A novel integrated UV-biofilter system to treat high concentration of gaseous chlorobenzene

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2008,（17）
• 页码范围: 2712-2716
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11434-008-0367-5

摘要

A novel integrated UV-biofilter system using UV reactor as the pretreatment process was setup to treat high concentration of gaseous volatile organic compounds (VOCs). Another control biofilter without the UV pretreatment was also established to compare the performance of the two systems. Chloro-benzene was selected as a model compound. The two systems were operated in parallel under different the integrated system could eliminate chlorobenzene completely (100% removal efficiency) at the inlet ter. Also the elimination capacity for the organic carbon of the integrated system was much higher than that of the control biofilter. On the basis of intermediates analysis by lon Chromatography and Gas Chromatography-Mass Spectrometry, the UV pretreatment has been proven to be able to enhance the performance of the following biofilter by transferring the recalcitrant target to some more biodegrad-able and soluble organic products (such as formic acid and chlorophenol). Furthermore, the produced ozone, a harmful by-product from UV photo-degradation, could be easily eliminated by the following biofiltration process.