Enhanced removal of ethylbenzene from gas streams in biotrickling filters by Tween-20 and Zn(Ⅱ)  

作　　者：Lu Wang Chunping Yang Yan Cheng Jian Huang Haining Yang Guangming Zeng Li Lu Shanying He 

机构地区：[1]Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, College of Environmental Science and Engineering, Zhejiang Gongshang University [2]College of Environmental Science and Engineering, Hunan University [3]Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education

出　　处：《Journal of Environmental Sciences》2014年第12期2500-2507,共8页环境科学学报（英文版）

基　　金：support by the National Natural Science Foundation of China(No.51278464,41301327)

摘　　要：The effects of Tween-20 and Zn（II） on ethylbenzene removal were evaluated using two biotrickling filters（BTFs）, BTF1 and BTF2. Only BTF1 was fed with Tween-20 and Zn（II）.Results show that ethylbenzene removal decreased from 94% to 69% for BTF1 and from 74%to 54% for BTF2 with increased organic loading from 64.8 to 189.0 g ethylbenzene/（m3·hr） at EBRT of 40 sec. The effect of EBRT（60–15 sec） at a constant ethylbenzene inlet concentration was more significant than that of EBRT（30–10 sec） at a constant organic loading. Biomass accumulation rate within packing media was reduced significantly.The effects of Tween-20 and Zn（II） on ethylbenzene removal were evaluated using two biotrickling filters（BTFs）, BTF1 and BTF2. Only BTF1 was fed with Tween-20 and Zn（II）.Results show that ethylbenzene removal decreased from 94% to 69% for BTF1 and from 74%to 54% for BTF2 with increased organic loading from 64.8 to 189.0 g ethylbenzene/（m3·hr） at EBRT of 40 sec. The effect of EBRT（60–15 sec） at a constant ethylbenzene inlet concentration was more significant than that of EBRT（30–10 sec） at a constant organic loading. Biomass accumulation rate within packing media was reduced significantly.

关 键 词：BIOFILM Biotrickling filter ETHYLBENZENE SURFACTANT ZINC 

分 类 号：X701[环境科学与工程—环境工程]