采用错流式生物滴滤反应器净化甲苯废气

张书景; 李坚; 李依丽; 金毓峑; 张京

采用错流式生物滴滤反应器净化甲苯废气

北京工业大学环境与能源工程学院, 北京 100124

基金项目:

北京市自然科学基金资助项目(8052004)

北京工业大学青年基金资助项目(97005013200402).

详细信息

作者简介:
张书景(1979—),女,河北正定人,博士生.

中图分类号: X701.7
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出版历程
- 收稿日期: 2007-06-09
- 网络出版日期: 2022-12-09

Removal of Toluene Waste Gas by a Cross-flow Trickling Biofilter

College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

摘要

摘要: 为了解决生物滴滤塔有效降解空间低,压降高,易堵塞等问题,采用错流式生物滴滤反应器,以单一底物甲苯驯化的纯菌种恶臭假单胞菌为菌源接种,陶粒为填料,处理含甲苯废气.研究了反应器的挂膜启动、不同停留时间、不同体积负荷以及营养液温度对反应器甲苯处理能力的影响.反应器挂膜启动仅需要7d,挂膜成功后,停留时间为144、72、48和36s时,最大体积去除负荷为276.62g/(m³·h),营养液最佳温度为28~34℃.结果表明,采用错流式生物滴滤反应器净化甲苯废气是一种可行有效的的工艺,设备结构和操作方式的改变提高了生物降解的有效空间,并可以有效调节反应器内的湿度,适于大气量挥发性有机废气的治理;停留时间的变化对反应器处理性能的影响较小,且可以迅速恢复;控制营养液温度可以调整反应器微生物生存的环境温度,从而提高反应器去除效率.
- 错流 /
- 生物滴滤 /
- 甲苯 /
- 恶臭假单胞菌
Abstract: In this paper,the cross-flow trickling biofilter was used to remove toluene from an artificial waste gas in order to resolve problems of the columned trickling biofilter,such as low effective zone,high pressure and easily clogging.The biofilter was inoculated with Pseudomonas Pudida and packed with biological ceramic pellets.The start-up process and the performance of the biofilter under different residence time and volumetric loading were studied.The effects of the temperature of nutrients on the removal capacity of the biofilter were also investigated.7 days were needed to start the biofilter.Complete toluene removal could be achieved when the residence time were 144s,72s,48s and 36 s and the maximum volumetric removal loading of 276.62g·m^-3·h^-1was achieved.The optimum temperature of nutrients was in the range of 28℃to 34℃.The results indicate that the cross-flow trickling biofilter inoculated with Pseudomonas Pudida is feasible and an effective treatment process to treat toluene waste gas.The special structure and operation of the cross- flow trickling biofilter can enhance the effective zone of the reactor and adjust the humidity of the reactor which is suitable to treat large volumes of volatile organic compounds.The change of residence time has little influence on the removal capacity of the biofilter which can be recovered quickly.To control the temperature of the nutrients we can adjust the environmental temperature of the microorganisms which could improve the removal efficiency effectively.
- cross-flow /
- bio-trickling /
- toluene /
- Pseudomonas putida

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参考文献(15)

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