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Li M, Zhang X, Zhang Y, Xu X, Liu Y, Zhang Y, He Z, Wang J, Liang Y. Effect of interaction between dissolved organic matter and iron/manganese (hydrogen) oxides on the degradation of organic pollutants by in-situ advanced oxidation techniques. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170351. [PMID: 38307288 DOI: 10.1016/j.scitotenv.2024.170351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 12/26/2023] [Accepted: 01/19/2024] [Indexed: 02/04/2024]
Abstract
Iron and manganese (hydrogen) oxides (IMHOs) exhibit excellent redox capabilities for environmental pollutants and are commonly used in situ chemical oxidation (ISCO) technologies for the degradation of organic pollutants. However, the coexisting dissolved organic matter (DOMs) in surface environments would influence the degradation behavior and fate of organic pollutants in IMHOs-based ISCO. This review has summarized the interactions and mechanisms between DOMs and IMHOs, as well as the properties of DOM-IMHOs complexes. Importantly, the promotion or inhibition impact of DOM was discussed from three perspectives. First, the presence of DOMs may hinder the accessibility of active sites on IMHOs, thus reducing their efficiency in degrading organic pollutants. The formation of compounds between DOMs and IMHOs alters their stability and activity in the degradation process. Second, the presence of DOMs may also affect the generation and transport of active species, thereby influencing the oxidative degradation process of organic pollutants. Third, specific components within DOMs also participate and affect the degradation pathways and rates. A comprehensive understanding of the interaction between DOMs and IMHOs helps to better understand and predict the degradation process of organic pollutants mediated by IMHOs in real environmental conditions and contributes to the further development and application of IMHO-mediated ISCO technology.
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Affiliation(s)
- Mengke Li
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan 411105, China
| | - Xin Zhang
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan 411105, China
| | - Yan Zhang
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan 411105, China
| | - Xin Xu
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan 411105, China
| | - Yun Liu
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan 411105, China.
| | - Yaoyao Zhang
- Chinese Academy of Geological Sciences, Beijing 100037, China.
| | - Zhiguo He
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Jieyi Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Yuting Liang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
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