%0 Journal Article
%T Study on removal of Pb2+ in aqueous solution by zeolite 4A<br>4A沸石去除水中Pb2+的研究
%A Ma Zhaoyang
%A Jin Lanshu
%A <br>马昭阳
%A 金兰淑
%J 环境工程学报
%D 2010
%I 
%X Under static state, the Pb~(2+) in aqueous solution adsorption on zeolite 4A was studied. The results showed that the removal rate of Pb~(2+) in aqueous solution was up to 99% after 20 min at 30℃ when a 5 ～6 pH 10 mL aqueous solution of Pb~(2+) (100 mg/L) was adsorbed by 0. 01 g zeolite 4A. The isothermal adsorption of zeolite 4A for Pb~(2+) fit Langmuir equation and Freundlich equation under the condition of experimental concentration. The correlation coefficient was 0. 9819 and 0. 9998. The maximum adsorption capacity of zeolite 4A toward Pb~(2+) was 125 mg/g by calculation. It took a short period of time to reach the adsorption equilibrium. The pH value had no prominent effect on the removal rate of Pb~(2+). The removal rate of Pb~(2+) was increased less as temperature increased in the specified scope. It was able to regenerate zeolite 4A and recover Pb~(2+).
%K Pb~(2+)
%K zeolite 4A
%K wastewater
%K adsorption
%K lead ion<br>4A沸石
%K 废水
%K 吸附
%K Pb2+
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=0E7106DC416587C5B60D49F81FC59B65&yid=140ECF96957D60B2&vid=E158A972A605785F&iid=E158A972A605785F&sid=FCB110411B6339D8&eid=43AADF4B53A8BF6F&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=11