State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China; Zhejiang University Qingshanhu Energy Research Center, Lina, Hangzhou, PR China.
State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China; Zhejiang University Qingshanhu Energy Research Center, Lina, Hangzhou, PR China.
Environ Pollut. 2022 Oct 15;311:119878. doi: 10.1016/j.envpol.2022.119878. Epub 2022 Aug 6.
Incineration has gradually become the most effective way to deal with MSW due to its obvious volume reduction and weight reduction effects. However, since heavy metals and organic pollutants carried by municipal solid waste incinerator fly ash (MSWI FA) pose a serious threat to the ecological environment and human health, they need to be handled carefully. In this study, the current status of MSWI FA disposal was first reviewed, and the harmless and resourceful disposal technologies of heavy metals and organic pollutants in MSWI FA are summarized as well. A summary of the advantages and disadvantages of each technology, including sintering, melting/vitrification, hydrothermal treatment, mechanochemistry, solidification/stabilization of MSWI FA, is compared. Finally, the research work that needs to be strengthened in the future (such as codisposal of multiple wastes, long-term stability research of disposal products, etc.) was proposed. Through comprehensive analysis, some reasonable and feasible suggestions were provided for the effective and safe disposal of MSWI FA in the future.
焚烧由于其明显的减容和减重效果，已逐渐成为处理城市生活垃圾的最有效方法。然而，由于城市生活垃圾焚烧炉飞灰（MSWI FA）中携带的重金属和有机污染物对生态环境和人体健康构成严重威胁，因此需要谨慎处理。本研究首先综述了 MSWI FA 的处置现状，并总结了 MSWI FA 中重金属和有机污染物的无害化和资源化处置技术。对包括烧结、熔融/玻璃化、水热处理、机械化学、MSWI FA 的固化/稳定化在内的各项技术的优缺点进行了对比总结。最后，提出了未来需要加强的研究工作（如多种废物共处置、处置产物长期稳定性研究等）。通过综合分析，为今后 MSWI FA 的有效、安全处置提供了一些合理可行的建议。
