生物埴料塔降解低浓度苯废气传质-反应特征(一)  

The Feature of Mass Transfer - Biodegradation of Waste Gas Containing Benzene in Lower Concentration Suing Biological Tricking Filler

作　　者：邹华生[1] 陈焕钦[1] 

机构地区：[1]华南理工大学化工学院,广州510641

出　　处：《广东化工》2000年第2期17-20,共4页Guangdong Chemical Industry

摘　　要：对生物填料吸收塔不同时期的挂膜状况与填料塔操作压降的关系进行了实验测试,结果表明:填料层操作压降与填料表面挂膜状况有直接的关系,挂膜后期的操作压降是挂膜前期的15—20倍。本文对低浓度本废气的生物吸收机理进行了阐述和讨论。The relation between the state of membrane hanging on the packings and the pressure drop in biological tricking filler in different period of membrane hanging was studied by experiment . The result show that the pressure drop in biological tricking filler is an external indication of state of membrane hanging on the packings and that the value of pressure drop in late period of membrane hanging is about ten- fouty times that in earlier period. . The paper also studied the biodegradation mecha-nism and rate of benzene by theoretical analysis and experimental method whose result show that the biodegradation rate of ben-zene usually is hyperbolical function, but it can be reduced to first - order reaction according to that benzene is slightly soluble in water and its lower concentration in waste gas. Finally, the biodegradation rate constant was measured to be 0.038(l/s).

关 键 词：生物填料塔 苯 传质 降解 废气处理 

分 类 号：X783.01[环境科学与工程—环境工程]