%0 Journal Article
%T Study on the Disposal Process for Removing Heavy Metal Ions from Wastewater by Composite Biosorbent of Nano Fe3O4/Sphaerotilus natans<br>纳米Fe3O4负载的浮游球衣菌去除重金属离子的工艺研究
%A GUAN Xiao-hui
%A QIN Yu-chun
%A WANG Li-wen
%A YIN Rong
%A LU Min
%A YANG Ying-jun
%A <br>关晓辉
%A 秦玉春
%A 王立文
%A 尹荣
%A 鲁敏
%A 杨迎军
%J 环境科学
%D 2007
%I 
%X Composite biosorbent nano Fe3O4/Sphaerotilus natans was prepared when nano Fe3O4 was used as carrier, then the composite biosorbent characterized by infrared instrument and investigated on adsorbing heavy metal ions from wastewater. Infrared spectrum analysis shows that--CONH--and--OH are principal activated groups of composite biosorbent. The experiment of adsorption shows that biomass concentration and flow velocity are main influencing factors. The composite biosorbent has best effect on the adsorption of Cu2+ under the conditions of biomass 1.5 g/L (Sphaerotilus natans/Fe3O4 = 3:2), flow velocity 0.96 L/h and initial concentration of Cu2+ was less than 20 mg/L. Composite biosorbent can be used for more 10 times when biosorbent was regenerated by HCl solution, and HCl solution can be used 3 times repeatedly. The selective sequence was Ph2+ > Cu2+ > Zn2+ > Cd2+.
%K Sphaerotilus natans
%K nano Fe3O4
%K composite biosorbent
%K heavy metal ions<br>浮游球衣菌
%K 纳米Fe3O4
%K 复合生物吸附剂
%K 重金属离子
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=1C3043F3099DA7879ED2BD1D694CC13F&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=0B39A22176CE99FB&sid=08076B8B3CC96095&eid=78976D931AD1540F&journal_id=0250-3301&journal_name=环境科学&referenced_num=1&reference_num=16