当前位置: X-MOL 学术Environ. Sci. Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
From Theory to Practice: Leveraging Chemical Principles To Improve the Performance of Peroxydisulfate-Based In Situ Chemical Oxidation of Organic Contaminants
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2023-12-18 , DOI: 10.1021/acs.est.3c07409
Lenka McGachy 1 , David L Sedlak 2
Affiliation  

In situ chemical oxidation (ISCO) using peroxydisulfate has become more popular in the remediation of soils and shallow groundwater contaminated with organic chemicals. Researchers have studied the chemistry of peroxydisulfate and the oxidative species produced upon its decomposition (i.e., sulfate radical and hydroxyl radical) for over five decades, describing reaction kinetics, mechanisms, and product formation in great detail. However, if this information is to be useful to practitioners seeking to optimize the use of peroxydisulfate in the remediation of hazardous waste sites, the relevant conditions of high oxidant concentrations and the presence of minerals and solutes that affect radical chain reactions must be considered. The objectives of this Review are to provide insights into the chemistry of peroxydisulfate-based ISCO that can enable more efficient operation of these systems and to identify research needed to improve understanding of system performance. By gaining a deeper understanding of the underlying chemistry of these complex systems, it may be possible to improve the design and operation of peroxydisulfate-based ISCO remediation systems.

中文翻译:


从理论到实践:利用化学原理提高过二硫酸盐原位化学氧化有机污染物的性能



使用过二硫酸盐的原位化学氧化(ISCO)在修复受有机化学品污染的土壤和浅层地下水中已变得越来越流行。研究人员对过二硫酸盐的化学性质及其分解时产生的氧化物质(即硫酸根和羟基自由基)进行了五十多年的研究,详细描述了反应动力学、机制和产物形成。然而,如果该信息对寻求优化过二硫酸盐在危险废物场地修复中的使用的从业者有用,则必须考虑高氧化剂浓度以及影响自由基链反应的矿物质和溶质的存在的相关条件。本次综述的目的是深入了解基于过二硫酸盐的 ISCO 的化学性质,使这些系统能够更有效地运行,并确定提高对系统性能的理解所需的研究。通过更深入地了解这些复杂系统的基础化学,有可能改进基于过二硫酸盐的 ISCO 修复系统的设计和操作。
更新日期:2023-12-18
down
wechat
bug