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Front Environ Sci Eng

Title:		Removal of odors and VOCs in municipal solid waste comprehensive treatment plants using a novel three-stage integrated biofilter: Performance and bioaerosol emissions
Author(s):		Liu J; Yue P; Zang N; Lu C; Chen X;
Address:		"Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control, Beijing University of Civil Engineering and Architecture, Beijing, 100044 China. GRID: grid.411629.9. ISNI: 0000 0000 8646 3057 Department of Environmental Science and Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044 China. GRID: grid.411629.9. ISNI: 0000 0000 8646 3057"
Journal Title:		Front Environ Sci Eng
Year:		2021
Volume:		20210510
Issue:		3
Page Number:		48 -
DOI:		10.1007/s11783-021-1421-7
ISSN/ISBN:		2095-2201 (Print) 2095-221X (Electronic) 2095-221X (Linking)
Abstract:		"A novel three-stage integrated biofilter (TSIBF) composed of acidophilic bacteria reaction segment (ABRS), fungal reaction segment (FRS) and heterotrophic bacteria reaction segment (HBRS) was constructed for the treatment of odors and volatile organic compounds (VOCs)from municipal solid waste (MSW) comprehensive treatment plants. The performance, counts of predominant microorganisms, and bioaerosol emissions of a full-scale TSIBF system were studied. High and stable removal efficiencies of hydrogen sulfide, ammonia and VOCs could be achieved with the TSIBF system, and the emissions of culturable heterotrophic bacteria, fungi and acidophilic sulfur bacteria were relatively low. The removal efficiencies of different odors and VOCs, emissions of culturable microorganisms, and types of predominant microorganisms were different in the ABRS, FRS and HBRS due to the differences in reaction conditions and mass transfer in each segment. The emissions of bioaerosols from the TSIBF depended on the capture of microorganisms and their volatilization from the packing. The rational segmentation, filling of high-density packings and the accumulation of the predominant functional microorganisms in each segment enhanced the capture effect of the bioaerosols, thus reducing the emissions of microorganisms from the bioreactor"
Keywords:		Bioaerosol emissions Biofiltration Multi-stage biofilter Volatile organic compounds Waste gas treatment;
Notes:		"PubMed-not-MEDLINELiu, Jianwei Yue, Peng Zang, Nana Lu, Chen Chen, Xinyue eng China 2021/05/18 Front Environ Sci Eng. 2021; 15(3):48. doi: 10.1007/s11783-021-1421-7. Epub 2021 May 10"