Results 181 to 190 of about 12,077 (233)
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Active compost biofiltration of toluene
Biodegradation, 1997Composting of leaves and alfalfa (i.e. active compost) was used for the biofiltration of toluene-contaminated air in a 6-L biofilter (initial bed height: 180 mm). During the thermophilic phase (45 to 55 degrees C), toluene biodegradation rates reached 110 g toluene.m-3.h-1 at an inlet concentration of about 5 g.m-3 and a gas residence time of 90 ...
Y, Matteau, B, Ramsay
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Toluene Biofiltration Enhanced by Ryegrass
Bulletin of Environmental Contamination and Toxicology, 2013Toluene biofiltration by microorganisms (an unplanted treatment) and by the combination of ryegrass (Lolium perenne L.) and microorganisms (a planted treatment) was investigated in this study. The results showed that toluene was completely removed by the unplanted and the planted biofilters in less than 0.2 g m⁻³ inlet toluene concentration.
Zhongjun, Xu, Meng, Wu, Yanyun, He
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Biofiltration of volatile organic compounds
Applied Microbiology and Biotechnology, 2005The removal of volatile organic compounds (VOCs) from contaminated airstreams has become a major air pollution concern. Improvement of the biofiltration process commonly used for the removal of odorous compounds has led to a better control of key parameters, enabling the application of biofiltration to be extended also to the removal of VOCs. Moreover,
Luc, Malhautier +3 more
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2004
Biofiltration is the use of microorganisms, immobilized on a biologically active solid support, to treat chemicals in an airstream. Although the term implies a physical process, the process is biochemical and will not likely be changed in the near future.
Gregory T. Kleinheinz, Phillip C. Wright
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Biofiltration is the use of microorganisms, immobilized on a biologically active solid support, to treat chemicals in an airstream. Although the term implies a physical process, the process is biochemical and will not likely be changed in the near future.
Gregory T. Kleinheinz, Phillip C. Wright
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BOM removal during biofiltration
Journal AWWA, 1998Although the biofiltration process may not control the design of a filter bed, results described here can help the engineer better understand the tradeoffs.Pilot‐scale biofiltration experiments were conducted to determine how empty bed contact time (EBCT) and hydraulic loading rate (HLR) affected the removal of biodegradable organic matter (BOM).
Kenneth H. Carlson, Gary L. Amy
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North American biofiltration practices
AWWA Water Science, 2019AbstractBiological filtration (biofiltration) is the operational practice of managing, maintaining, and promoting biological activity on granular media in a filter to enhance the removal of organic and inorganic constituents before treated water is introduced into the distribution system.
Ashley N. Evans +3 more
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ASAIO transactions, 1989
Biofiltration is a hemodiafiltration technique performed with a base-free dialysate and simultaneous infusion in postdilution mode of isotonic bicarbonate solution. This technique has the advantages without the inconveniences of bicarbonate dialysis that result from complicated hardware and the need of frequent trouble shooting.
N K, Man +4 more
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Biofiltration is a hemodiafiltration technique performed with a base-free dialysate and simultaneous infusion in postdilution mode of isotonic bicarbonate solution. This technique has the advantages without the inconveniences of bicarbonate dialysis that result from complicated hardware and the need of frequent trouble shooting.
N K, Man +4 more
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Buffer kinetics in biofiltration.
The International journal of artificial organs, 1986A condition of metabolic alkalosis has been generally observed in patients undergoing regular biofiltration (BF). The aim of this study was to assess buffer kinetics during a dialysis session in five patients regularly treated by BF for 10 months (dialyzer Biospal 3000S, Qb 301; Qd 545; UF 36.76 ml/min; dialysate CH3 COO 38 mEq/L; replacement fluid ...
FERIANI M +8 more
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Giornale italiano di nefrologia : organo ufficiale della Societa italiana di nefrologia, 2012
Acetate-free biofiltration is a dialysis method with high biocompatibility. The lack of acetate results in decreased stimulation of the production of inflammatory mediators. Other favorable features have been added over the years, such as the possibility to modulate the concentration of potassium in the dialysate, thereby reducing the risk of ...
Mauro, Martello, Marina, Di Luca
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Acetate-free biofiltration is a dialysis method with high biocompatibility. The lack of acetate results in decreased stimulation of the production of inflammatory mediators. Other favorable features have been added over the years, such as the possibility to modulate the concentration of potassium in the dialysate, thereby reducing the risk of ...
Mauro, Martello, Marina, Di Luca
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Biofiltration for BTEX Removal
Critical Reviews in Environmental Science and Technology, 2012Benzene, toluene, ethylbenzene, and xylene (BTEX) biofiltration is an increasingly popular research area because it offers a relatively cheap solution to limit emissions of these toxic agents to the atmosphere. The authors review different technological options for biofiltration, and discuss the main influencing factors including type of packing ...
Farzana Haque +2 more
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