| 生物滴滤塔净化多组分废气的研究 |
| 摘要点击 4089 全文点击 2036 投稿时间：2012-09-11 修订日期：2012-10-23 |
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| 中文关键词 生物滴滤塔 H2S THF DCM 动力学 |
| 英文关键词 biotrickling filter H2S tetrahydrofuran (THF) dichloromethane (DCM) dynamics |
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| 中文摘要 |
| 通过生物滴滤塔(biotrickling filter, BTF)净化硫化氢(H2S)、四氢呋喃(THF)、二氯甲烷(DCM)混合废气, 研究其挂膜启动和稳定运行条件下的降解性能. 结果表明, 混合废气H2S、THF、DCM浓度分别为200、100和100 mg·m-3, 空床停留时间(empty bed retention time, EBRT)50~20 s的条件下, H2S和THF的去除率分别能够维持在99%和60%左右, 而DCM的去除率随EBRT的缩短从90%逐渐降低至37%左右. 利用Michaelis-Menten动力学模型分析得到, 理论降解效果为H2S>THF>DCM. |
| 英文摘要 |
| A biotrickling filter (BTF) was designed for treating mixed waste gases, which contained hydrogen sulfide (H2S), tetrahydrofuran (THF) and dichloromethane (DCM) at the start-up and steady states. The removal efficiency of H2S and DCM could maintain about 99% and 60%, respectively, and the removal efficiency of DCM was reduced from 90% to 37% with the shortening empty bed retention time (EBRT) form 50 to 20 seconds when the inlet concentrations were 200, 100, 100 mg·m-3 of H2S, THF, DCM, respectively. In the theoretical study, the biodegradation efficiency of contaminants was H2S>THF>DCM by analyzing the Michaelis-Menten Dynamic model. |
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