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

WANG Zhao-jia; QIN Yu; GU Jun; CAI Wen-tao; ZHU Yan-chen; LI Qiang

doi:10.13205/j.hjgc.202110016

Volume 39 Issue 10

Jan. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(10): 116-123

WANG Zhao-jia, QIN Yu, GU Jun, CAI Wen-tao, ZHU Yan-chen, LI Qiang. RESEARCH PROGRESS OF DIOXIN CONTROL TECHNOLOGIES IN FLY ASH FROM DOMESTIC WASTE INCINERATION[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(10): 116-123. doi: 10.13205/j.hjgc.202110016

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WANG Zhao-jia, QIN Yu, GU Jun, CAI Wen-tao, ZHU Yan-chen, LI Qiang. RESEARCH PROGRESS OF DIOXIN CONTROL TECHNOLOGIES IN FLY ASH FROM DOMESTIC WASTE INCINERATION[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(10): 116-123. doi: 10.13205/j.hjgc.202110016

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

doi: 10.13205/j.hjgc.202110016

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

Received Date: 2020-11-12
Available Online: 2022-01-26

Abstract

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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References(47)

References

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