工业废气中甲苯的生物降解研究  

BIODEGRADATION OF TOLUENE IN INDUSTRIAL WASTE GASES

作　　者：孙珮石[1] 黄若华[1] 陈茂生[1] 张玲琪[1] 

机构地区：[1]昆明理工大学环境工程及化学工程系,云南大学生物系

出　　处：《云南环境科学》1996年第3期14-17,共4页Yunnan Environmental Science

基　　金：国家自然科学基金;云南省应用基础研究基金;中国有色金属工业总公司留学回国人员科研资助;国家教委留学回国人员科研资助;云南省高等学校大型精密仪器设备分析测试基金

摘　　要：采用生物膜填料塔进行净化低浓度甲苯废气的研究结果表明，构成生物膜的假单胞菌属中的短杆菌对废气中甲苯有很强的生化降解能力，每升体积的生物膜填料对甲苯的生化去除量最大可达１０４．４ｍｇ／ｈ，且当入口气体甲苯浓度约低于２．０ｍｇ／Ｌ时，单塔净化效率可保持在８０％以上。反应级数的转换约在其液相浓度为０．８—１．２ｍｇ／Ｌ（相当于气相浓度约１．７—２．１ｍｇ／Ｌ）时发生。ln the experimental research of purifying the waste gas containing Toluene in low concentration by using an enlarged biological trickling filter with biofilm packing, the biodegradation of Toluene in industrial waste gases was investigated.The bacillar bacteria (Pseudomonas sp),forming.the biofilm on surface of packing in the column,had a strong ability of biodegrading Toluene in waste gas.The maximum biological elimination of Toluene in waste gas could come up to 104. 4mg per hour per litre packing with biofilm. When the concentration of Toluene in inlet gas was lower than 2.0 mg/L,for the biofilm packing of 1.0 m high,the purification efficiency of Toluene could be maintained above 80%.when when the concentration of Toluene in liquid was in 0. 8-1.2mg/L (corresponding to inlet gas concentration l.7-2.1mg/L),the transition from first order to zero order surface reaction occurred.

关 键 词：生物膜填料塔 甲苯废气 生化降解 假单胞菌属 

分 类 号：X511.06[环境科学与工程—环境工程]