標題: Microbial populations analysis and field application of biofilter for the removal of volatile-sulfur compounds from swine wastewater treatment system
作者: Ho, Kuo-Ling
Chung, Ying-Chien
Lin, Yueh-Hsien
Tseng, Ching-Ping
生物科技學系
Department of Biological Science and Technology
關鍵字: hydrogen sulfide;methanethiol;dimethyl sulfide;dimethyl disulfide;FISH
公開日期: 1-四月-2008
摘要: A biofilter packed with granular activated carbon (GAC) was applied to eliminate volatile-sulfur compounds (VSC) emitted from solid-liquid separation tank in swine wastewater treatment system. Hydrogen sulfide, methanethiol, dimethyl disulfide, and dimethyl sulfide were effectively reduced to 96-100% at gas residence times of 13-30 s. Elemental sulfur and sulfate are their primary oxidation metabolites. Regarding odor, an average of 86% reduction was achieved at short residence time (13 s). In addition, bioaerosol emissions could also be effectively reduced by 90% with the biofilter. Advantages of the system include low moisture demand, low pressure drop, and high biofilm stability. Further characterization of bacterial populations of the activated carbon samples using the fluorescent in situ hybridization (FISH) technique revealed that Pseudomonas sp. remained the predominant community (56-70%) after long-term evaluation of 415 days. (c) 2007 Published by Elsevier B.V.
URI: http://dx.doi.org/10.1016/j.jhazmat.2007.07.021
http://hdl.handle.net/11536/9519
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2007.07.021
期刊: JOURNAL OF HAZARDOUS MATERIALS
Volume: 152
Issue: 2
起始頁: 580
結束頁: 588
顯示於類別:期刊論文


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