高流量负荷下低浓度VOCs废气的生物法处理  

Bio-treatment of VOCs waste gases of low concentrations under high flow load.

作　　者：孙珮石[1] 郑顺生[1] 黄兵[1] 李章良[1] 李发荣 

机构地区：[1]昆明理工大学环境科学与工程学院,云南昆明650093 [2]昆明环境监测中心,云南昆明650228

出　　处：《中国环境科学》2004年第2期201-204,共4页China Environmental Science

基　　金：国家"863"计划资助项目(2002AA649050);国家自然科学基金资助项目(59878020);云南省自然科学基金资助项目(98B040M)

摘　　要：高流量负荷下生物膜填料塔净化低浓度甲苯废气的实验结果表明,当气体流量在0.8m3/h,入口气体甲苯浓度为105mg/m3,停留时间18.3s时,甲苯的净化效率可达到61.9%,出口气体甲苯浓度低于国家对现有企业的排放标准(≤60mg/m3).适宜的操作温度应控制在20～25℃之间,氮磷营养添加量的配比应控制为C:N:P=200:5:1.依据实验结果数据,对相关的机理问题进行了分析探讨.The test results of purifying the waste gas of low toluene concentration with bio-packing tower under high flow load showed that when gas flow was 0.8m3/h, toluene concentration was 105mg/m3 in inlet gas and residence time was 18.3s, the purification efficiency of toluene could reach 61.9%; and toluene concentration of outlet gas was below the existing national emission standard of enterprise (≤60mg/m3). The adoptive operation temperature should be controlled at 20~25℃. The added ratio of nitrogen-phosphorus nutrients should be controlled at C:N:P=200:5:1. Based on the test result data, the related mechanism problems were analyzed and investigated.

关 键 词：生物膜填料塔 高流量负荷 低浓度甲苯废气 废气净化 

分 类 号：X17[环境科学与工程—环境科学]