喹啉降解菌Rhodococcus sp.的降解特性与生物强化作用

发布时间：2018-01-06 01:26

本文关键词：喹啉降解菌Rhodococcus sp.的降解特性与生物强化作用　出处：《中国环境科学》2017年06期 　论文类型：期刊论文

【摘要】：以喹啉为唯一碳氮源从某焦化废水处理厂活性污泥中筛选出一株喹啉降解菌菌株红球菌(Rhodococcus sp.)KDQ2,其在24h内能将400mg/L喹啉降解96%,降解的最适条件为37℃和pH6~9,降解动力学符合Haldane方程.KDQ2能利用吡啶,但不能利用苯酚;在喹啉、吡啶和苯酚共存条件下,150mg/L吡啶和400mg/L苯酚不影响150mg/L喹啉在1d时的降解效率.KDQ2能适应含有高浓度苯酚、吡啶和喹啉等污染物的焦化废水环境条件,可以与活性污泥中的微生物共存,提高实际焦化废水中喹啉和TOC的去除能力.
[Abstract]:With quinoline as sole source of carbon and nitrogen from coking wastewater treatment plant of quinoline degrading bacterium, Rhodococcus strains were screened from activated sludge plant (Rhodococcus sp.) KDQ2, the 400mg/L 96% 24h in quinoline degradation can be the optimum conditions for the degradation of pH6~9 and 37 DEG C, the degradation kinetics conformed to Haldane equation.KDQ2 can use pyridine, but cannot use phenol; in quinoline, pyridine and phenol under the condition of coexistence of 150mg/L and 400mg/L, pyridine phenol does not affect the degradation efficiency of.KDQ2 150mg/L in 1D can adapt to quinoline containing high concentrations of phenol, pyridine and quinoline coking wastewater pollutants such as environmental conditions, can coexist and microorganisms in activated sludge, improve the ability of removing quinoline and TOC the actual coking wastewater.

【作者单位】：中国矿业大学(北京)化学与环境工程学院;山西省霍州市第二中学;中国科学院大学生命科学学院;
【基金】：国家自然科学基金资助项目(31370281,U1632111) 中央高校基本科研费基金资助项目(2010YH05)
【分类号】：X172;X784
【正文快照】： at a 200mg/L initial concentration within 24h,and its degradation kinetics could be described with Haldane’s model.KDQ2 was shown to be able to also utilize pyridine but not phenol.The removal of quinoline(150mg/L)was not inhibitedby the presence of pyr

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