Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, China.
College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
J Environ Sci (China). 2014 Dec 1;26(12):2500-7. doi: 10.1016/j.jes.2014.04.011. Epub 2014 Nov 3.
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.
采用两个生物滴滤塔（BTF），即 BTF1 和 BTF2，评估了 Tween-20 和 Zn(II) 对乙苯去除的影响。只有 BTF1 中添加了 Tween-20 和 Zn(II)。结果表明，在 EBRT 为 40 秒的情况下，当有机负荷从 64.8 增加到 189.0 g 乙苯/（m³·hr）时，BTF1 中的乙苯去除率从 94%降至 69%，BTF2 从 74%降至 54%。在恒定乙苯入口浓度下，EBRT（60-15 秒）的影响比在恒定有机负荷下，EBRT（30-10 秒）的影响更为显著。包装材料内的生物量积累率显著降低。
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