摘要
随着经济社会的进步与污水处理技术的发展,城镇污水处理总量逐年增加,随之带来污水厂副产物污泥的大量产生。剩余污泥产量大、含水率高且还有可能存在致病菌、重金属等有毒有害物质超标的问题,如何有效对污泥进行处理处置并资源化,是当前研究的热点问题。文中综合了国内外公开发表的相关研究成果,概述了当前污泥脱水、调质、稳定化、热干化等处理方法,总结了几种常见污泥处置技术应用的研究现状及发展趋势;重点阐述了污泥焚烧处置的发展现状与优势,分析了污泥燃烧设备中流化床、多膛式焚烧炉和回转窑的优缺点,为未来污泥处理处置及资源化的研究提供参考。
With the development of economic society and wastewater treatment technology,the increasing amount of wastewater causes a great increase of sludge,which is the by-product of wastewater treatment plant(WWTP).Because of the great amount of sludge yield,high water content and a large number of pathogenic bacteria and heavy metals,sludge is harmful to the environment.How to effectively treat,dispose and recycle the sludge is a focus issue in current researches.Based on relevant research publishers at home and abroad in recent years,this paper summarizes the current sludge treatment methods,such as dehydration,conditioning,stabilization and thermal drying,and analyzes the application research status and development trend of several common sludge disposal technologies.Focused on the development status and advantages of sludge incineration,this paper mainly analyzes the advantages and disadvantages of fluidized bed,multi chamber incinerator and rotary kiln in sludge combustion equipment,so as to provide reference for the research of sludge treatment,disposal and recycling in the future.
作者
王莉
何蓉
雷海涛
WANG Li;HE Rong;LEI Haitao(Institute of Architectural Engineering,Xianyang Vocational Technical College,Xianyang712000,China;Shaanxi Zhishan Environmental Engineering Co.,Ltd.,Xianyang712000,China)
出处
《净水技术》
CAS
2022年第11期16-21,69,共7页
Water Purification Technology
基金
咸阳市2021年度科学技术研究与发展计划(2021ZDYF-GY-0032)。
关键词
剩余污泥
污泥处理处置
技术现状
污泥炉
污水处理厂
excess sludge
sludge treatment and disposal
technology status
sludge incinerator
wastewater treatment
plant(WWTP)
