作　　者： ; ; ; ;

机构地区： 同济大学环境科学与工程学院污染控制与资源化研究国家重点实验室

出　　处： 《环境污染与防治》 2006年第9期671-675,共5页

摘　　要： 利用驯化污泥研究了邻氟苯胺、对氟苯胺、2,4-二氟苯胺的好氧生物降解性能。结果表明,3种氟苯胺的好氧生物降解性能从高到低依次为对氟苯胺、邻氟苯胺和2,4-二氟苯胺。降解动力学分析表明,除2,4-二氟苯胺在实验质量浓度8.56mg/L时为一级反应,其他为零级反应;且它们的降解规律都符合Monod方程;30℃、振荡速率140r/min为氟苯胺的最佳降解条件。同时研究了共基质条件下葡萄糖和苯胺对2,4-二氟苯胺的好氧降解的影响,葡萄糖的引入有促进作用,而苯胺只在一定浓度范围内有促进作用。氟苯胺的生产废水与生活污水合并处理以及多种组分混合废水处理是可行的。 The aerobic biodegradation of 2-fluoroaniline, 4-fluoroaniline, and 2,4 difluoroaniline by the acclimated activated sludge was studied. The biodegradation performance of 4-fluoroaniline was the best among the three kinds of fluoroanilines, and 2,4-difluoroaniline was the worst. The dynamic analysis showed that, the biodegradation of fluoroanilines was in accordance with zero order law except the 2,4-difluoroaniline on 8.56 mg/L, and their degradation all fit the Monod model. Thermodynamic Coefficient （Heat of formation） was found to be the most relative parameter with the maximum specific subs＇crate degradation rate. The optimal condition for degradation was 30℃, 140 r/min, while pH did no obvious effect on degradation. Glucose, as catabolism subs＇crate could accelerate the biodegradation of 2,4-difluoroaniline. Aniline under certain concentration also accelerated the biodegradation of 2,4-difluoroaniline, which indicated that there were both competition and eo-metabolization between aniline and 2,4-difluoroaniline. So, fluoroanilines containing wastewater and domestic sewage could be treated together in practice.

关 键 词： 氟苯胺 好氧降解 降解动力学 共基质降解

领　　域： [环境科学与工程]