摘要
剩余污泥的处理处置已成为污水处理厂面临的一个重大挑战。厌氧消化是一种常用的污泥处理方法。传统的污泥厌氧消化存在许多不足,而污泥热碱处理能使之改善。综述了近年来污泥热碱处理的研究,从热碱处理的机理出发,总结了热碱处理对污泥性质和厌氧消化的影响,分析了影响污泥热碱处理效果的因素,并通过能耗分析讨论了热碱处理强化污泥厌氧消化的可行性,最后指出污泥热碱处理及其强化污泥厌氧消化存在的问题,并提出了建议和展望。
Huge amounts of sludge are produced in wastewater treatment,and the treatment and disposal of sewage sludge had become a rising challenge for the wastewater plant.Anaerobic digestion is a traditional method for sewage sludge treatment,which has some shortages.Recent research showed that thermal-alkaline pretreatment could enhance the anaerobic digestion of sewage sludge.In this study,the research progress of thermal-alkaline pretreatment of sludge was thoroughly reviewed,including the mechanism of thermal-alkaline pretreatment,the impact of thermal-alkaline pretreatment on the sludge properties and anaerobic digestion and the influencing factors.And the feasibility of thermal-alkaline pretreatment for enhancing anaerobic digestion of sewage sludge was discussed through energy consumption analysis.Finally,the enhancement of thermal-alkaline pretreatment on anaerobic digestion and its prospects and problems were also discussed.
作者
唐心漪
陈翔宇
肖本益
柳荣展
TANG Xin-yi;CHEN Xiang-yu;XIAO Ben-yi;LIU Rong-zhan(Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;University of Chinese Academy of Sciences,Beijing 100049,China;College of Textiles and Clothing,Qingdao University,Qingdao 266071,China)
出处
《环境工程》
CAS
CSCD
北大核心
2022年第5期218-226,共9页
Environmental Engineering
基金
山东省重大科技创新工程项目(2019JZZY020301)
水体污染控制与治理国家科技重大专项(2017ZX07106003-002)。
关键词
热碱处理
剩余污泥
厌氧消化
强化
影响因素
thermal-alkaline pretreatment
excess sludge
anaerobic digestion
enhancement
influencing factor
