%0 Journal Article
%T Feasibility of bioleached sewage sludge in land application<br>生物沥滤污泥土地利用适用性分析
%A HUA Yu-mei
%A CHEN Ying-xu
%A WU Wei-xiang
%A TIAN Guang-ming
%A <br>华玉妹
%A 陈英旭
%A 吴伟祥
%A 田光明
%J 生态学杂志
%D 2007
%I 
%X Based on the analysis of heavy metals, nutrients and sulfate in bioleached sewage sludge, the feasibility of this sludge in land application was approached in this paper. The results showed that after bioleaching, most of the heavy metals in the supernatant of the sludge were removed through solid-liquid separation, and the removal efficiency of Cu, Pb and Zn was 84.1%, 34.8% and 80.0%, respectively. The heavy metals remained in the sludge were mainly existed in stable forms, which made a higher security for land application. The bioleaching loss of the nitrogen, phosphorus and potassium in sludge was 38.2%, 52.1% and 42.8%, respectively, but the sludge still remained satisfactory fertilizer value. X-ray diffraction analysis indicated that the sulfate remained in the sludge after bioleaching was mostly combined with calcium, resulting in a negligible environmental impact.
%K sewage sludge
%K land application
%K bioleaching
%K heavy metal's form
%K nutrient<br>污泥
%K 土地利用
%K 生物沥滤
%K 重金属形态
%K 营养物质
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=B04840A985D251F36078BD07A90EF003&aid=7FA4E78FBFDC4C4B&yid=A732AF04DDA03BB3&vid=96C778EE049EE47D&iid=5D311CA918CA9A03&sid=FE01B30EDB347E58&eid=B169842BD52221DD&journal_id=1000-4890&journal_name=生态学杂志&referenced_num=0&reference_num=14