%0 Journal Article
%T Leaching behavior of Pb and Zn in air pollution control residues and their modeling prediction
%A ZHANG Hu
%A HE Pin-jing
%A SHAO Li-ming
%A FENG Jun-hui
%A CAO Qun-ke
%A <br>ZHANG Hu
%A HE Pin-jing
%A SHAO Li-ming
%A FENG Jun-hui
%A CAO Qun-ke
%J 环境科学学报(英文版)
%D 2006
%I 
%X Increasing attention has been paid to air pollution control (APC) resi dues in China recently due to the rising proportion of waste incineration and th e hazardous characteristics of the residues, among which heavy metal leaching to xicity plays an important role. Leaching behavior and potential risk of Pb and Z n in the APC residues from a Shanghai municipal solid waste (MSW) incinerator wa s studied, based on the leaching tests under different conditions and theoretica l calculation using a geochemical thermodynamic equilibrium model MINTEQA2. Res ults showed that, extractant species and liquid to solid (L/S) ratio predomina ntly controlled the leaching toxicity of Pb and Zn, while ionic strength, vibr ation method and leaching time had less effect on the metals release. Leachate/f inal pH determined the metal leaching behavior, which changed the speciation of heavy metals in the extraction system. The equilibrium aqueous speciation, preci pitation-dissolution of Pb and Zn was investigated according to the model comput ation, which was well in agreement with the experimental results.
%K leaching behavior
%K air pollution control residues
%K MINTEQA2
%K incineration plant
%K heavy metals<br>大气污染
%K 淋洗作用
%K 重金属
%K 残留物
%K 锌
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=E5A2D833E7D3F481C2D33D7CA7F261C9&yid=37904DC365DD7266&vid=13553B2D12F347E8&iid=38B194292C032A66&sid=7882A2973AA04DE8&eid=CD26609C367AC9C8&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=16