Synergistic remediation of landfill-mined soil-like materials using advanced oxidation and stabilization: Performance and mechanistic insights
文献类型：期刊论文
| 作者 | Qin, Zhifa8,9; Lue, Xilin7,9; Liu, Lei5,6,8; Li, Jiangshan5,6,8; Li, Yuan4; Xie, Wengang3; Zuo, Shenghao2; Jin, Jiaxu1 |
| 刊名 | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
 |
| 出版日期 | 2025-06-01 |
| 卷号 | 198页码:14 |
| 关键词 | Municipal solid waste landfill Soil-like material Solidification/stabilization Mechanical property Organic matter Heavy metal |
| ISSN号 | 0957-5820 |
| DOI | 10.1016/j.psep.2025.107162 |
| 英文摘要 | The remediation and management of old municipal solid waste (MSW) landfills are pivotal for advancing urban ecological sustainability. This study aims to systematically assess the mechanical properties, environmental behaviors, and synergistic mechanisms of remediated landfill-mined soil-like material (SLM) through advanced oxidation and stabilization processes. The results indicate that synergistic remediation with advanced oxidation and stabilization processes significantly increased the mechanical strength of stabilized SLM to over 0.6 MPa, and reduced the organic content by about 20 %, making it suitable for reuse in geotechnical engineering. The choice of oxidizing agents markedly affected the mechanical properties of stabilized SLM; for example, the application of sodium percarbonate in conjunction with stabilized materials further enhances the strength by simultaneously promoting the pozzolanic reaction. Furthermore, the heavy metal leaching behaviors of the stabilized SLM were found to be environmentally safe. The enhanced performance of stabilized SLM is primarily attributed to the synergistic effects of oxidation and pozzolanic reactions. The advanced oxidation process decreases organic matter content and increases its stability by reducing the proportion of readily decomposable O-alkyl C. Concurrently, pozzolanic reactions produce ettringite crystals and C-(A)-S-H gels, which not only fill micropores and improve particle bonding but also aid in heavy metal immobilization through surface adsorption, complexation, and physical encapsulation. These insights provide a comprehensive understanding of the remediation processes and resource recovery potential of SLM from old MSW landfills. |
| 资助项目 | National Key Research and Develop-ment Program of China[2023YFC3707802] ; National Nat-ural Science Foundation of China[U20A20320] ; National Nat-ural Science Foundation of China[42177163] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001473173200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35815]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Lei |
| 作者单位 | 1.Liaoning Tech Univ, Sch Civil Engn, Fuxin 123000, Peoples R China 2.Zhengzhou Univ, Sch Water Conservancy & Transportat, Zhengzhou 450001, Peoples R China 3.Cent & Southern China Municipal Engn Design & Res, Wuhan 430010, Peoples R China 4.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China 5.Hubei Prov Key Lab Contaminated Sludge & Soil Sci, Wuhan 430071, Peoples R China 6.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Wuhan 430071, Peoples R China 7.Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China 8.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn Safety, Wuhan 430071, Peoples R China 9.Tongji Univ, Coll Civil Engn, Dept Geotech Engn, Shanghai 200092, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin, Zhifa,Lue, Xilin,Liu, Lei,et al. Synergistic remediation of landfill-mined soil-like materials using advanced oxidation and stabilization: Performance and mechanistic insights[J]. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,2025,198:14. |
| APA | Qin, Zhifa.,Lue, Xilin.,Liu, Lei.,Li, Jiangshan.,Li, Yuan.,...&Jin, Jiaxu.(2025).Synergistic remediation of landfill-mined soil-like materials using advanced oxidation and stabilization: Performance and mechanistic insights.PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,198,14. |
| MLA | Qin, Zhifa,et al."Synergistic remediation of landfill-mined soil-like materials using advanced oxidation and stabilization: Performance and mechanistic insights".PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 198(2025):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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