新澳门游戏网站入口 院报 ›› 2025, Vol. 42 ›› Issue (1): 64-73.DOI: 10.11988/ckyyb.20231092

• 水土保持与生态修复 • 上一篇    下一篇

磷矿固废污染物释放与扩散研究现状及展望

陈霞1,2(), 周显1,2, 邓闪闪1,2(), 彭子凌2, 范泽宇2, 高卓凡2, 鲁麒2   

  1. 1 江西省水利科学院 水工安全工程技术研究中心, 南昌 330029
    2 新澳门游戏网站入口 水利部水工程安全与病害防治工程技术研究中心, 武汉 430010
  • 收稿日期:2023-10-09 修回日期:2024-01-15 出版日期:2025-01-01 发布日期:2025-01-01
  • 通信作者:
    邓闪闪(1993-),女,山东菏泽人,工程师,博士,主要从事新污染物控制研究。E-mail:
  • 作者简介:

    陈霞(1983-),女,湖北荆州人,正高级工程师,博士,主要从事固体废弃物处置及资源化利用研究。E-mail:

  • 基金资助:
    国家自然科学基金项目(51979011); 国家自然科学基金项目(52200143); 中央级公益性科研院所基本业务费项目(CKSF2023303/CL); 中央级公益性科研院所基本业务费项目(CKSF2023302/CL); 中央级公益性科研院所基本业务费项目(CKSF2023314/CL); 江西省水利厅重点项目(202325ZDKT23); 江西省水利科学院开放基金项目(2021SKSG04)

State-of-Art and Prospect of Researches on Release and Diffusion of Phosphate Solid Wastes

CHEN Xia1,2(), ZHOU Xian1,2, DENG Shan-shan1,2(), PENG Zi-ling2, FAN Ze-yu2, GAO Zhuo-fan2, LU Qi2   

  1. 1 Research Center on Hydraulic Safety Engineering Technology,Jiangxi Academy of Water Science and Enginee-ring, Nanchang 330029, China
    2 Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources, Changjiang River Scientific Research Institute, Wuhan 430010, China
  • Received:2023-10-09 Revised:2024-01-15 Published:2025-01-01 Online:2025-01-01

摘要:

磷矿固废堆场的渗滤液是污染物释放的主要来源,结合我国存量与增量磷矿固废堆存现状及环境影响特点,从磷矿固废渗滤液组成、扩散与迁移等方面,阐述了我国磷矿固废的污染物释放与扩散研究现状。磷矿固废渗滤液污染物含量高、磷石膏pH值较低、荷载高等因素可能导致防渗材料的渗透系数增加,应履行更加严格的污染物浸出试验和防渗层设置要求。现阶段有关磷矿固体废弃物渗滤液和扩散的研究与堆场所处真实环境条件存在差异,后续研究应结合磷矿固废堆场真实环境及渗滤液特点,建议综合考虑堆场自身及环境温度、降雨入渗及上部盖重产生的有效应力等的影响,结合热-湿-力(THM)淋滤试验装置开展多场耦合条件下磷矿固废渗滤液污染物的释放与扩散机理研究,为磷矿固废堆场渗滤液的预防与控制奠定理论基础。

关键词: 磷矿固废, 污染物, 释放, 扩散, 多场耦合

Abstract:

The diffusion of leachates from phosphate solid wastes is a major source of contaminants. Based on the existing and increment of phosphate solid waste in China as well as its environmental impacts, this study reviews the current status of researches on phosphate solid waste accumulation in China focusing on the composition, diffusion, and migration of leachates from phosphate solid wastes. More stringent requirements for leaching experiments and the design of impermeable barriers are essential as the permeability coefficient of impermeable materials may increase due to high pollutant concentration in leachate, low pH value of phosphogypsum, and large overburden pressure. Current researches on leachate release and diffusion often fail to replicate actual landfill conditions. Future studies should integrate field-specific parameters such as ambient temperature, rainfall infiltration, and effective stress from overburden weight. Thermal-humid-mechanical (THM) leaching test apparatus is also recommended for multifield coupling investigation. This approach will provide a more comprehensive theoretical understanding of leachate prevention and control in phosphate waste landfills.

Key words: phosphate solid wastes, pollutants, release, diffusion, multi field coupling

中图分类号: 

Baidu
map