof system. For instance, open pitch pans (metal boxes applied around supports) typically need to be refilled every two to three years. ...
Bulking and Foaming Filamentous in Modified Bardenpho Process
... Wastewater composition is one of the significant factors affecting filament formation, as it has been found that slowly degradable organic material and especially lipids favour the growth of both M. parvicella and Nocardia which are the most common foam causing filament types [6,7]. Although, these ...
... Wastewater composition is one of the significant factors affecting filament formation, as it has been found that slowly degradable organic material and especially lipids favour the growth of both M. parvicella and Nocardia which are the most common foam causing filament types [6,7]. Although, these ...
18th International Conference on Bioencapsulation
... Immobilization of microalgae, as part of a global trend of immobilizing microorganisms in an assortment of matrices, is used for a wide variety of biotechnological applications, such as production of metabolites, removing metal from water, and tertiary treatment of wastewater. Immobilization is a 40 ...
... Immobilization of microalgae, as part of a global trend of immobilizing microorganisms in an assortment of matrices, is used for a wide variety of biotechnological applications, such as production of metabolites, removing metal from water, and tertiary treatment of wastewater. Immobilization is a 40 ...
Phosphorus Removal Guide for Wastewater Operators
... For bio-P bugs (aka PAOs, phosphate accumulating organisms) to remove phosphorus, they must first take in VFAs. This has to occur in a zero oxygen environment, but not necessarily the same place that VFAs are formed. The wastewater needs to contain approximately 25 times as much BOD as phosphorus i ...
... For bio-P bugs (aka PAOs, phosphate accumulating organisms) to remove phosphorus, they must first take in VFAs. This has to occur in a zero oxygen environment, but not necessarily the same place that VFAs are formed. The wastewater needs to contain approximately 25 times as much BOD as phosphorus i ...
University of Groningen Analytical solution for facilitated transport
... where A, B and AB are permeate species, mobile carrier, and permeate–carrier complex, respectively. Since the governing equations that describe the steady state transport of permeate species across the liquid
... where A, B and AB are permeate species, mobile carrier, and permeate–carrier complex, respectively. Since the governing equations that describe the steady state transport of permeate species across the liquid
Effluent treatment
... Primary treatment prepares the wastewater for biological treatment. Large solids are removed by screening, and grit. Equalization in a mixing basin, levels out the flows variation and concentrations. Neutralization, where required, follows equalization. Oils, greases and suspended solids are removed ...
... Primary treatment prepares the wastewater for biological treatment. Large solids are removed by screening, and grit. Equalization in a mixing basin, levels out the flows variation and concentrations. Neutralization, where required, follows equalization. Oils, greases and suspended solids are removed ...
Physiochemicals and Heavy Metal Removal from Domestic Wastewater via Phycoremediation
... major elements which are carbon, nitrogen and phosphorus. This is due to the content of the 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 hum ...
... major elements which are carbon, nitrogen and phosphorus. This is due to the content of the 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 hum ...
Treatment of communal sewage sludge: quantities, recent
... to it's content of pathogens and heavy metals. Furthermore, the sludge should be applied according to the fertiliser requirements of the crops grown on the land to prevent leaching of the nutrients, especially nitrogen. Due to hygienic problems and also because of accumulation of heavy metals in the ...
... to it's content of pathogens and heavy metals. Furthermore, the sludge should be applied according to the fertiliser requirements of the crops grown on the land to prevent leaching of the nutrients, especially nitrogen. Due to hygienic problems and also because of accumulation of heavy metals in the ...
Supporting Information Mass balance and life cycle
... significantly reduced by lower nutrients requirements and higher oil yield on the basis of 1 unit of biomass for low N conditions. On the other hand, the Normal N case performs slightly better for this integrated system in terms of energy recovery from algal biomass, and the annual production of ene ...
... significantly reduced by lower nutrients requirements and higher oil yield on the basis of 1 unit of biomass for low N conditions. On the other hand, the Normal N case performs slightly better for this integrated system in terms of energy recovery from algal biomass, and the annual production of ene ...
Aalborg Universitet
... pay a fee to be involved which covered a significant part of the project expenses. Fifty plants have participated in one or more years, and 28 plants in all 6 years. Two private companies in the water industry, Krüger A/S and Kemira A/S have also participated. The treatment plants cover a wide range ...
... pay a fee to be involved which covered a significant part of the project expenses. Fifty plants have participated in one or more years, and 28 plants in all 6 years. Two private companies in the water industry, Krüger A/S and Kemira A/S have also participated. The treatment plants cover a wide range ...
Sustainable nitrogen removal ANAMMOX
... nitrogen cycle. Anammox bacteria convert ammonium (NH4+) and ...
... nitrogen cycle. Anammox bacteria convert ammonium (NH4+) and ...
Occurrence and removal of estrogens in Brazilian wastewater
... It is also important to determine the concentrations and fate of estrogenic compounds in Brazilian WWTPs since there are limited studies on these compounds in wastewater systems, receiving bodies (water and sediments) and drinking water (Jardim (Jardim et al., 2012; Montagner and Jardim, 2011; Morei ...
... It is also important to determine the concentrations and fate of estrogenic compounds in Brazilian WWTPs since there are limited studies on these compounds in wastewater systems, receiving bodies (water and sediments) and drinking water (Jardim (Jardim et al., 2012; Montagner and Jardim, 2011; Morei ...
John E. Butler M.D. Joshua Yorgason M.D
... edge freshening if no progress is seen. This nonsurgical method was initially reported to have a 70% success rate, and this author has obtained similar results using it as the sole therapy for perforations occupying less than 25% of the drum area.[7,8 ] Other recently reported forms of office treatm ...
... edge freshening if no progress is seen. This nonsurgical method was initially reported to have a 70% success rate, and this author has obtained similar results using it as the sole therapy for perforations occupying less than 25% of the drum area.[7,8 ] Other recently reported forms of office treatm ...
ION SELECTIVE ELECTRODES
... called Electromotive force, which is the driving force for the flow of electricity through the external circuit. This happens only when EMF is negative. ...
... called Electromotive force, which is the driving force for the flow of electricity through the external circuit. This happens only when EMF is negative. ...
BIOAUGMENTATION: THE MATAHEMATICS
... Operators and managers of industrial wastewater treatment facilities are under increased pressure to meet their effluent quality requirements. This pressure is due to several factors, including environmental restrictions that are tightening allowable final permit levels and increased corporate press ...
... Operators and managers of industrial wastewater treatment facilities are under increased pressure to meet their effluent quality requirements. This pressure is due to several factors, including environmental restrictions that are tightening allowable final permit levels and increased corporate press ...
(icpr2016)1st * 2nd december 2016 e-isbn 987-967-0850-72-6
... are: (i) to characterize the physical properties of AGS exposed to toxic shock load of metaldehyde. (ii) to determine microbial diversity in aerobic granular sludge. (iii) to examine the effect of metaldehyde on extracellular polymeric substances (EPS). (iv) to study the removal performance of metal ...
... are: (i) to characterize the physical properties of AGS exposed to toxic shock load of metaldehyde. (ii) to determine microbial diversity in aerobic granular sludge. (iii) to examine the effect of metaldehyde on extracellular polymeric substances (EPS). (iv) to study the removal performance of metal ...
Determination of Environmental Benefit application form DEB
... accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the b ...
... accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the b ...
CHAPTER 6
... universally accepted - except that the term typically implies that some level of treatment beyond conventional secondary processes is involved. A specific definition can vary somewhat depending on whether the application addresses research, design, or operations. Within the scope of design and opera ...
... universally accepted - except that the term typically implies that some level of treatment beyond conventional secondary processes is involved. A specific definition can vary somewhat depending on whether the application addresses research, design, or operations. Within the scope of design and opera ...
wastewater treatment – new challenges
... A typical large wastewater treatment plant in Sweden consists normally of pre-treatment by screens, aerated grit chambers, and pre-sedimentation to which precipitation agents are added (often ferrous sulfate), followed by pre-denitrification and a polishing step with addition of a precipitation agen ...
... A typical large wastewater treatment plant in Sweden consists normally of pre-treatment by screens, aerated grit chambers, and pre-sedimentation to which precipitation agents are added (often ferrous sulfate), followed by pre-denitrification and a polishing step with addition of a precipitation agen ...
Membrane bioreactor
Membrane bioreactor (MBR) is the combination of a membrane process like microfiltration or ultrafiltration with a suspended growth bioreactor, and is now widely used for municipal and industrial wastewater treatment with plant sizes up to 80,000 population equivalent (i.e. 48 million liters per day).