固废基材料固化垃圾焚烧飞灰生命周期评价  

Life Cycle Assessment of Solidification/Stabilization Technology for Municipal Solid Waste Incineration Fly Ash

作　　者：周永门 周显 陈霞[2] 范泽宇 高卓凡 邓闪闪 鲁麒 万沙 ZHOU Yong-men;ZHOU Xian;CHEN Xia;FAN Ze-yu;GAO Zhuo-fan;DENG Shan-shan;LU Qi;WAN Sha(Research Center on Hydraulic Structure Safety Engineering Technology,Jiangxi Academy of Water Science and Engineering,Nanchang 330029,China;Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources,Changjiang River Scientific Research Institute,Wuhan 430010,China)

机构地区：[1]江西省水利科学院水工安全工程技术研究中心,南昌330029 [2]长江科学院水利部水工程安全与病害防治工程技术研究中心,武汉430010

出　　处：《长江科学院院报》2025年第1期208-214,共7页Journal of Changjiang River Scientific Research Institute

基　　金：国家自然科学基金项目(52300147);江西省水利科学院开放基金项目(202ISKSG04)。

摘　　要：钢渣、矿渣、气化粉煤灰等固体废弃物具有潜在活性,可用于危险废物的无害化处置,实现以废治废的目的。选取矿渣基胶凝材料、铝酸盐水泥、矿渣-熟料-维生素C、赤泥-煤矸石地聚物、钢渣-气化粉煤灰地聚物,建立了飞灰无害化处置方案的生命周期模型。结果表明:人体健康影响是固废基材料固化技术的主要环境影响类别,化工原料是造成环境影响的主要原因,机械力化学激发方式环境影响最小。地聚物材料体系固化技术因大量碱激发剂使用造成的环境影响最大,矿渣-熟料-维生素C固化技术的环境影响最小。因此,调整固废基材料的激发方式并降低激发剂与外加剂的用量是减少人体毒性的必要途径。Industrial solid wastes,such as steel slag,blast furnace slag(BFS),and gasified fly ash,possess inherent reactive properties that can be utilized for detoxifying hazardous waste,thereby facilitating waste remediation through waste-derived solutions.In this study we selected a range of materials,including BFS-based cementitious materials,aluminate cement,BFS-clinker-vitamin C composites,red mud-coal gangue geopolymers,and steel slag-gasified fly ash geopolymers,to develop a life cycle model dedicated to the solidification/stabilization(S/S)of municipal solid waste incineration(MSWI)fly ash.Results indicate that:1)the primary environmental impact of solid waste-based S/S technologies is on human health,with industrial chemical inputs being the main contributors.2)Among the various activation methods examined,mechanochemical activation exhibited the least environmental impact.However,the environmental impact of geopolymer systems,particularly due to the extensive use of alkaline activators,was found to be the most significant.3)In contrast,the BFS-clinker-vitamin C S/S method demonstrated the lowest environmental impact.Therefore,optimizing activation methods for solid waste-based materials and reducing the use of activators and additives are crucial to minimizing toxicological risks to human health.

关 键 词：生活垃圾焚烧飞灰 工业固废 固化稳定化 激发剂 生命周期评价 

分 类 号：X53[环境科学与工程—环境工程]