摘要
随着我国经济快速发展及城市化水平提升,城市生活垃圾产量越来越大,焚烧逐渐成为城市生活垃圾处理的主要方式。但焚烧会产生大量的垃圾焚烧飞灰(以下简称飞灰),飞灰属于危险废物。论述了飞灰的来源、成分、特性及危害,介绍了飞灰的处理处置技术:水泥固化技术、化学药剂稳定化技术、熔融固化技术、水热稳定化技术和水泥窑协同处理技术,并分析这几类处理技术的优缺点。同时,介绍了将飞灰用作生产水泥材料、建筑材料、烧制多孔陶粒轻骨料及制备混凝土几种资源化利用途径。对今后飞灰的处理及资源化利用提出了展望。
With the rapid development of my country's economy and the improvement of the level of urbanization,the output of municipal solid waste is increasing.Incineration has gradually become the main method of municipal solid waste treatment,but incineration will produce a large amount of municipal solid waste incineration fly ash(hereinafter referred to as fly ash),which is a hazardous waste.This article discussed the source,composition,characteristics and hazards of fly ash,and introduced the treatment and disposal technology of fly ash:cement curing technology,chemical agent stabilization technology,melting and curing technology,hydrothermal stabilization technology and cement kiln co-processing technology,and analyzed the advantages and disadvantages of these types of processing technologies.At the same time,several resource utilization ways of using fly ash as cement material,building material,firing porous ceramsite light aggregate and preparing concrete are also introduced.Prospects are put forward for the treatment and resource utilization of fly ash in the future.
作者
倪海凤
旦增
周鹏
杨涛
许飞
NI Haifeng;DAN Zeng;ZHOU Peng;YANG Tao;XU Fei(Tibet University College of Science,Lhasa 850000,China;College of Environmental Science and Engineering,Tianjin University,Tianjin 300072,China)
出处
《再生资源与循环经济》
2021年第3期24-30,共7页
Recyclable Resources and Circular Economy
基金
国家自然科学基金(51668056)
中央支持地方高校改革发展专项资金(ZFYJY201902012)
西藏大学科研培育基金之成长计划项目(ZDTSJH19-14)
西藏自治区青年创新支持计划项目(QCZ2016-01)。
关键词
飞灰
处理处置
资源化利用
研究现状与进展
fly ash
treatment and disposal
resource utilization
research status and progress
作者简介
倪海凤(1995-),女,土家族,贵州铜仁人,硕士研究生,研究方向:城市生活垃圾处理处置及资源化研究;通讯作者:旦增(1981-),男,藏族,西藏日喀则市人,天津大学博士研究生,西藏大学理学院副教授,硕导,研究方向:固体废物处理技术与管理。
