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[1]孙纪全** 徐 莲 陈福明 吴晓磊**.Diaphorobacter sp. J5-51降解酚类污染物的特性[J].应用与环境生物学报,2016,22(03):393-396.[doi:10.3724/SP.J.1145.2015.11040]
 SUN Jiquan,XU Lian,CHEN Fuming & WU Xiaolei.Degradation Characteristics of Phenolics by Diaphorobacter sp. Strain J5-51*[J].Chinese Journal of Applied & Environmental Biology,2016,22(03):393-396.[doi:10.3724/SP.J.1145.2015.11040]
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Diaphorobacter sp. J5-51降解酚类污染物的特性()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
22卷
期数:
2016年03期
页码:
393-396
栏目:
研究论文
出版日期:
2016-06-25

文章信息/Info

Title:
Degradation Characteristics of Phenolics by Diaphorobacter sp. Strain J5-51*
作者:
孙纪全123** 徐 莲123 陈福明3 吴晓磊12**
1北京大学工学院 北京 100871 2北京大学包头创新研究院 包头 014030 3深圳清华大学研究院,深圳市工业应用分离技术重点实验室 深圳 518057
Author(s):
SUN Jiquan123 XU Lian123 CHEN Fuming3 & WU Xiaolei12
1College of Engineering, Peking University, Beijing 100871, China 2Institute of Innovation (Batou), Peking University, Batou, 014030, China 3Research Institute of Tsinghua University in Shenzhen, Shenzhen Key Laboratory. of Separation Technology, Shenzhen 518057, China
关键词:
对氯酚生物降解Diaphorobacter细胞固定化
Keywords:
4-chlorophenol biodegradation Diaphorobacter cell immobilization
分类号:
X172
DOI:
10.3724/SP.J.1145.2015.11040
摘要:
为强化酚污染的生物治理,提高酚类污染物的去除效率,采用单因素实验方法研究1株Diaphorobacter细菌(命名为J5-51)降解酚类物质的特性. 结果显示,菌株J5-51在pH为6.0-9.0、温度为25-35 ℃的情况下均能较好地降解对氯酚;添加0.2 mmol/L的Ca2+能够促进、而添加相同浓度的Co2+和Ni2+则抑制对氯酚的降解;菌株降解对氯酚的速度与对氯酚的初始浓度呈负相关关系;除对氯酚外,菌株还能降解吡啶、苯酚、2-甲酚、3-甲酚和4-甲酚. 在优化的条件下,菌株可在72 h内完全降解焦化废水中约400 mg/L的苯酚和100 mg/L的甲酚;同时,对菌株J5-51进行固定化有利于其降解酚类化合物. 综上认为,菌株J5-51在处理酚类化合物共污染环境的生物修复中具有一定的应用潜力. (图6 参13)
Abstract:
Degradation of 4-chlorophenol by Diaphorobacter sp. J5-51 was studied to understand its potential in application for treating phenolic pollutants. In addition to 4-chlorophenol, strain J5-51 could degrade phenol, pyridine, and three kinds of cresols in mineral salt medium. The results showed the optimal conditions for strain J5-51 to degrade 4-chlorophenol as pH 6.0–9.0 and 30–35 °C. Addition of Ni2+ and Co2+ (0.2 mmol/L, final concentration) inhibited the strain’s degradation of 4-chlorophenol, while Ca2+ (0.2 mmol/L, final concentration) could conversely enhance the degradation. The degradation rate of chlorophenol was negatively correlated with its initial concentration in mineral salt medium. From a mixture of phenolics, approximately 400 mg/L phenol and 100 mg/L cresols could be completely degraded within 72 hours. Finally, immobilization of strain J5-51 could enhance the degradation rate of phenolics.

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更新日期/Last Update: 2016-06-25