%0 Journal Article
%T Effects of Fly Ash on the Exchangeable Heavy Metals (Cu, Zn, Pb) During Sewage Sludge Composting and Land Utilization<br>粉煤灰对污泥堆肥过程和土地施用后交换态重金属（Cu，Zn，Pb）的影响
%A SHENG Jun
%A LU Wen-jing
%A WANG Hong-tao
%A <br>生骏
%A 陆文静
%A 王洪涛
%J 环境科学
%D 2007
%I 
%X A series of composting test using fly ash as stabilizing agent were investigated to study the variation of the exchangeable heavy metals during composting and land utilization. A whole procedure of adsorption and desorption of stabilized heavy metals were analyzed. The result shows that the exchangeable Cu increases while the exchangeable Zn and Pb decrease during composting. Fly ash has significant stabilizing effect on Zn and Pb as evidenced by a decline of 62.47% and 92.61% respectively in the trails with flay ash as stabilizing agent. However there is no obvious change with exchangeable Cu. Although there is a big difference on the activities of heavy metals in different soil types tested, it seems to be ineluctable that addition of sewage sludge composting products cause enrichment of heavy metal in soil.
%K sewage sludge
%K composting
%K heavy metal
%K exchangeable status
%K stability materials<br>污泥
%K 堆肥
%K 重金属
%K 交换态
%K 稳定剂
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=BC85E858628321E1F41013A27C3AE7ED&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=B31275AF3241DB2D&sid=7264799D7F648D02&eid=40DE18199B7CA9BB&journal_id=0250-3301&journal_name=环境科学&referenced_num=7&reference_num=11