甲苯对生物滴滤塔微生物EPS的影响

doi:10.16085/j.issn.1000-6613.2017.04.046

化工进展 ›› 2017, Vol. 36 ›› Issue (04): 1506-1511.DOI: 10.16085/j.issn.1000-6613.2017.04.046

甲苯对生物滴滤塔微生物EPS的影响

贾艳萍, 姜成, 张兰河, 张海丰, 陈子成

东北电力大学化学工程学院, 吉林吉林 132012

收稿日期:2016-07-12 修回日期:2016-12-28 出版日期:2017-04-05 发布日期:2017-04-05
通讯作者: 张兰河,博士,教授,主要从事废水及废气的治理研究。E-mail:zhanglanhe@163.com。
作者简介:贾艳萍(1973-),女,博士,副教授,主要从事废水及废气的生物处理理论与工艺研究。E-mail:jiayanping1111@sina.com。
基金资助:
国家自然科学基金（51678119），吉林省科技发展计划（20150204052SF，20160101268JC，20150519020JH）及吉林省省校合作技术开发项目（吉工信科技2011-507）。

Effect of toluene on the EPS in the microorganisms of biotrickling filter

JIA Yanping, JIANG Cheng, ZHANG Lanhe, ZHANG Haifeng, CHEN Zicheng

School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, Jilin, China

Received:2016-07-12 Revised:2016-12-28 Online:2017-04-05 Published:2017-04-05

摘要/Abstract

摘要： 挥发性有机物（VOCs）来源广、种类多、危害大，为了提高VOCs的去除效率，采用生物滴滤塔对甲苯废气进行长期连续处理实验，考察了甲苯进气浓度对其去除率和生物滴滤塔内生物膜中胞外聚合物（extra-cellular polymeric substance，EPS）的影响。结果表明：当甲苯进气浓度为284mg/m³，喷淋水量为3.7~6.3L/h时，甲苯去除率高于95%，EPS浓度较高（339mg/L）；随着甲苯进气浓度的增加，EPS松散层（loosely bond extra-cellular polymeric substances，EPS-LB）中蛋白质和多糖浓度分别上升至峰值108.93mg/L和103.95mg/L后下降；EPS紧密结合层（tightly bond extra-cellular polymeric substances，EPS-TB）中蛋白质和多糖浓度的变化规律与EPS-LB相似。喷淋水量低于3L/h或高于7L/h均不利于生物滴滤塔去除甲苯气体，压力损失随着进气流量和EPS的增大而增大，实验末期生物滴滤塔的压力损失明显高于实验初期生物滴滤塔的压力损失，但塔内压力损失仍保持在低值。

关键词: 挥发性有机物, 生物膜, 活性, 蛋白质, 多糖

Abstract: Volatile organic compounds(VOCs) have the characteristics of wide sources,numerous varieties,and tremendous hazardous. To improve the removal efficiency of VOCs,an extensive toluene treatment experiment was continuously conducted using biotrickling filter. The effect of toluene inlet concentration on the removal efficiency and extra-cellular polymeric substance(EPS) of biofilm in the biotrickling filter were investigated. The results showed that the removal efficiency of toluene was higher than 95%,and the EPS was 339mg/L when the inlet concentration of toluene and the spray volume were 284mg/m³ and 3.7-6.3L/h,respectively. With the increase of inlet concentration,the protein concentrations and polysaccharide in the loosely bond extra-cellular polymeric substances (EPS-LB) increased to a peak values of 108.93mg/L and 103.95 mg/L,respectively before they dropped. The change of protein and polysaccharide concentration in the tightly bond extra-cellular polymeric substances(EPS-TB) was similar to that of EPS-LB. It was not conducive to remove toluene in the biotrickling filter when the spray water volume was less than 3L/h or more than 7L/h. Pressure drops increased with the increase of inlet flow and EPS,and they were significantly higher at the end of experiment than those at the beginning of the experiment. However,the pressure drops of the biotrickling filter were remaining at low value.

Key words: volatile organic compounds, biofilm, activity, protein, polysaccharide

中图分类号:

X701.7

贾艳萍, 姜成, 张兰河, 张海丰, 陈子成. 甲苯对生物滴滤塔微生物EPS的影响[J]. 化工进展, 2017, 36(04): 1506-1511.

JIA Yanping, JIANG Cheng, ZHANG Lanhe, ZHANG Haifeng, CHEN Zicheng. Effect of toluene on the EPS in the microorganisms of biotrickling filter[J]. Chemical Industry and Engineering Progress, 2017, 36(04): 1506-1511.

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甲苯对生物滴滤塔微生物EPS的影响

Effect of toluene on the EPS in the microorganisms of biotrickling filter

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