微生物絮凝剂捕集Cu(Ⅱ)的响应面优化及机理研究

高万超; 杨朝晖; 黄兢; 邓久华; 徐海音; 谢华明

环境工程学报

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高万超, 杨朝晖, 黄兢, 邓久华, 徐海音, 谢华明. 微生物絮凝剂捕集Cu(Ⅱ)的响应面优化及机理研究[J]. 环境工程学报, 2011, 5(11): 2411-2416.

引用本文:

高万超, 杨朝晖, 黄兢, 邓久华, 徐海音, 谢华明. 微生物絮凝剂捕集Cu(Ⅱ)的响应面优化及机理研究[J]. 环境工程学报, 2011, 5(11): 2411-2416.

Gao Wanchao, Yang Zhaohui, Huang Jing, Deng Jiuhua, Xu Haiyin, Xie Huaming. Optimization of response surface and the mechanism study of microbial flocculants on capturing Cu (Ⅱ)[J]. Chinese Journal of Environmental Engineering, 2011, 5(11): 2411-2416.

Citation:

Gao Wanchao, Yang Zhaohui, Huang Jing, Deng Jiuhua, Xu Haiyin, Xie Huaming. Optimization of response surface and the mechanism study of microbial flocculants on capturing Cu (Ⅱ)[J]. Chinese Journal of Environmental Engineering, 2011, 5(11): 2411-2416.

微生物絮凝剂捕集Cu(Ⅱ)的响应面优化及机理研究

1.
湖南大学环境科学与工程学院，长沙 410082； 2.环境生物与控制教育部重点实验室(湖南大学)，长沙 410082
基金项目:
国家自然科学基金资助项目(30970105，51078131)

长沙科技计划重点资助项目(K0802151-31)

国家“水体污染控制与治理”科技重大专项(2009ZX07212-001-02)
中图分类号: X703.1

Optimization of response surface and the mechanism study of microbial flocculants on capturing Cu (Ⅱ)

1.
College of Environmental Science and Engineering，Hunan University，Changsha 410082，China；2. Key Laboratory of Environmental Biology and Pollution Control (Hunan University)，Ministry of Education，Changsha 410082，China
Fund Project:

摘要: 采用BBD(box-behnken design) 法对微生物絮凝剂MBFGA1捕集25 mg/L含铜模拟废水中Cu(Ⅱ)的过程进行了优化，设定5个影响因子分别为pH值、MBFGA1投加量、CaCl2投加量、搅拌速度和搅拌时间，响应值为Cu(Ⅱ)的去除率，并利用傅里叶红外光谱仪对捕集机理进行了研究。结果表明，影响MBFGA1捕集Cu(Ⅱ)的显著性因素为MBFGA1投加量和搅拌速度；当pH为7.23，MBFGA1投加量为24.75 mg/L，CaCl2投加量为29
- 微生物絮凝剂 /
- 捕集 /
- Cu(II) /
- 响应面优化 /
- 捕集机理
Abstract: In this study，the box-behnken desigh (BBD) method was employed to investigate the removal of Cu(Ⅱ) by microbial flocculants MBFGA1 from simulation liquid waste. With the response target of Cu(Ⅱ) removal，five impact factors including pH，MBFGA1 concentration，CaCl2 concentration，stirring speed and time were examined and the initial concentration of Cu(Ⅱ) simulation liquid waste was 25 mg/L. The mechanism of capturing process was also studied through fourier transform infrared spectroscopy (FTIR). Results indicated that the capturing ability of Cu(Ⅱ) was greatly influenced by the concentration of MBFGA1 and the stirring speed. The optimal flocculating conditions were pH 7.23，MBFGA1 24.75 mg/L，CaCl2 29.25 mg/L，stirring speed 130.90 r/min and stirring time 47.79 s. Under these conditions the actual measurement of Cu (Ⅱ) was 0.08 mg/L and removal rate was more than 99.68%，capture capacity was 303.43 mg/g. Results of FTIR analysis demonstrated that hydroxyl，carbonyl and acetyl in MBFGA1 were responsible for capturing ability. Based on the results，the MBFGA1 was regarded as a potential absorbent for the removal of heavy metals.
- coagulation /
- dissolved air flotation /
- trihalomethanes formation potential /
- molecular weight distribution /
- floc form

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高万超, 杨朝晖, 黄兢, 邓久华, 徐海音, 谢华明. 微生物絮凝剂捕集Cu(Ⅱ)的响应面优化及机理研究[J]. 环境工程学报, 2011, 5(11): 2411-2416.

引用本文:

高万超, 杨朝晖, 黄兢, 邓久华, 徐海音, 谢华明. 微生物絮凝剂捕集Cu(Ⅱ)的响应面优化及机理研究[J]. 环境工程学报, 2011, 5(11): 2411-2416.

Citation:

Gao Wanchao, Yang Zhaohui, Huang Jing, Deng Jiuhua, Xu Haiyin, Xie Huaming. Optimization of response surface and the mechanism study of microbial flocculants on capturing Cu (Ⅱ)[J]. Chinese Journal of Environmental Engineering, 2011, 5(11): 2411-2416.

微生物絮凝剂捕集Cu(Ⅱ)的响应面优化及机理研究

1. 湖南大学环境科学与工程学院，长沙 410082； 2.环境生物与控制教育部重点实验室(湖南大学)，长沙 410082

收稿日期: 2010-10-23

基金项目:

国家自然科学基金资助项目(30970105，51078131)

长沙科技计划重点资助项目(K0802151-31)

国家“水体污染控制与治理”科技重大专项(2009ZX07212-001-02)

关键词:

摘要: 采用BBD(box-behnken design) 法对微生物絮凝剂MBFGA1捕集25 mg/L含铜模拟废水中Cu(Ⅱ)的过程进行了优化，设定5个影响因子分别为pH值、MBFGA1投加量、CaCl2投加量、搅拌速度和搅拌时间，响应值为Cu(Ⅱ)的去除率，并利用傅里叶红外光谱仪对捕集机理进行了研究。结果表明，影响MBFGA1捕集Cu(Ⅱ)的显著性因素为MBFGA1投加量和搅拌速度；当pH为7.23，MBFGA1投加量为24.75 mg/L，CaCl2投加量为29

English Abstract

Optimization of response surface and the mechanism study of microbial flocculants on capturing Cu (Ⅱ)

1. College of Environmental Science and Engineering，Hunan University，Changsha 410082，China；2. Key Laboratory of Environmental Biology and Pollution Control (Hunan University)，Ministry of Education，Changsha 410082，China

Received Date: 2010-10-23

Fund Project:

Keywords:

Abstract: In this study，the box-behnken desigh (BBD) method was employed to investigate the removal of Cu(Ⅱ) by microbial flocculants MBFGA1 from simulation liquid waste. With the response target of Cu(Ⅱ) removal，five impact factors including pH，MBFGA1 concentration，CaCl2 concentration，stirring speed and time were examined and the initial concentration of Cu(Ⅱ) simulation liquid waste was 25 mg/L. The mechanism of capturing process was also studied through fourier transform infrared spectroscopy (FTIR). Results indicated that the capturing ability of Cu(Ⅱ) was greatly influenced by the concentration of MBFGA1 and the stirring speed. The optimal flocculating conditions were pH 7.23，MBFGA1 24.75 mg/L，CaCl2 29.25 mg/L，stirring speed 130.90 r/min and stirring time 47.79 s. Under these conditions the actual measurement of Cu (Ⅱ) was 0.08 mg/L and removal rate was more than 99.68%，capture capacity was 303.43 mg/g. Results of FTIR analysis demonstrated that hydroxyl，carbonyl and acetyl in MBFGA1 were responsible for capturing ability. Based on the results，the MBFGA1 was regarded as a potential absorbent for the removal of heavy metals.

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微生物絮凝剂捕集Cu(Ⅱ)的响应面优化及机理研究

Optimization of response surface and the mechanism study of microbial flocculants on capturing Cu (Ⅱ)

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微生物絮凝剂捕集Cu(Ⅱ)的响应面优化及机理研究

English Abstract

Optimization of response surface and the mechanism study of microbial flocculants on capturing Cu (Ⅱ)

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