%0 Journal Article
%T Removal of fluoride by combined technology of electrocoagulation-flotation-filtration<br>电絮凝-气浮-砂滤组合工艺除氟
%A Yang Tianming
%A Wang Hongjie
%A Lan Huachun
%A Ge Jiantuan
%A Gong Wenxin
%A Zhao Xu
%A <br>杨天明
%A 王洪杰
%A 兰华春
%A 葛建团
%A 巩文信
%A 赵旭
%J 环境工程学报
%D 2012
%I 
%X This paper investigated the removal of fluoride from aqueous solution using the combined technology of electrocoagulation-flotation-filtration.Effects of the voltage,hydraulic retention time(HRT) and initial fluoride concentration on the efficiency of fluoride removal were systematically evaluated.Results showed that the fluoride concentration was reduced to 0.92 mg/L with the initial fluoride concentration of 1.5 mg/L,HRT of 10 min and voltage of 15 V;the fluoride concentration was reduced to 0.98 mg/L with the initial fluoride concentration of 2.5 mg/L,HRT of 15 min and voltage of 15 V.The change of aluminum species in the effluent with time was characterized by Al-Ferron timed complex-colorimetric method.The result indicated that the content of Ala in the effluent of electrocoagulation unit rapidly decreased below 5% with the increase of time;the content of Alb in the effluent of both electrocoagulation and floatation units was above 50%;the content of Alc in the effluent of both units increased with time.
%K electrocoagulation
%K flotation
%K fluoride removal
%K drinking water<br>电混凝
%K 气浮
%K 除氟
%K 饮用水
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=4561954BE0A0F99D4BB017D595E2F970&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=B31275AF3241DB2D&sid=58826BCD25BE3ED6&eid=B2F4AE6815C8FC11&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=0