污泥高效脱水微界面调控原理与技术进展  

Advances in micro-interface regulation theory and technology for efficient sludge dewatering

作　　者：张伟军[1,2] 彭赛楠 王东升 ZHANG Weijun;PENG Sainan;WANG Dongsheng(National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;School of Environmental Studies,China University of Geosciences(Wuhan),Wuhan 430074,Hubei,China;College of Environmental and Resource Sciences,Zhejiang university,Hangzhou 310058,Zhejiang,China)

机构地区：[1]中国科学院生态环境研究中心,工业废水无害化与资源化国家工程研究中心,北京100085 [2]中国地质大学(武汉)环境学院,武汉430074 [3]浙江大学环境与资源学院,杭州310058

出　　处：《环境工程学报》2025年第1期21-39,共19页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(52122010)。

摘　　要：高含水率污泥是污水生物处理过程中不可避免的副产品。深度脱水可以实现污泥高效减量,是提升污泥资源化和能源化效率的关键环节。胞外聚合物(extracellular polymeric substances,EPS)是污泥的重要组分,对污泥的脱水性有着极其重要的影响。有关EPS影响污泥水分转化的界面过程化学研究形成了当下污泥强化脱水调理技术开发的重要内容和理论基础。因此,基于EPS调控强化污泥脱水的微界面理论,系统梳理了EPS主导的污泥水分赋存机制和污泥结合水高效释放的调控方向及对应调理技术的研究与进展,指出了进一步明确EPS结构特性所面对的机遇与挑战,以期为污泥深度脱水工艺的技术革新提供参考。Sludge with high moisture content is the unavoidable by-product in wastewater biological treatment process.The key process to enhance the efficiency of sludge resource utilization and energy recovery is the efficient reduction of sludge through deep dewatering.As an essential component of sludge,extracellular polymeric substances(EPS)play an extremely important role in determining sludge dewaterability.Research on the interfacial chemistry of EPS affecting sludge water transformation formed the priority content and theoretical basis for the current development of sludge enhanced dewatering technology.Thus,based on the micro-interface theory of EPS regulation for enhancing sludge dewaterability,EPS-dominated sludge water occurrence states and the directions for regulating the efficient release of sludge-bound water,as well as the research and progress of conditioning technology were systematically introduced,and the opportunities and challenges for further knowledge on EPS structural properties were pointed out,with a view to providing references for process innovation in sludge deep dewatering.

关 键 词：污泥脱水 胞外聚合物 微界面化学 胞外聚合物调控 污泥调理技术 

分 类 号：X705[环境科学与工程—环境工程]