Chemical Industry and Engineering Progress ›› 2021, Vol. 40 ›› Issue (8): 4473-4485.DOI: 10.16085/j.issn.1000-6613.2020-1776

• Resources and environmental engineering • Previous Articles     Next Articles

A review on hydrothermal treatment for stabilization of heavy metals in fly ash from municipal solid waste incineration

JIANG Xuguang1(), CHEN Qian1, ZHAO Xiaoli2, KONG Litan2   

  1. 1.State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, Zhejiang, China
    2.Power China Hebei Electric Power Engineering Co. , Ltd. , Shijiazhuang 050031, Hebei, China
  • Received:2020-09-04 Online:2021-08-12 Published:2021-08-05
  • Contact: JIANG Xuguang

水热法稳定垃圾焚烧飞灰中重金属研究进展

蒋旭光1(), 陈钱1, 赵晓利2, 孔莉倓2   

  1. 1.浙江大学能源清洁利用国家重点实验室,浙江 杭州 310027
    2.中国电建集团河北省电力勘测设计研究院有限公司,河北 石家庄 050031
  • 通讯作者: 蒋旭光
  • 作者简介:蒋旭光(1965—),男,教授,博士生导师,主要从事废弃物能源化和资源化等方面的研究。E-mail:jiangxg@zju.edu.cn
  • 基金资助:
    国家重点研发计划(2018YFC1901302);国家自然科学基金创新群体(51621005);国家自然科学基金(51676172);浙江大学基本科研业务费专项(2018FZA4010);中国电力建设集团有限公司科技项目(DJ-PTZX-2018-01)

Abstract:

With the development of the social economy and the application of waste incineration, municipal solid waste incineration (MSWI) fly ash, a hazardous waste, is generated in large amounts. The harmless treatment for MSWI fly ash is in urgency, and hydrothermal treatment is one of the most promising harmless treatment technologies. Hydrothermal treatment for stabilization of heavy metals in MSWI fly ash was reviewed in this paper. The physical and chemical properties of MSWI fly ash were firstly described. Then the hydrothermal treatment for MSWI fly ash was systematically introduced and was divided into three categories: traditional hydrothermal method, additive-assisted hydrothermal method and microwave-assisted hydrothermal method .The factors that influence the stabilization of heavy metals were summarized, including reaction time and temperature, alkaline agent and its concentration, solid-liquid ratio, etc. Finally, the optimization approach of the hydrothermal method for heavy metal stabilization in MSWI fly ash, and proposes suggestions for future studies were discussed. It is of great potential to explore the synthesis of aluminosilicate minerals in the hydrothermal process and the fundamental mechanisms of heavy metal stabilization.

Key words: hydrothermal, municipal solid waste incineration, fly ash, heavy metal, aluminosilicate

摘要:

随着社会经济的发展和垃圾焚烧的应用,产生了大量属于危险废物的垃圾焚烧飞灰。其无害化处理技术的研发变得日益迫切,而水热处理技术是最具潜力的垃圾焚烧飞灰无害化技术之一。本文综述了水热法处理垃圾焚烧飞灰稳定重金属的研究进展。首先阐述了垃圾焚烧飞灰的理化性质;然后系统介绍了针对垃圾焚烧飞灰的水热处理方法,将其细分为传统水热法、添加剂辅助水热法和微波水热法,并分别总结了各类水热处理方法影响重金属稳定效果的因素,包括反应时间和温度、碱性激发剂及其浓度、液固比等;最后探讨了水热法稳定垃圾焚烧飞灰中重金属技术的优化途径,为后续的研究提供了研究思路,其中探究水热过程中硅铝酸盐矿物的合成及其稳定重金属机理极具发展潜力。

关键词: 水热, 垃圾焚烧, 飞灰, 重金属, 硅铝酸盐

CLC Number: 

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