%0 Journal Article
%T Effect of sorption heavy metal Cd2+,Pb2+ onto soils with dissolved organic matter of landfill-leachate<br>垃圾渗滤液水溶性有机物对土壤吸附重金属Cd2+、Pb2+的影响
%A FU Meiyun
%A ZHOU Lixiang
%A <br>付美云
%A 周立祥
%J 环境科学学报
%D 2006
%I 
%X Batch adsorption experiments were carried out to investigate effect of dissolved organic matter(DOM) of landfill leachate derived from different landfill sites(0?4~5?12y) on the sorption of Cd~ 2 ,Pb~ 2 in the acidic and calcareous soil. The results showed that the sorption of Cd~ 2 ,Pb~ 2 in soils was enhanced in the presence of landfill-leachate DOM . The Sorption isotherm of Cd~ 2 ,Pb~ 2 in soils in the presence of different landfill leachate DOM could be described well by the Frenudlich eqation(R~2>0.94), and the Sorption of Cd~ 2 and Pb~ 2 in soils were 1.13 to 1.42 and 1.09 to 1.84 times higher than the control in Absence of landfill leachate DOM, respectively. At the same initial concentration of Cd~ 2 and Pb~ 2 , acidic soil demonstrated much less ability to retain the Cd~ 2 and Pb~ 2 than calcareous soil due to much lower pH in the former, and landfill-leachate of longer landfill age enhanced sorption of Cd~ 2 ,Pb~ 2 in soils in comparison with the shorter the landfill age of landfill-leachate. The results showed that in the presence of landfill leachate DOM, increase of Cd~2 ,Pb~2 sorption capacity in soils was obvious with an increase in pH.
%K landfill-leachate
%K DOM
%K adsorption
%K Cd~(2 )/Pb~(2 )<br>垃圾渗滤液
%K 水溶性有机物
%K 吸附
%K Cd2
%K /Pb2
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=DDFAF48FFAEC2F64&yid=37904DC365DD7266&vid=96C778EE049EE47D&iid=94C357A881DFC066&sid=E0FF0FB27B45F84E&eid=849A5A9D85EBE6D4&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=4&reference_num=30