基于固体废物的稳定剂的审查,用于修复重金属共同污染的土壤:应用和挑战
Yuliang Zhang1, Pingfeng Fu2, Wen Ni2
1School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China.
The Science of the total environment
|February 8, 2024
概括
固体废物稳定剂 (SWBS) 通过各种机制有效地修复重金属 (HM) 污染的土壤. 长期稳定性和老化效应需要进一步研究,以便在实践中应用.
科学领域:
- 环境科学 环境科学
- 地质化学 地质化学
- 土壤科学 土壤科学
背景情况:
- 土壤的重金属 (HM) 和金属化物共同污染对环境和健康构成重大风险.
- 基于固体废物的稳定剂 (SWBS) 越来越多地因其在土壤整治方面的潜力而得到认可.
- 需要对最近的文献 (2010-2023) 进行全面的审查,以评估SWBS的疗效.
研究的目的:
- 系统地审查用于HM污染土壤修复的不同类型的SWBS.
- 评估SWBS在现场应用中的技术可行性和经济效益.
- 总结修复评估方法和SWBS对土壤特性的影响.
主要方法:
- 2010-2023年对HM污染土壤SWBS研究的文献综述.
- 实验室和实地实验结果的分析.
- 评估各种SWBS的优缺点,技术可行性和经济效益.
主要成果:
- 各种固体废物 (钢渣,煤灰,红泥,污水污泥) 可以通过吸附,复合,沉,离子交换和其他过程稳定HM.
- 由于其大表面积,多孔结构和高反应性,SWBS证明了其有效性.
- 该审查介绍了SWBS的优缺点,技术可行性和经济效益.
结论:
- 通过多种机制,SWBS提供了一种有效的方法来稳定受污染的土壤中的HM.
- 环境影响和长期有效性,特别是土壤/SWBS老化,仍然是实际实施的关键挑战.
- 未来的研究应该集中在SWBS修改和综合长期稳定性评估方法上.
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