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	硝基苯污染底质的微生物强化修复研究
	李轶 ; 胡洪营 ; 于茵 ; 李鑫 ; LI Yi ; HU Hong-ying ; YU Yin ; LI Xin
	2010-05-13 ; 2010-05-13
关键词	硝基苯 污染底质 生物修复 恶臭假单胞菌 nitrobenzene polluted sediments bioremediation Pseudomonas putida X522
其他题名	Bioremediation of Nitrobenzene-polluted Sediments Using Pseudomonas putida
中文摘要	采用从污染底质中分离出的可降解硝基苯的恶臭假单胞菌,对硝基苯污染底质的微生物强化修复进行了实验室和现场实验研究.该细菌在未灭菌的河水中可以硝基苯为唯一碳源生长,低温条件下(5℃),对于100 g的含有11.8 mg/kg硝基苯的污染底质,投加2 mL(107cells/mL)菌液可以在4 d完全降解底质中的硝基苯,实现对污染底质的强化修复.该过程中无须投加额外的氮、磷及其他的营养盐,说明污染底质中含有足够的细菌生长所需的营养物质.在使用河水和底质的现场实验中,当底质和河水中的硝基苯初始浓度在7~8 mg/kg5、0~61 mg/L之间时,投加硝基苯降解菌可使底质和河水中硝基苯的降解时间缩短了40 h以上,河水中的硝基苯先于底质中的硝基苯被细菌所降解.; Bioremediation of nitrobenzene-polluted sediments was studied through lab-scale and in situ experiments.The polluted sediments were remediated through the addition of bacterial separated from the sediments,even at a low temperature of 5℃.Nitrobenzene at a concentration of 11.8 (mg/kg) was biodegraded within 4 d with the addition of 2 mL cell solution(10~7(cells/mL).) No extra nutrients were needed for the bioremediation process,showing that enough nutrients existed in the sediments.For the in situ bioremediation experiment,the initial nitrobenzene concentrations at solution and sediments were 50-61(mg/L) and 7-8(mg/L) respectively.The remediation process was also enhanced through cell addition. The above mentioned nitrobenzene was biodegraded within 48 h,compared with 96 h without cells presence.Nitrobenzene in solution was removed preferentially than those in sediments.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/30697]
专题	清华大学
推荐引用方式 GB/T 7714	李轶,胡洪营,于茵,等. 硝基苯污染底质的微生物强化修复研究[J],2010, 2010.
APA	李轶.,胡洪营.,于茵.,李鑫.,LI Yi.,...&LI Xin.(2010).硝基苯污染底质的微生物强化修复研究..
MLA	李轶,et al."硝基苯污染底质的微生物强化修复研究".(2010).

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