新澳门游戏网站入口 院报 ›› 2025, Vol. 42 ›› Issue (1): 208-214.DOI: 10.11988/ckyyb.20231134

• 水工结构与材料 • 上一篇    

固废基材料固化垃圾焚烧飞灰生命周期评价

周永门1(), 周显1,2(), 陈霞2, 范泽宇2, 高卓凡2, 邓闪闪2, 鲁麒2, 万沙2   

  1. 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 新澳门游戏网站入口 水利部水工程安全与病害防治工程技术研究中心,武汉 430010
  • 收稿日期:2023-10-20 修回日期:2023-12-12 出版日期:2025-01-01 发布日期:2025-01-01
  • 通信作者:
    周显(1988-),男,湖北黄冈人,高级工程师,博士,主要从事生态环境材料研发。E-mail:
  • 作者简介:

    周永门(1972-),男,江西安福人,高级工程师,主要从事水工材料试验研究。E-mail:

  • 基金资助:
    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)

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

ZHOU Yong-men1(), ZHOU Xian1,2(), CHEN Xia2, FAN Ze-yu2, GAO Zhuo-fan2, DENG Shan-shan2, LU Qi2, WAN Sha2   

  1. 1 Research Center on Hydraulic Structure Safety Engineering Technology, Jiangxi Academy of Water Science and Engineering, Nanchang 330029, China
    2 Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources, Changjiang River Scientific Research Institute, Wuhan 430010, China
  • Received:2023-10-20 Revised:2023-12-12 Published:2025-01-01 Online:2025-01-01

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。

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

Abstract:

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.

Key words: municipal solid waste incineration fly ash, industrial solid waste, solidification/stabilization, activation, life cycle assessment

中图分类号: 

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