%0 Journal Article
%T Leaching effects of different environmental materials on soils polluted by Pb and Cd<br>不同环境材料对Pb、Cd污染土壤的淋溶效应
%A PENG Licheng
%A HUANG Zhanbin
%A SHI Yu
%A HE Lei
%A ZHANG Zhiming
%A LIU Yaqi
%A <br>彭丽成
%A 黄占斌
%A 石宇
%A 何磊
%A 章智明
%A 刘亚琦
%J 环境科学学报
%D 2011
%I 
%X In order to investigate the removal efficiency of heavy metals in soil by environmental materials,the leaching effect of different environmental materials,humic acid(HA),polymer materials(SAP),fly ash(FM) and zeolite(FS),on soil polluted by Pb and Cd was measured by soil column leaching.The results showed that the pHvalues of the soil leaching first increasing and then decreasing and rising again,were alkaline in the above environmental media.The electricity conductivity(EC) of the soil leaching treated by fly ash and complex environmental media N1(HA+SAP+FM+FS)and N2(HA+SAP+FM),was obviously higher than that of the soil leaching treated by other environmental materials.For the soil polluted by Pb,the fixation of Pb in environmental media,such as fly ash and N1,N2 was higher than that of Pb in check environmental media;By comparison,for the soil polluted by Cd,the fixation of Cd in polymer materials was higher than that of Cd in other check environmental materials.In the soil contaminated by Pb and Cd,the fixation of Pb by humic acid was higher than that of Pb by check material,and compared with check material,the Pb release quantity treated by HAwas 40.6% of it.And the fixation of Cd by polymer materials and N3(HA+SAP+FS) was higher than that of Cd by check material,and compared with check leaching,the Cd concentration of leaching reached to 55.32% and 78.13% respectively.Therefore,it indicated that the environmental materials played an inhibitory effect on leaching of heavy metals.
%K environmental materials
%K heavy metal
%K lead(Pb)
%K cadmium(Cd)
%K soil
%K leaching<br>环境材料
%K 重金属
%K 铅（Pb）
%K 镉（Cd）
%K 土壤
%K 淋溶
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=3DD5F53F73E11E97C6A498C8D1DEE7E2&yid=9377ED8094509821&vid=4AD960B5AD2D111A&iid=94C357A881DFC066&sid=BE9F677535B03A98&eid=11924CB7A7AEB526&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=0&reference_num=23