| ToxTell生物传感器在Cu2+、Zn2+冲击活性污泥系统分析中的应用 |
| |
| 引用本文： | 王鑫,贺莹,刘免,吴真,杨连珍,王学江. ToxTell生物传感器在Cu2+、Zn2+冲击活性污泥系统分析中的应用[J]. 环境科学学报, 2012, 32(5): 1049-1053 |
| |
| 作者姓名： | 王鑫 贺莹 刘免 吴真 杨连珍 王学江 |
| |
| 作者单位： | 1. 同济大学环境科学与工程学院污染控制与资源化研究国家重点实验室,上海,200092
2. 广东粤港供水有限公司,深圳,518018 |
| |
| 基金项目： | 国家自然科学基金项目(No.20707014,51179127);中央高校基本科研业务费专项资金 (No. 0400219197) |
| |
| 摘 要： | 探讨了不同浓度Cu2+及Cu2+和Zn2+联合对活性污泥系统CODCr去除的影响,并采用ToxTell生物传感器,以活性污泥为指示微生物,分析了上述金属离子的毒性抑制作用.结果表明,Cu2+浓度为5mg·L-1时,其对活性污泥工艺CODCr去除存在一定的促进作用,随着Cu2+浓度的增加,其对CODCr的去除的抑制作用逐渐增强;Cu2+及Cu2+和Zn2+对活性污泥系统在抑制时间为1.5h时达到最大抑制状态,但随着曝气时间的延长,CODCr去除率呈逐渐上升趋势.ToxTell生物传感器对Cu2+和Zn2+的混合毒性具有良好的分析性能,其毒性分析结果与活性污泥工艺中CODCr的去除抑制率具有良好的一致性,初步证实该生物传感器能很好地用于活性污泥处理系统受Cu2+和Zn2+冲击的预警监测.
|
| 关 键 词： | 生物传感器 毒性 活性污泥 抑制 |
| 收稿时间： | 2011-08-12 |
| 修稿时间： | 2011-10-21 |
Toxicities assessment of Cu2+ and Zn2+ on activated sludge by ToxTell biosensor |
| |
| WANG Xin,HE Ying,LIU Mian,WU Zhen,YANG Lianzhen and WANG Xuejiang. Toxicities assessment of Cu2+ and Zn2+ on activated sludge by ToxTell biosensor[J]. Acta Scientiae Circumstantiae, 2012, 32(5): 1049-1053 |
| |
| Authors: | WANG Xin HE Ying LIU Mian WU Zhen YANG Lianzhen WANG Xuejiang |
| |
| Affiliation: | State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai 200092;Guangdong Yuegang Water Supply Company, Shenzhen 518018;State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai 200092;State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai 200092;State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai 200092;State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai 200092 |
| |
| Abstract: | The effects of different concentrations of Cu2+ and Cu2+ and Zn2+ combinations on CODCr removal performance in activated sludge system were investigated, and the ToxTell biosensor with activated sludge was developed to determine the toxicities of Cu2+ and Cu2+ and Zn2+ combinations. The results showed that there was a stimulative effect on the activated sludge process when Cu2+ concentration was at 5 mg·L-1, and with its concentration increasing the inhibition of CODCr removal efficiency was gradually strengthened. CODCr removal reached its maximum inhibition efficiency at about 1.5 h, and with the extension of aeration time, the CODCr removal efficiency increased gradually. Single Cu2+ and Cu2+ and Zn2+ combination toxicities determined with ToxTell biosensor were in accordance to the CODCr removal inhibition effects, which showed that the ToxTell biosensor could be used well in the early warming determination of Cu2+ and Zn2+ in activated sludge process. |
| |
| Keywords: | biosensor toxicity activated sludge inhibition |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
|
点击此处可从《环境科学学报》下载全文 |
|
