生石灰稳定干化对生活污泥理化性质的影响  

Physical and chemical properties of sewage sludge stabilized by quicklime

作　　者：庄明明[1] 王小治[1] 柏彦超[1] 汪莉[1] 封克[1] 

机构地区：[1]江苏省扬州农业环境安全技术服务中心/扬州大学环境科学与工程学院,扬州225127

出　　处：《环境工程学报》2012年第9期3270-3274,共5页Chinese Journal of Environmental Engineering

基　　金：江苏省环境材料与环境工程重点实验室项目;扬州市社会发展科技攻关项目(yz2010077)

摘　　要：生活污泥添加其干基质量6%、12%和18%生石灰稳定干化30 d,对不同时期混合物的理化指标进行取样分析。研究结果表明,生石灰稳定干化污泥,污泥的脱水性能得到有效改善,有机质和氮素的损失率分别为14%～29%和23%～26%,磷素含量稳定;微生物检测表明添加18%的生石灰能够有效杀死蛔虫卵。Sewage sludge and its mixtures with 6% , 12% and 18% （on a dry weight basis） of quicklime were stabilized for 30 days, changes of the sludge physicochemical properties were investigated. The results of the study indicated that the performance of dewatering was improved, the organic matter and nitrogen decreased by 14% -29% and 23% -26% , respectively, while phosphorus was steady. Ascaris eggs were killed in sludge mixes with 18% quicklime.

关 键 词：生活污泥 生石灰 稳定干化 理化性质 

分 类 号：X705[环境科学与工程—环境工程]