高效降氰菌群的构建及降解特性

曾虹燕; 姜和; 雷光辉; 刘庭亮

环境工程学报

高效降氰菌群的构建及降解特性

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曾虹燕, 姜和, 雷光辉, 刘庭亮. 高效降氰菌群的构建及降解特性[J]. 环境工程学报, 2008, 2(4): 487-492.

引用本文:

曾虹燕, 姜和, 雷光辉, 刘庭亮. 高效降氰菌群的构建及降解特性[J]. 环境工程学报, 2008, 2(4): 487-492.

Zeng Hongyan, Jiang He, Lei Guanghui, Liu Tingliang. Screening and characteristics of microbial florawith high effective cyanide degradation[J]. Chinese Journal of Environmental Engineering, 2008, 2(4): 487-492.

Citation:

Zeng Hongyan, Jiang He, Lei Guanghui, Liu Tingliang. Screening and characteristics of microbial florawith high effective cyanide degradation[J]. Chinese Journal of Environmental Engineering, 2008, 2(4): 487-492.

高效降氰菌群的构建及降解特性

1.
湘潭大学化工学院生物技术研究所，湘潭 411105
2.
爱斯特（成都）医药技术有限公司, 成都 610023
基金项目:
湘潭大学2007年学生创新基金
中图分类号: X703.1

Screening and characteristics of microbial florawith high effective cyanide degradation

1.
Biotechnology Institute,College of Chemical Engineering,Xiangtan University,Xiangtan 411105
2.
AstsTech (Chengdu) Pharmaceutical Co. Ltd., Chengdu 610023
Fund Project:

摘要: 从筛选到的降氰菌中构建出了优于单一菌种降氰活性的复配菌群CNR。研究了该复合菌群的生长条件, 探讨了温度、pH、接种量、氰化物初始浓度及降解时间等因素对CNR降氰的影响。研究表明，复配菌群CNR适应碱性环境, 可降解高浓度氰化物（CN-11 000 mg/L），并对金属氰化物和脂肪族腈具有极强的降解能力。在有氧、pH 11、33 ℃和接种量10％条件下，含CN-11 000 mg/L培养液经60 h降解后，CN-1浓度降为0.49 mg/L，降氰率高达99.96％，达到国家一级排放标准。
- 复合菌群 /
- 酵母 /
- 降解 /
- 氰化物 /
- 筛选分离
Abstract: Microbial flora with highlyeffective cyanidedegradation was obtained from activated sludge, name as CNR. The optimum conditions of growth of the CNR were confirmed. The CNR cyanidedegrading conditions such as temperature, pH value, initial cyanide concentration, inoculum and degradation time were studied. The results show that the CNR was suitable for alkaline solution with high CN-1concentration (CN-11 000 mg/L. Its cyanidedegrading potential is strong for metal cyanides and aliphatic nitrile. After 60 h degradation by CNR, the CN-1concentration was reduced from 1 000 mg/L to 0.49 mg/L under aerobic condition, pH 11, 33 ℃, inoculum 10%, the cyanide-degradable rate was 99.96％. It meets the requirement of first grade discharge standard in our country.
- microbial flora /
- yeast /
- degradation /
- cyanide /
- screen and isolation

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曾虹燕, 姜和, 雷光辉, 刘庭亮. 高效降氰菌群的构建及降解特性[J]. 环境工程学报, 2008, 2(4): 487-492.

引用本文:

曾虹燕, 姜和, 雷光辉, 刘庭亮. 高效降氰菌群的构建及降解特性[J]. 环境工程学报, 2008, 2(4): 487-492.

Citation:

高效降氰菌群的构建及降解特性

1. 湘潭大学化工学院生物技术研究所，湘潭 411105
2. 爱斯特（成都）医药技术有限公司, 成都 610023

收稿日期: 2007-11-11

基金项目:

湘潭大学2007年学生创新基金

关键词:

复合菌群 /
酵母 /
降解 /
氰化物 /
筛选分离

摘要: 从筛选到的降氰菌中构建出了优于单一菌种降氰活性的复配菌群CNR。研究了该复合菌群的生长条件, 探讨了温度、pH、接种量、氰化物初始浓度及降解时间等因素对CNR降氰的影响。研究表明，复配菌群CNR适应碱性环境, 可降解高浓度氰化物（CN-11 000 mg/L），并对金属氰化物和脂肪族腈具有极强的降解能力。在有氧、pH 11、33 ℃和接种量10％条件下，含CN-11 000 mg/L培养液经60 h降解后，CN-1浓度降为0.49 mg/L，降氰率高达99.96％，达到国家一级排放标准。

English Abstract

Screening and characteristics of microbial florawith high effective cyanide degradation

1. Biotechnology Institute,College of Chemical Engineering,Xiangtan University,Xiangtan 411105
2. AstsTech (Chengdu) Pharmaceutical Co. Ltd., Chengdu 610023

Received Date: 2007-11-11

Fund Project:

Keywords:

Abstract: Microbial flora with highlyeffective cyanidedegradation was obtained from activated sludge, name as CNR. The optimum conditions of growth of the CNR were confirmed. The CNR cyanidedegrading conditions such as temperature, pH value, initial cyanide concentration, inoculum and degradation time were studied. The results show that the CNR was suitable for alkaline solution with high CN-1concentration (CN-11 000 mg/L. Its cyanidedegrading potential is strong for metal cyanides and aliphatic nitrile. After 60 h degradation by CNR, the CN-1concentration was reduced from 1 000 mg/L to 0.49 mg/L under aerobic condition, pH 11, 33 ℃, inoculum 10%, the cyanide-degradable rate was 99.96％. It meets the requirement of first grade discharge standard in our country.

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高效降氰菌群的构建及降解特性

Screening and characteristics of microbial florawith high effective cyanide degradation

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高效降氰菌群的构建及降解特性

English Abstract

Screening and characteristics of microbial florawith high effective cyanide degradation

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