喹啉降解菌Ochrobactrum sp.的好氧降解特性及其在焦化廢水中的生物強化作用
發(fā)布時間：2019-04-28 09:31
【摘要】：喹啉是焦化廢水中的難降解有機物之一,以喹啉為唯一碳氮源從某焦化廢水處理廠活性污泥中分離出1株喹啉降解菌KDQ3,16S r DNA序列分析表明KDQ3為Ochrobactrum sp.,其對喹啉降解的最適條件為37℃和初始pH 7.0~8.0,喹啉降解動力學符合Haldane模型.KDQ3能在10.4 mg·L~(-1)Cr(Ⅵ)存在時降解200 mg·L~(-1)喹啉.此外,KDQ3能在實際好氧池焦化廢水環(huán)境中降解喹啉和提高COD去除率,說明該菌具有生物強化焦化廢水的應用潛力.
[Abstract]:Quinoline is one of the refractory organic compounds in coking wastewater. Using quinoline as the only carbon and nitrogen source, a strain of quinoline degrading bacterium KDQ3,16S r DNA was isolated from activated sludge of a coking wastewater treatment plant. The sequence analysis showed that KDQ3 was Ochrobactrum sp.,. The optimum condition for the degradation of quinoline is 37 鈩，
本文編號：2467526
[Abstract]:Quinoline is one of the refractory organic compounds in coking wastewater. Using quinoline as the only carbon and nitrogen source, a strain of quinoline degrading bacterium KDQ3,16S r DNA was isolated from activated sludge of a coking wastewater treatment plant. The sequence analysis showed that KDQ3 was Ochrobactrum sp.,. The optimum condition for the degradation of quinoline is 37 鈩，
本文編號：2467526
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