垃圾渗滤液的过硫酸盐高级氧化深度处理技术研究进展

王大伟; 李滢滢; 蒋一兰; 陈琳; 高珂依; 熊怡然

doi:10.13205/j.hjgc.202503004

垃圾渗滤液的过硫酸盐高级氧化深度处理技术研究进展

doi: 10.13205/j.hjgc.202503004

王大伟^1,2, ,,
李滢滢^1,2,
蒋一兰^1,2,
陈琳^1,2,
高珂依^1,2,
熊怡然^1,2

1. 河海大学环境学院, 南京 210098;
2. 河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 南京 210098

基金项目:

江苏省基础研究计划自然科学基金面上项目“基于高频交变磁场/铁基材料的混凝-过硫酸盐高级氧化体系对垃圾渗滤液的耦合处理机制研究”（BK20242057）

详细信息

作者简介:
王大伟（1989-），男，教授，主要研究方向为水污染控制。dawei.wang@hhu.edu.cn

通讯作者:
王大伟(1989-),男,教授,主要研究方向为水污染控制。dawei.wang@hhu.edu.cn

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- 文章访问数: 171
- HTML全文浏览量: 39
- PDF下载量: 10
- 被引次数: 0
出版历程
- 收稿日期: 2024-12-24
- 录用日期: 2024-12-30
- 修回日期: 2024-12-27
- 网络出版日期: 2025-06-07
- 刊出日期: 2025-03-01

Research progress on advanced treatment technology based on persulfate oxidation process for landfill leachate

WANG Dawei^{1,2
, ,},
LI Yingying^1,2,
JIANG Yilan^1,2,
CHEN Lin^1,2,
GAO Keyi^1,2,
XIONG Yiran^1,2

1. College of Environment, Hohai University, Nanjing 210098, China;
2. Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, Hohai University, Nanjing 210098, China

摘要

摘要: 垃圾渗滤液是一种同时含有高有机负荷、高浓度氨氮、有害重金属离子、新持久性有机污染物的复杂废水，其产生量呈逐年攀升趋势，对生态系统和人类健康构成持续性威胁。传统生物法和物理法的发展无法满足复杂的水质组分和日益提升的处理需求，因此寻求高效的垃圾渗滤液处理方式迫在眉睫。近年来，过硫酸盐高级氧化工艺因其对有机污染物氧化速率快、矿化程度高等优势，以及其耦合工艺在抗干扰性提升的基础上可实现对氨氮同步去除等特点，在垃圾渗滤液处理领域展现出巨大潜力。阐明了过硫酸盐高级氧化过程的激活方式和对垃圾渗滤液的处理性能与作用机制，具体分析了硫酸根自由基、羟基自由基主导的自由基氧化路径，以及单线态氧作用的非自由基氧化途径的贡献，系统总结了基于过硫酸盐高级氧化体系及其耦合系统用于垃圾渗滤液处理的研究现状，深入讨论了基于过硫酸盐高级氧化工艺的垃圾渗滤液处理方式所面临的挑战和未来的研究方向，旨在为垃圾渗滤液的过硫酸盐高级氧化深度处理技术的发展提供支持。
- 垃圾渗滤液 /
- 高级氧化技术 /
- 过硫酸盐 /
- 自由基路径 /
- 非自由基路径
Abstract: Landfill leachate represents a complex wastewater matrix characterized by elevated organic loads， high concentrations of ammonia nitrogen， toxic heavy metal ions， and emerging persistent organic pollutants. Its generation is increasing annually， posing an ongoing threat to both ecosystems and human health. The advancement of conventional biological and physical treatment methods is hindered by the intricate components of the wastewater and the rising demands for effective treatment solutions. Due to the low hydraulic load， it is difficult for biological methods to achieve the expected results， when dealing with aged landfill leachate containing toxic and persistent organic pollutants. Physical methods are less affected by water quality fluctuations， but coagulation， adsorption， and membrane treatment technologies can only achieve the transfer of pollutants and auxiliary secondary treatment is still required. Therefore， there is an urgent need to identify efficient strategies for landfill leachate treatment. Recent studies have highlighted that advanced oxidation processes utilizing persulfate exhibit rapid oxidation rates for organic contaminants along with a significant degree of mineralization. Furthermore， coupled processes leveraging enhanced resistance to interference have achieved simultaneous removal of ammonia nitrogen， showcasing substantial potential in the domain of landfill leachate management. The advanced oxidation process based on persulfate decomposes the peroxide bonds in persulfate molecules through energy and electron transfer reactions， generating a rich variety of reactive oxygen species with high oxidation potential in situ. Through free radical pathways， it achieves efficient degradation of pollutants and has higher selectivity and oxidation efficiency for pollutants containing unsaturated bonds or aromatic rings， expanding the applicability range of pH. In addition， it can also synergistically degrade pollutants through non-free radical pathways， with stronger resistance to interference from water quality components. PS-AOPs are reported for the treatment of landfill leachate with high activity， high stability， low secondary pollution， and a wide range of applications， demonstrating the potential of being an ideal landfill leachate advanced treatment technology. This paper elucidated the activation mechanisms underlying persulfate-based advanced oxidation processes as well as their performance and operational mechanisms in landfill leachate treatment. Specifically， it examined the contributions from free radical oxidation pathways predominantly driven by sulfate radicals and hydroxyl radicals alongside non-free radical pathways mediated by singlet oxygen. A comprehensive overview of current research on persulfate-based advanced oxidation systems and their coupled configurations for landfill leachate treatment was systematically presented herein. In addition， the degradation of pollutants and the generation of by-products， which pose a secondary pollution risk to the system and environment in the advanced treatment process of landfill leachate， were discussed. Finally， this study discussed the existing challenges and prospective research directions pertaining to persulfate-driven approaches for landfill leachate treatment， which may provide support to the development of advanced treatment technology based on persulfate related advanced oxidation process for landfill leachate.
- landfill leachate /
- advanced oxidation process /
- persulfate /
- free radical pathway /
- non-free radical pathway

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参考文献(91)

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