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| Cu~(2+)和Ni~(2+)对硝化颗粒污泥的毒性作用 | |
| 引用本文： | 魏翔,伍永钢,任洪强.Cu~(2+)和Ni~(2+)对硝化颗粒污泥的毒性作用[J].甘肃农业大学学报,2010,45(2). |
| 作者姓名： | 魏翔 伍永钢 任洪强 |
| 作者单位： | 1. 无锡市锡山区建设局,江苏,无锡,214101;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,江苏,南京,210093 2. 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,江苏,南京,210093;安徽师范大学环境科学学院,安徽,芜湖,241000 3. 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,江苏,南京,210093 |
| 基金项目： | 江苏省社会发展项目(BS2005050) |
| 摘 要： | 测定了Cu2+和Ni2+对硝化颗粒污泥的单一毒性,采用析因实验研究了Cu2+和Ni2+混合体系对硝化颗粒污泥的联合毒性.结果表明,Cu2+和Ni2+的2 h半抑制浓度EC50分别为95.23 mg.L-1和26.45 mg.L-1.由析因实验所得的响应曲面模型具有较好的优度(R2为0.975),能够较好地对混合体系的联合毒性进行预测.Cu2+和Ni2混合体系的毒性表现为拮抗作用. |
| 关 键 词： | 硝化颗粒污泥 Cu2+ Ni2+ 联合毒性 |
Study on the toxic effects of Cu2+and Ni2+ on nitrifying granules |
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| WEI Xiang,WU Yong-gang,REN Hong-qiang.Study on the toxic effects of Cu2+and Ni2+ on nitrifying granules[J].Journal of Gansu Agricultural University,2010,45(2). | |
| Authors: | WEI Xiang WU Yong-gang REN Hong-qiang |
| Institution: | 1.Xishan District Construction Bureau of Wuxi City;Wuxi 214101;China;2.State Key Laboratory of Pollution Control and Resource Reuse;The School of Environment;Nanjing University;Nanjing 210093;3.College of Environmental Science;Anhui Normal University;Wuhu 241000;China |
| Abstract: | The single toxicity of Cu2+and Ni2+to nitrifying granules were determined respectively.The joint toxicity of Cu2+ and Ni2+ mixtures were studied by the application of factorial experiments.The results showed that the EC_50 of Cu2+ and Ni2+ were 95.23 and 26.45 mg·L-1,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 Cu2+ and Ni2+ mixtures could be well made based on the models obtained.The joint toxic of Cu2+ and Ni2+ mixtures showed antagonistic. |
| Keywords: | nitrifying granules Cu2+ Ni2+ joint toxicity |
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