%0 Journal Article
%T Applying factorial experiments to study the toxicity effects of heavy metal mixture on nitrifying granules<br>混合重金属对硝化颗粒污泥毒性作用的析因实验研究
%A Wei Xiang
%A Ren Hongqiang
%A Yuan Li
%A Zhu Wenbin
%A <br>魏翔
%A 任洪强
%A 袁粒
%A 朱文斌
%J 环境工程学报
%D 2007
%I 
%X 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.
%K nitrifying granules
%K heavy metal
%K joint toxicity
%K factorial experiments
%K response surface model<br>硝化颗粒污泥
%K 重金属
%K 联合毒性
%K 析因实验
%K 响应曲面模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=E1DE5610D3B9733EF252A556F6A213CC&yid=A732AF04DDA03BB3&vid=CA4FD0336C81A37A&iid=94C357A881DFC066&sid=74011071555EB4E5&eid=DBF54A8E2A721A6D&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=15