| 摘要: |
| 针对疏水性挥发有机物（Volatile Organtic Compounds，VOCs）在生物处理过程中传质性能差的问题，剖析了疏水性VOCs在生物滴滤器（Biotrickling Filters,BTFs)中的传质理论和净化机制，综述了甲苯、苯乙烯等疏水性VOCs在不同BTFs中的传质特性;同时，指出添加表面活性剂、升级BTFs结构和工艺、优化影响传质的工艺参数等最新研究进展，将成为解决VOCs，特别是疏水性VOCs传质问题的有效手段;通过解决VOCs的传质问题，可以提高BTFs的工作性能，从而促进BTFs传质理论及核心技术的发展，推动该技术向应用型转化，解决多门类疏水性VOCs的无害化处置难题。 |
| 关键词: 生物滴滤法 传质 疏水性挥发性有机物 表面活性剂 |
| DOI： |
| 分类号: |
| 基金项目: |
|
| Research Progress in the Treatment of Hydrophobic VOCs by Biological Trickling Filter |
|
LI Yan-ping, JIANG Yan
|
|
Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
|
| Abstract: |
| Biotrickling filters (BTFs) for the treatment of hydrophobic volatile organic compounds (VOCs) have long been a research hotspot. For the removal of hydrophobic VOCs, mass transfer has become a core issue, which plays a decisive role in the treatment effect of BTFs. At present, there are few studies on the effect of mass transfer on the removal efficiency of VOCs and lack of systemicity. Aiming at the problem of poor mass transfer performance of hydrophobic VOCs in the biological treatment process, the mass transfer theory and purification mechanism of hydrophobic VOCs in BTFs are analyzed, and the mass transfer characteristics of hydrophobic VOCs such as toluene and styrene in different BTFs are reviewed. At the same time, it points out that the latest research progress such as adding surfactants, upgrading the structure and process of BTFs, and optimizing the process parameters that affect mass transfer will become effective means to solve the mass transfer problems of VOCs, especially hydrophobic VOCs. By solving the mass transfer problem of VOCs, the performance of BTFs can be improved, thereby promoting the development of BTFs mass transfer theory and core technology, promoting the transformation of this technology to application, and solving the problem of harmless disposal of multiple categories of hydrophobic VOCs. |
| Key words: biological tricklings mass transfer hydrophobic volatile organic compounds surfactants |
