Simultaneous Removal of H2S, NH3and Toluene in a Biofilter Packed with Zeocarbon Carrier
نویسندگان
چکیده
منابع مشابه
Kinetics and Modeling of H2S Removal in a Novel Biofilter
Biofiltration has become a widely accepted technology for the removal of hydrogen sulfide (H2S) which is one of the major odor causing gases present in the air streams of municipal wastewater treatment facilities. In addition to odorous nature, H2S is toxic and corrosive. In this study, a biofilter which uses a novel media was employed in a pumping station which is closely located at the Univer...
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Hydrogen sulfide accumulated under a cover film in a landfill site was treated for 7 months by a full-scale biofilter packed with polyurethane foam cubes. Sampling ports were set along the biofilter bed to investigate H2S removal and microbial characteristics in the biofilter. The H2S was removed effectively by the biofilter, and over 90% removal efficiency was achieved in steady state. Average...
متن کاملBiological elimination of H2S and NH3 from wastegases by biofilter packed with immobilized heterotrophic bacteria.
Biotreatment of various ratios of H2S and NH3 gas mixtures was studied using the biofilters, packed with co-immobilized cells (Arthrobacter oxydans CH8 for NH3 and Pseudomonas putida CH11 for H2S). Extensive tests to determine removal characteristics, removal efficiency, removal kinetics, and pressure drops of the biofilters were performed. To estimate the largest allowable inlet concentration,...
متن کاملRemoval of hydrogen sulphide by immobilized Thiobacillus thioparus in a biofilter packed with polyurethane foam
In this work, a laboratory scale biofilter was design for removal of hydrogen sulphide packed with Thiobacillus thioparus immobilized in polyurethane foam particles (the initial immobilized biomass was 1.6×10 cel g of solid support). Three empty bed residence times (EBRT) were studied (100, 70 and 30 second) and the initial H2S concentration, ranging from 25 to 750 ppmv, in the inlet gas stream...
متن کاملBiodegradation of toluene in a membrane biofilter
A membrane biofilter is used to biodegrade toluene in the gas phase. Active microorganisms are immobilized on the outside of a hollow fiber membrane cartridge and air containing toluene as the contaminant is passed through the membrane fibers. A porous polysulfone membrane containing water in the pore is used through which both toluene and oxygen are diffused to the biofilm attached to the outs...
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ژورنال
عنوان ژورنال: Journal of Environmental Science International
سال: 2008
ISSN: 1225-4517
DOI: 10.5322/jes.2008.17.1.007