DEHP降解菌对硝化型曝气生物滤池的影响  

The effect of Di-(2-ethylhexyl)phthalate degradation bacteria on a nitrification biological aerated filter

作　　者：柳学速 曹相生[1] 孟雪征[1] 

机构地区：[1]北京工业大学建筑工程学院水质科学与水环境恢复工程北京市重点实验室,北京100124

出　　处：《黑龙江水利》2015年第9期5-10,共6页

基　　金：国家自然基金项目(51178006);北京市属高等学校高层次人才引进与培养计划项目(CIT&TCD201304055)

摘　　要：为探究邻苯二甲酸二(2-乙基己基)酯(DEHP)降解菌对硝化反应的影响及其去除DEHP的规律,采用两座下向流硝化型曝气生物滤池(BAF)进行对比试验。两座滤池进水DEHP浓度约为100μg/L,其中一座进水中投加能高效降解DEHP的菌液,另一座不投加该菌液作为空白对照。投菌量为V(菌液)∶V(污水)=1∶1000的滤池与不投加菌液的滤池进行30d的对比试验,结果发现投加菌液的滤池与不投加菌液的滤池,氨氮平均去除率均为96.98%,出水亚氮平均积累率分别为81.97%、93.02%,硝氮平均硝化率分别为18.03%、6.98%,DEHP的平均去除率分别为90.59%、88.10%。BAF运行过程中,DEHP降解菌的投加降低了BAF出水亚氮的积累,提高了DEHP的去除率,但对氨氮的去除没有产生影响。To explore the effect of Di-（2-ethylhexyl） phthalate degradation bacteria on a nitrification biological aerated filter and its removal of DEHP discipline, two down-flow type nitrification biological aerated filters were used. The concentration of the DEHP in the inflo were about 100μg/L. In one of the filter was DEHP degradation bacteria added, while in the other one wasn＇t. The volume of the bacteria ： the volume of the waste water= 1 ： 1000. The both filters were operated for 30 days. The result is, the average ammonia nitrogen removal efficiency in filter with or without DEHP degradation bacteria are both reached 96.98%. the average nitrite accumulation ratio in effluent are 81.97%, 93.02% respectively. and the average nitrate removal ratio in effluent are 18.03%, 6.98% respectively, the average DEHP removal ratio are 90. 59%, 88. 10% respectively. In the BAF, adding of DEHP degradation bacteria reduces the accumulation of nitrite, improve the removal of DEHP. But has no effect on ammonia removal.

关 键 词：硝化型曝气生物滤池 邻苯二甲酸二(2-乙基己基)酯降解菌 硝化 亚氮积累 

分 类 号：X703[环境科学与工程—环境工程]