【摘要】 针对印刷废气浓度低、间歇释放等特点,本试验采用生物滴滤器示范装置（■300×H2000mm）在实验室进行净化模拟试验,并将其应用于印刷厂现场,示范装置在实验室连续运行中性能稳定,通过考察工作日连续运行和周末停运两种工况下的恢复性能,建立了工作日白天运行、夜间停运的工况运行模式,双休日或节假日白天开启养护系统10h 的运行模式,现场运行48d 试验表明:气量范围10～15m³·h^-1、TVOC 入口浓度450～1000mg·m^-3,TVOC 平均去除率保持在80%以上,其中甲苯去除效率在95%以上.本示范装置的成功运行,为我国处理工业低浓度有机废气提供了一项有效的实用新技术。更多还原

【Abstract】 Biotrickling filter processes used to treat organic waste-gas emitted by printing is always subjected to low concentration,transient loading conditions.In the study presented here,a simulated trial was first carried on in a pilot-plant（■300×H2000 mm）in laboratory, and then in a printery.The results in laboratory show that the organic waste-gas stream can be biodegraded efficiently in the biotrickling filer,steady elimination capacities can be obtained. Biofilter performance was evaluated for two loading conditions to simulate processes generating contaminated gases only during daytime operation,and daytime operation with weekend shut- down periods.Results indicate that biofilter can be effective for treating organic waste-gas emitted by printing during daytime operation,and during weekend shutdown periods with or- ganic waste-gas 10 h/d added.The experiment in the printery lasts for 48 d.When the inlet gas flow and the concentration are at the range of 10 to 15 m³·h^-1and 450 to 1000 mg·m^-3 respectively,the elimination efficiency of TVOC is greater than 80 %,while the elimination ef- ficiency of toluene is greater than 95%.The good performance of the pilot-plant implies that this new-style technique can be applied to treat industrial organic waste-gas efficiently.更多还原