Degradation and regeneration inhibition of PCDD/Fs in incineration fly ash by low-temperature thermal technology

被引：3
作者：
Gao, Chenqi [1 ]
Long, Jisheng [2 ]
Yue, Yang [1 ]
Li, Bin [2 ]
Huang, Yiru [2 ]
Wang, Yao [3 ]
Zhang, Jia [1 ]
Zhang, Lingen [1 ]
Qian, Guangren [1 ]
机构：
[1] Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China
[2] Shanghai SUS Environm Co LTD, Shanghai 201703, Peoples R China
[3] Univ Shanghai Sci & Technol, Dept Environm & Architecture, Shanghai 200093, Peoples R China
来源：
JOURNAL OF HAZARDOUS MATERIALS | 2024年 / 477卷
关键词：
Incineration fly ash; PCDD/Fs; Low-temperature thermal degradation; Detoxification mechanism; Regeneration inhibition; MUNICIPAL SOLID-WASTE; DIBENZO-P-DIOXINS; DE-NOVO FORMATION; MEDICAL WASTE; ORGANIC POLLUTANTS; HEAVY-METALS; MECHANOCHEMICAL TREATMENT; HYDROTHERMAL DEGRADATION; CATALYTIC DECOMPOSITION; POSTCOMBUSTION ZONE;
D O I：
10.1016/j.jhazmat.2024.135315
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Low-temperature thermal degradation of PCDD/Fs for incineration fly ash (IFA), as a novel and emerging technology approach, offers promising features of high degradation efficiency and low energy consumption, presenting enormous potential for application in IFA resource utilization processes. This review summarizes the concentrations, congener distributions, and heterogeneity characteristics of PCDD/Fs in IFA from municipal, medical, and hazardous waste incineration. A comparative analysis of five PCDD/Fs degradation technologies is conducted regarding their characteristics, industrial potential, and applicability. From the perspective of low- temperature degradation mechanisms, pathways to enhance PCDD/Fs degradation efficiency and inhibit their regeneration reactions are discussed in detail. Finally, the challenges to achieve low-temperature degradation of PCDD/Fs for IFA with high-efficiency are prospected. This review seeks to explore new opportunities for the detoxification and resource utilization of IFA by implementing more efficient and viable low-temperature degradation technologies.
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页数：20
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