%0 Journal Article
%T Degradation of Diuron by Persulfate Oxidation Activated by EDTA-Ferrous Ion in Aqueous System<br>水体系中EDTA-Fe(Ⅱ)/Ｋ２Ｓ２Ｏ８降解敌草隆的研究
%A ZHANG Jin-feng
%A YANG Xi
%A ZHENG Wei
%A KONG Ling-ren
%A WANG Lian-hong
%A <br>张金凤
%A 杨曦
%A 郑伟
%A 孔令仁
%A 王联红
%J 环境科学
%D 2008
%I 
%X The method of diuron (3-(3,4-dichlorophenyl)-1,1-dimethylurea) degradation by persulfate oxidation activated by EDTA-ferrous ion in aqueous system was conducted. Based on both of the degradation performance and the operating costs, optimal reaction condition was proposed. Operating at K2S2O8 initial concentration 2.0 mmol?L-1, Fe(II) initial concentration 1.0 mmol?L-1, EDTA initial concentration 0.5 mmol?L-1, reaction time 300 min and pH=7.0, about 67.6 % of 0.1 mmol?L-1 diuron was degradation. Hydroxyl radicals and sulfate radicals produced in the system were determined by molecular probes (ethanol and tert-butanol) methods. The degradation products of diuron were identified with LC/MS methods and the degradation pathways of diuron were discussed.
%K diuron
%K persulfate
%K ferrous ion
%K EDTA
%K sulfate radical
%K hydroxyl radical<br>敌草隆
%K 过硫酸钾
%K Fe(Ⅱ)
%K EDTA
%K 硫酸根自由基
%K 羟基自由基
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=4A52C2030364C69746E49C83773622E5&yid=67289AFF6305E306&vid=771469D9D58C34FF&iid=94C357A881DFC066&sid=1C7C31A28F5ECC6F&eid=F5C4DB540B02644F&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=16