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Removal of odors and VOCs in municipal solid waste comprehensive treatment plants using a novel three-stage integrated biofilter: Performance and bioaerosol emissions
Frontiers of Environmental Science & Engineering ( IF 6.1 ) Pub Date : 2021-05-10 , DOI: 10.1007/s11783-021-1421-7
Jianwei Liu 1, 2 , Peng Yue 1, 2 , Nana Zang 1, 2 , Chen Lu 1, 2 , Xinyue Chen 1, 2
Affiliation  

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.



中文翻译:

使用新型三级集成生物过滤器去除城市固体废物综合处理厂中的气味和挥发性有机化合物:性能和生物气溶胶排放

构建了一种由嗜酸菌反应段(ABRS)、真菌反应段(FRS)和异养菌反应段(HBRS)组成的新型三级集成生物滤池(TSIBF),用于处理市政异味和挥发性有机物(VOCs)。固体废物(MSW)综合处理厂。研究了全尺寸 TSIBF 系统的性能、主要微生物数量和生物气溶胶排放。TSIBF系统对硫化氢、氨气和VOCs的去除效率高且稳定,可培养的异养菌、真菌和嗜酸硫菌的排放量相对较低。ABRS对不同气味和VOCs的去除效率、可培养微生物的排放量、优势微生物的种类不同,FRS 和 HBRS 由于各段反应条件和传质的差异。TSIBF 的生物气溶胶排放取决于微生物的捕获及其从包装中的挥发。合理的分段、高密度填料的填充以及各分段中优势功能微生物的积累,增强了生物气溶胶的捕获效果,从而减少了生物反应器中微生物的排放。

更新日期:2021-05-11
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