摘要
将活性污泥培养及驯化后接种于生物滴滤塔中，挂膜启动后处理模拟氯苯废气（简称氯苯废气），考察了生物滴滤塔在挂膜启动阶段及稳定运行阶段的性能。实验结果表明：接种41d后生物滴滤塔成功挂膜，此时氯苯去除率稳定在90％以上；生物滴滤塔稳定运行阶段，随着进气中氯苯质量浓度由303．82mg／m3逐渐增至1489．05mg／m3，氯苯去除率从85．1％降至70．1％。处理氯苯废气适宜的工艺条件为：空塔停留时间超过45s，喷淋液流量31．8mL／min，氯苯负荷23．97～128．01g／（m3·h）。生物滴滤塔对喷淋液的酸性环境有较好的适应性，喷淋液pH的变化对氯苯去除率无显著影响。
The cultured and acclimatized activated sludge was inoculated into the biotrickling filter（BTF） to treat the simulated waste gas containing chlorobenzene. The BTF properties during start-up stage and steady running stage were studied. The expertimental results show that： The biofilm formation is accomplished after 41 d with more than 90% of chlorobenzene removal rate; In the steady running stage, when the inlet chlorobenzene mas concentration is increased from 303.82 mg/m3 to 1 489.05 mg/m3, the chlorobenzene removal rate is decreased from 85.1% to 70.1%. The suitable process conditions for chlorobenzene waste gas treatment are as follows： empty bed residence time over 45 s, spray liquid flow 31.8 mL/min and chlorobenzene load 23.97-128.01 g/（m3 ·h）. The BTF can well fit the cidic environment caused by spray liquid and the spray liquid pH has no significant effect on chlorobenzene removal rate.
出处
《化工环保》
CAS
CSCD
北大核心
2014年第3期201-205,共5页
Environmental Protection of Chemical Industry
基金
科技部科技型中小企业技术创新基金项目(09C26213203714)
江苏省环保科研课题(2012025)
江苏省新型环保重点验室开放课题(AE201119)
关键词
生物滴滤塔
氯苯废气
活性污泥
挂膜
进气负荷
喷淋液
空塔停留时间
biotrickling filter
chlorobenzene-containing waste gas
activated sludge
biofilm formation
inlet load
spray liquid
empty bed residence time
