污泥调理剂对高含锰市政污泥深度脱水影响研究  

Effect of sludge conditioner on deep dewatering of high-manganese civil sludge

作　　者：杨叶兵 邓仁健[2] 张旭 YANG Yebing;DENG Renjian;ZHANG Xu(Xiangtan Sewage Treatment Co.Ltd.,Xiangtan 411000,China;School of Civil Engineering,Hunan University of Science and Technology,Xiangtan 411201,China)

机构地区：[1]湘潭市污水处理有限责任公司,湖南湘潭411000 [2]湖南科技大学土木工程学院,湖南湘潭411201

出　　处：《贵州科学》2024年第4期58-61,共4页Guizhou Science

基　　金：湖南省环保科研课题(HBKT-2022012);湖南省自然科学基金资助项目(2022JJ30248,2021JJ30243)。

摘　　要：污泥调理剂不仅关系到污泥脱水效果而且还影响生产运行成本,因此选择合适的污泥调理剂对污泥深度脱水效果至关重要。本文利用生产性实验对比研究了硫酸亚铁+双氧水、PAC+PAM、聚季铵盐+PAM、生物絮凝剂和PAC+有机混凝剂等组合调理剂对高含锰市政污泥深度脱水效果、脱水液污染物浓度和处理成本等的影响。研究结果表明:经过5种组合药剂调理脱水后污泥含水率均小于55%;与硫酸亚铁+双氧水组合调理剂相比,其他4种组合药剂调理后均能减小脱水液中总锰、COD_(cr)、TN等污染物的浓度。从脱水效果、脱水液中污染浓度、处理成本和运行维护管理等角度综合考虑,高含锰市政污泥深度脱水采用PAC+有机混凝剂组合药剂进行调理是比较合理的。本研究可为高含锰市政污泥脱水调理剂的选择提供技术参考。Sludge conditioner is not only related to the dewatering effect but also affects the operating cost,so it is crucial to select the appropriate conditioner for the deep dewatering of sludge according to the properties of the sludge.In this paper,the effect of different conditioner combinations(ferrous sulfate+hydrogen peroxide,PAC+PAM,poly quaternary ammonium salt+PAM,biological flocculant,and PAC+organic coagulant)on the deep dewatering of high-manganese civil sludge was studied.The results showed that the water content of the sludge was less than 55%after treated by the 5 conditioner combinations.Except for ferrous sulfate+hydrogen peroxide,all the conditioner combinations could effectively reduce the total manganese,COD_(cr),TN and other pollutants in the dewatered solution.Comprehensively considering the dewatering effect,the pollution concentration in the dewatered solution,the treatment cost,and the operation and maintenance,it is suitable to adopt the PAC+organic coagulant combination for the deep dewatering of high-manganese civil sludge.This study can provide technical reference for the selection of dewatering conditioners for high-manganese civil sludge.

关 键 词：高含锰市政污泥 调理剂 组合 深度脱水 

分 类 号：TU992.3[建筑科学—市政工程]