在混合生物反应器和生物滤池集成系统中净化 TCE 和 PCE 污染的空气。
Air purification from TCE and PCE contamination in a hybrid bioreactors and biofilter integrated system.
机构信息
Warsaw University of Technology, Faculty of Environmental Engineering, Biology Division, Nowowiejska 20, 00-653 Warsaw, Poland.
Warsaw University of Technology, Faculty of Environmental Engineering, Biology Division, Nowowiejska 20, 00-653 Warsaw, Poland.
出版信息
J Hazard Mater. 2014 Jan 15;264:363-9. doi: 10.1016/j.jhazmat.2013.11.013. Epub 2013 Nov 13.
A two-stage waste air treatment system, consisting of hybrid bioreactors (modified bioscrubbers) and a biofilter, was used to treat waste air containing chlorinated ethenes - trichloroethylene (TCE) and tetrachloroethylene (PCE). The bioreactor was operated with loadings in the range 0.46-5.50gm(-3)h(-1) for TCE and 2.16-9.02gm(-3)h(-1) for PCE. The biofilter loadings were in the range 0.1-0.97gm(-3)h(-1) for TCE and 0.2-2.12gm(-3)h(-1) for PCE. Under low pollutant loadings, the efficiency of TCE elimination was 23-25% in the bioreactor and 54-70% in the biofilter. The efficiency of PCE elimination was 44-60% in the bioreactor and 50-75% in the biofilter. The best results for the bioreactor were observed one week after the pollutant loading was increased. However, the process did not stabilize. In the next seven days contaminant removal efficiency, enzymatic activity and biomass content were all diminished.
采用两段式废气处理系统，由混合生物反应器（改良生物洗涤器）和生物过滤器组成，用于处理含氯乙稀 - 三氯乙烯（TCE）和四氯乙烯（PCE）的废气。生物反应器的负荷范围为 TCE 0.46-5.50gm(-3)h(-1)，PCE 2.16-9.02gm(-3)h(-1)。生物过滤器的负荷范围为 TCE 0.1-0.97gm(-3)h(-1)，PCE 0.2-2.12gm(-3)h(-1)。在低污染物负荷下，生物反应器中 TCE 的去除效率为 23-25%，生物过滤器中 PCE 的去除效率为 54-70%。生物反应器中 PCE 的去除效率为 44-60%，生物过滤器中 PCE 的去除效率为 50-75%。在增加污染物负荷一周后，生物反应器观察到最佳效果。然而，该过程并未稳定。在接下来的七天中，污染物去除效率、酶活性和生物量含量均降低。
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