环境工程学报2016，Vol.10Issue(10)：5447-5452,6.DOI:10.12030/j.cjee.201505138
污泥调理对给水污泥脱水性能的影响
Effects of conditionings on sludge dewaterability for water treatment residuals
摘要
Abstract
To understand the effects of conditioning on the dewaterability of water treatment residuals,sludge properties were investigated and varying chemical conditioning experiments were performed.There were some large discrepancies in organic matter content and zeta potential between two water treatment residuals.The Daqing water treatment residuals had a higher hydrophilic substance content,such as insoluble macromolecular organic matter and humic acid,which restricted the dewatering properties.The differences between SRF,SV,and CST in the two water treatment residuals indicated that dewaterability for the Nantong water treatment residuals was much better than it was for Daqing.After conditioning,the dewaterability of the two water treatment residuals improved.For the Nantong water treatment residuals,HPAC was the best conditioning chemical,and PAM and PACl were the weakest chemical performers.For the Daqing water treatment residuals,PACl and HPAC did not perform well enough to enhance the dewatering properties.Although anionic PAM increased TOC after conditioning,its strong adsorption-bridging ability bridged the sludge particles,allowing them settle down effectively.关键词
污泥/脱水性能/调理/混凝Key words
sludge/dewatering ability/conditioning/coagulation分类
资源环境引用本文复制引用
穆丹琳,徐慧,肖峰,王东升,段晋明..污泥调理对给水污泥脱水性能的影响[J].环境工程学报,2016,10(10):5447-5452,6.基金项目
国家水体污染控制与治理科技重大专项(2012ZX078408-001-05):国家自然科学基金面上项目(51378014) （2012ZX078408-001-05）
