利用电动力增强的渗透性反应屏障修复土壤:挑战和改进

IF 5.5 Q1 ENGINEERING, CHEMICAL
Ali Barati Fardin, Ahmad Jamshidi-Zanjani
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引用次数: 0

摘要

受污染的土壤对生态系统构成严重威胁,以各种有害的方式影响其组成部分。在解决这一问题的方法中,电动修复与渗透性反应屏障(EKR-PRB)相结合在低渗透土壤中尤其有效。这种方法因其可伸缩性、环境效益、成本效率和应用程序灵活性而脱颖而出。反应材料的选择对EKR-PRB的效果有显著影响。本文提供了对EKR-PRB有益的见解,强调了它们的基本机制、定义和原则。本文还全面综述了活性炭(AC)、沸石、零价铁(ZVI)、纳米级零价铁(nZVI)等活性材料和新型材料,探讨了这些材料的局限性和挑战。本研究通过分析渗透性反应屏障(PRB)的耐久性、污染物去除机制和结构设计,在电动力学修复(EKR)的背景下评估其有效性。评估了五种安装配置,以确定不同污染物类型的最佳放置位置,特定设置可显着提高去除效率。进一步分析了成本和可扩展性,发现EKR-PRB在各种低渗透土壤中很有前景,但由于土壤异质性、pH变化和有限的电渗透流,在工程应用中仍然存在挑战。提高去除效率和降低成本的潜力突出了EKR-PRB作为一种可行的修复方法,尽管需要进一步的研究才能大规模应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A critical review on soil remediation using electrokinetic-enhanced permeable reactive barriers: Challenges and enhancements
Contaminated soil poses a critical threat to ecosystems, affecting their components in various detrimental ways. Among the methods for addressing this issue, the combination of electrokinetic remediation and permeable reactive barrier (EKR-PRB) is particularly effective in low-permeability soils. This approach stands out due to its scalability, environmental benefits, cost-efficiency, and flexibility in application. The efficacy of EKR-PRB is significantly influenced by the choice of reactive materials. This paper provided beneficial insights into EKR-PRB, highlighting their fundamental mechanisms, definitions, and principles. It also comprehensively reviewed reactive materials such as activated carbon (AC), zeolite, zero-valent iron (ZVI), nanoscale zero-valent iron (nZVI), and novel materials, exploring the limitations and challenges associated with these materials. This research focused on evaluating the effectiveness of permeable reactive barrier (PRB) by analyzing their durability, mechanisms of contaminant removal, and structural design within the context of electrokinetic remediation (EKR). Five installation configurations were assessed to determine optimal placement for different pollutant types, with specific setups enhancing removal efficiency significantly. Cost and scalability were analyzed further, revealing that while EKR-PRB are promising for various low-permeability soils, challenges in engineering applications remain due to soil heterogeneity, changes in pH, and limited electroosmotic flow. Enhanced removal efficiency and cost reduction potential highlight EKR-PRB as a viable remediation approach, though further research is necessary for large-scale applications.
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来源期刊
Chemical Engineering Journal Advances
Chemical Engineering Journal Advances Engineering-Industrial and Manufacturing Engineering
CiteScore
8.30
自引率
0.00%
发文量
213
审稿时长
26 days
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