生活垃圾焚烧飞灰二噁英控制技术研究进展

王肇嘉; 秦玉; 顾军; 蔡文涛; 朱延臣; 李强

doi:10.13205/j.hjgc.202110016

生活垃圾焚烧飞灰二噁英控制技术研究进展

doi: 10.13205/j.hjgc.202110016

北京建筑材料科学研究总院有限公司固废资源化利用与节能建材国家重点实验室, 北京 100041

基金项目:

天津市科委基金（20YDLZSN00100）。

详细信息

作者简介:
王肇嘉(1963-),男,教授级高工,主要研究方向为固体废物资源化利用及大气污染控制技术。wangzhaojia@bbmg.com.con

通讯作者:
秦玉(1986-),女,博士,主要研究方向为固体废物资源化利用及大气污染控制技术。qinyu@bbma.com.cn

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出版历程
- 收稿日期: 2020-11-12
- 网络出版日期: 2022-01-26

RESEARCH PROGRESS OF DIOXIN CONTROL TECHNOLOGIES IN FLY ASH FROM DOMESTIC WASTE INCINERATION

State Key Laboratory of Solid Waste Utilization and Energy-Saving Building Materials, Beijing Building Materials Research Institute Co., Ltd, Beijing 100041, China

摘要

摘要: 生活垃圾焚烧飞灰含有二噁英等有机物和Cr、Hg等重金属，是高度危险的固体废物，已成为二噁英污染的主要来源之一。针对飞灰中二噁英的不同解毒技术研究现状，系统阐述了近年来不同技术的原理、研究现状及发展趋势等，指出具有较大工业化应用前景的是水泥窑协同处置和低温热解技术。水泥窑协同处置技术可实现二噁英高效降解，且无二次污染物产生，局限性是该技术需要依托熟料生产线，飞灰水洗预处理投资运行成本相对较高；低温热解技术可高效实现飞灰中二噁英的脱除，局限性是存在二噁英从固相转移至气相，通常集成其他气相二噁英降解技术，如催化氧化等技术，可实现气相二噁英的高效降解，能耗及投资成本相对较低。并对飞灰中二噁英未来的降解技术和发展方向进行了展望，旨在为飞灰二噁英解毒技术的实用研究提供理论研究基础。
- 生活垃圾焚烧飞灰 /
- 二噁英 /
- 高温处置 /
- 低温热解 /
- 集成技术
Abstract: Fly ash from domestic waste incineration contains organic matters such as dioxins, and heavy metals such as chromium and mercury. It is a highly hazardous solid waste, which has become one of the main sources of dioxin. This article focuses on the recent research status of different detoxification technologies of dioxin in fly ash, and systematically elaborates the technical principles, research status and development trend of different technologies. Cement kiln co-processing technology and low-temperature pyrolysis are the promising industrial applications technologies. Specifically, cement kiln co-processing technology can achieve high-efficiency degradation of dioxins without secondary pollutants. The limitation is that the technology needs to rely on the clinker production line, and the investment and operation cost of fly ash water washing pretreatment is relatively high. Low-temperature pyrolysis technology can be achieved efficiently in removal of dioxins in fly ash, while the dioxins may transfer from the solid phase to the gas phase. Usually, low-temperature pyrolysis technology is combined with other gas phase dioxin degradation technologies such as catalytic oxidation technology, which can achieve efficient gas phase dioxin degradation. This article aims to provide reference for the practical research of detoxification technology of dioxin in fly ash, and prospect the future degradation technology and development direction of dioxin in fly ash.
- domestic waste incineration fly ash /
- dioxins /
- high temperature disposal /
- low temperature pyrolysis /
- integrated technology

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