%0 Journal Article
%T Practical performance and its effciency of arsenic removal from groundwater using Fe-Mn binary oxide<br>
%A Fangfang Chang
%A Jiuhui Qu
%A Ruiping Liu
%A Xu Zhao
%A Pengju Lei
%A <br>
%J 环境科学学报(英文版)
%D 2010
%I 
%X A treatment unit packed by granular adsorbent of Fe-Mn binary oxide incorporated into diatomite (FMBO(1:1)-diatomite) was studied to remove arsenic from anaerobic groundwater without any pre-treatment or post-treatment. The raw anaerobic groundwater containing 35-45 μg/L of arsenic was collected from suburb of Beijing. Arsenic(Ⅲ) constituted roughly 60%-80% of the total arsenic content. Approximately 7,000 bed volumes (ratio of effluent volume to adsorbent volume) treated water with arsenic concentration below 10 μg/L were produced in the operation period of four months. The regeneration of FMBO(1:1)-diatomite had been operated for 15 times. In the first stage, the regeneration process significantly improved the adsorption capacity of FMBO(1:1)-diatomite. With increased loading amount of Fe-Mn binary oxide, the adsorption capacity for arsenic decreased 20%-40%. Iron and manganese in anaerobic groundwater were oxidized and adsorptive filtrated by FMBO(1:1)-diatomite efficiently. The final concentrations of iron and manganese in effluents were nearly zero. The continued safe performance of the treatment units proved that adsorbent FMBO(1:1)-diatomite had high oxidation ability and exhibited strong adsorptive filtration.
%K arsenic
%K groundwater
%K adsorption
%K filtration
%K Fe(II)
%K Mn(II)<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=A1D80ABBF463E25C04E218FE3738C5B4&yid=140ECF96957D60B2&vid=BC12EA701C895178&iid=CA4FD0336C81A37A&sid=CA4FD0336C81A37A&eid=B31275AF3241DB2D&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=23