| 混合重金属对硝化颗粒污泥毒性作用的析因实验研究 |
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| 引用本文： | 魏翔,任洪强,袁粒,朱文斌. 混合重金属对硝化颗粒污泥毒性作用的析因实验研究[J]. 环境工程学报, 2007, 1(5): 101-104 |
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| 作者姓名： | 魏翔 任洪强 袁粒 朱文斌 |
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| 作者单位： | 南京大学环境学院,污染控制与资源化研究国家重点实验室,南京,210093;南京大学环境学院,污染控制与资源化研究国家重点实验室,南京,210093;南京大学环境学院,污染控制与资源化研究国家重点实验室,南京,210093;南京大学环境学院,污染控制与资源化研究国家重点实验室,南京,210093 |
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| 摘 要： | 分别测定了Cu2 、Zn2 和Cd2 对硝化颗粒污泥的单一毒性,采用析因实验研究了二元和三元重金属混合体系对硝化颗粒污泥的联合毒性.结果表明,Cu2 、Zn2 和Cd2 的2 h半抑制浓度EC50分别为95.23、62.11和12.48 mg/L,由析因实验所得的响应曲面模型具有较好的优度(其R2＞0.95),能够对混合体系的联合毒性很好地进行预测,析因实验可以用于环境领域混合体系联合毒性的研究.
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| 关 键 词： | 硝化颗粒污泥 重金属 联合毒性 析因实验 响应曲面模型 |
| 文章编号： | 1673-9108（2007）05-0101-04 |
| 修稿时间： | 2007-04-05 |
Applying factorial experiments to study the toxicity effects of heavy metal mixture on nitrifying granules |
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| Wei Xiang,Ren Hongqiang,Yuan Li and Zhu Wenbin. Applying factorial experiments to study the toxicity effects of heavy metal mixture on nitrifying granules[J]. Techniques and Equipment for Environmental Pollution Control, 2007, 1(5): 101-104 |
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| Authors: | Wei Xiang Ren Hongqiang Yuan Li Zhu Wenbin |
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| Affiliation: | State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093,State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093,State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093 and State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093 |
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| Abstract: | The single toxicity of copper,zinc and cadmium to nitrifying granules were determined respectively.The joint toxicity of binary and ternary mixtures were studied by the application of factorial experiments.The results showed that the EC50 of 2 hours of Cu2 ,Zn2 ,and Cd2 were 95.23,62.11 and 12.48 mg/L,respectively.The resultant response surface models were of high qualities reflected by the R2 above 0.95.Furthermore,the prediction of the joint toxicity of metal mixtures can be well made based on the models obtained.It is feasible for factorial experiments to be applied in the study on the joint toxicity of mixtures in the environmental fields. |
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| Keywords: | nitrifying granules heavy metal joint toxicity factorial experiments response surface model |
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