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Gu C, Li J, Zhou W, An J, Tian L, Xiong F, Fei W, Feng Y, Ma J. Abiotic natural attenuation of 1,2,3-trichloropropane by natural magnetite under O 2 perturbation. Chemosphere 2024; 357:142040. [PMID: 38615949 DOI: 10.1016/j.chemosphere.2024.142040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/10/2024] [Accepted: 04/12/2024] [Indexed: 04/16/2024]
Abstract
1,2,3-Trichloropropane (TCP) is an emerging groundwater pollutant, but there is a lack of reported studies on the abiotic natural attenuation of TCP by iron minerals. Furthermore, perturbation by O2 is common in the shallow subsurface by both natural and artificial processes. In this study, natural magnetite was selected as the reactive iron mineral to investigate its role in the degradation of TCP under O2 perturbation. The results indicated that the mineral structural Fe(II) on magnetite reacted with dissolved oxygen to generate O2-· and HO·. Both O2-· and HO· contributed to TCP degradation, with O2-· playing a more important role. After 56 days of reaction, 66.7% of TCP was completely dechlorinated. This study revealed that higher magnetite concentrations, smaller magnetite particle sizes, and lower initial TCP concentrations favored TCP degradation. The presence of <10 mg/L natural organic matter (NOM) did not affect TCP degradation. These findings significantly advance our understanding of the abiotic natural attenuation mechanisms facilitated by iron minerals under O2 perturbation, providing crucial insights for the study of natural attenuation.
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Affiliation(s)
- Chunyun Gu
- State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Jiabin Li
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing, 100089, China
| | - Wei Zhou
- State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Jiayi An
- State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Liting Tian
- State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Feng Xiong
- State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Wenbo Fei
- State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Yangfan Feng
- State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Jie Ma
- State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China.
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Yin W, Li Y, Wu J, Chen G, Jiang G, Li P, Gu J, Liang H, Liu C. Enhanced Cr(VI) removal from groundwater by Fe 0-H 2O system with bio-amended iron corrosion. J Hazard Mater 2017; 332:42-50. [PMID: 28279872 DOI: 10.1016/j.jhazmat.2017.02.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 02/20/2017] [Accepted: 02/24/2017] [Indexed: 06/06/2023]
Abstract
A one-pot bio-iron system was established to investigate synergetic abiotic and biotic effects between iron and microorganisms on Cr(VI) removal. More diverse iron corrosion and reactive solids, such as green rusts, lepidocrocite and magnetite were found in the bio-iron system than in the Fe0-H2O system, leading to 4.3 times higher Cr(VI) removal efficiency in the bio-iron system than in the Fe0-H2O system. The cycling experiment also showed that the Cr(VI) removal capacity of Fe0 in the bio-iron system was 12.4 times higher than that in the Fe0-H2O system. A 62days of life-span could be achieved in the bio-iron system, while the Fe0-H2O system lost its efficacy after 30days. Enhanced effects of extra Fe2+ on Cr(VI) removal was observed, largely contributed to the adsorbed Fe2+ on iron surface, which could function as an extra reductant for Cr(VI) and promote the electron transfer on the solid phase. The results also showed that the reduction of Cr(VI) by microorganisms was insignificant, indicating the adsorption/co-precipitation of Cr by iron oxides on iron surface was responsible for the overall Cr(VI) removal. Our study demonstrated that the bio-amended iron corrosion could improve the performance of Fe0 for Cr(VI) removal from groundwater.
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Affiliation(s)
- Weizhao Yin
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, State Key Laboratory of Pulp and Paper Engineering, The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; Department of Plant and Environmental Sciences, Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C DK-1871, Denmark
| | - Yongtao Li
- School of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, PR China
| | - Jinhua Wu
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, State Key Laboratory of Pulp and Paper Engineering, The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China.
| | - Guocai Chen
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, State Key Laboratory of Pulp and Paper Engineering, The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Gangbiao Jiang
- School of Materials and Energy, South China Agricultural University, Guangzhou 510642, PR China
| | - Ping Li
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, State Key Laboratory of Pulp and Paper Engineering, The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Jingjing Gu
- Water Purification Institute of Logistics Department of Guangzhou Military Region, Guangzhou 510500, PR China
| | - Hao Liang
- Water Purification Institute of Logistics Department of Guangzhou Military Region, Guangzhou 510500, PR China
| | - Chuansheng Liu
- Water Purification Institute of Logistics Department of Guangzhou Military Region, Guangzhou 510500, PR China
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