絮凝剂调理对污泥脱水性能的影响研究  

Study on the Influence of Flocculant Conditioning on Sludge Dewatering Performance

作　　者：本莲芳 夏德强[1] 姜红霞 武富贤 BEN Lian-fang;XIA De-qiang;JIANG Hong-xia;WU Fu-xian(Petrochemical School,Lanzhou Petrochemical Polytechnic,Lanzhou 730060,China)

机构地区：[1]兰州石化职业技术学院石油化学工程学院,甘肃兰州730060

出　　处：《兰州石化职业技术学院学报》2020年第3期1-3,共3页Journal of Lanzhou Petrochemical Polytechnic

基　　金：2018年甘肃省高等学校科研项目(2018A-157);兰州石化职业技术学院2018年度教科研项目(KJ2018-01、KJ2018-09)。

摘　　要：污水处理产生的污泥是典型的有机污泥,是一种亲水性污泥,它很难通过沉降进行彻底的固液分离。因此如何提高污泥脱水性能,一直是水处理中研究的重点课题。取兰州石化污水处理厂二沉池的污泥,以污泥比阻作为污泥脱水性能的主要指标,以聚丙烯酰胺(PAM),聚合氯化铝(PAC),聚合硫酸铁(PFS)为调理剂对污泥进行调理,探究了不同药剂投加量、pH对污泥脱水性能的影响。确定其最佳投加量以及最佳pH,为实际生产提供依据。The sludge produced by sewage treatment is a typical organic sludge and a hydrophilic sludge.It is difficult to separate solid from liquid thoroughly through sedimentation.Therefore,how to improve sludge dewatering performance has always been a key research topic in water treatment.The sludge from the secondary clarifier of Lanzhou Petrochemical Wastewater Treatment Plant was selected as the main index of sludge dewatering performance.The sludge was conditioned with polyacrylamide(PAM),polyaluminium chloride(PAC)and polyferric sulfate(PFS)as conditioners.The effects of dosage of different agents and PH on sludge dewatering performance were explored.The optimum dosage and PH were determined to provide basis for actual production.

关 键 词：絮凝剂 污泥脱水 污泥比阻 

分 类 号：X703[环境科学与工程—环境工程]