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J Hazard Mater

Title:		Dichloromethane removal and microbial variations in a combination of UV pretreatment and biotrickling filtration
Author(s):		Jianming Y; Wei L; Zhuowei C; Yifeng J; Wenji C; Jianmeng C;
Address:		"Collaborative Innovation Center of Green Pharmaceutical Engineering, Zhejiang University of Technology, Hangzhou, China. College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, China. College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, China. Electronic address: zwcheng@zjut.edu.cn. College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, China. Electronic address: jchen@zjut.edu.cn"
Journal Title:		J Hazard Mater
Year:		2014
Volume:		20140107
Issue:
Page Number:		14 - 22
DOI:		10.1016/j.jhazmat.2013.12.068
ISSN/ISBN:		1873-3336 (Electronic) 0304-3894 (Linking)
Abstract:		"Biofiltration of hydrophobic and/or recalcitrant volatile organic compounds in industry is currently limited. A laboratory-scale system integrating ultraviolet (UV) photodegradation and a biotrickling filter (BTF) was developed to treat dichloromethane (DCM), and this was compared to BTF alone. A combined UV-BTF approach permitted faster biofilm formation and greater removal than BTF. DCM distribution and its photodegradation intermediates revealed that the lower filter of the UV-BTF contributed more to CO2 production; the upper filter assisted more with DCM removal. The UV-BTF kept secretion of extracellular polymeric substances at a normal level with an evenly distributed biomass. Pyrosequencing analysis showed that the dominant population in the combined biofilter was more diverse than that in BTF alone. Our data provide a foundation for understanding the effect of UV pretreatment on BTF performance and the microbial community"
Keywords:		"Biodegradation, Environmental Biodiversity Biofilms/*classification/growth & development/radiation effects Bioreactors/*microbiology DNA, Bacterial/genetics Filtration Methylene Chloride/chemistry/*isolation & purification/radiation effects Oxidation-Redu;"
Notes:		"MedlineJianming, Yu Wei, Liu Zhuowei, Cheng Yifeng, Jiang Wenji, Cai Jianmeng, Chen eng Research Support, Non-U.S. Gov't Netherlands 2014/01/28 J Hazard Mater. 2014 Mar 15; 268:14-22. doi: 10.1016/j.jhazmat.2013.12.068. Epub 2014 Jan 7"