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Preferential Destruction of Micropollutants in Water through a Self-Purification Process with Dissolved Organic Carbon Polar Complexation.
Environ Sci Technol. 2022 08 02; 56(15):10849-10856.ES

Abstract

Removing micropollutants in real water is a scientific challenge due to primary dissolved organic carbon (DOC) and high energy consumption of current technologies. Herein, we develop a self-purification process for the preferential destruction of various micropollutants in municipal wastewater, raw drinking water, and ultrapure water with humic acid (HA) driven by the surface microelectronic field of Fe0-FeyCz/Fex-GZIF-8-rGO without any additional input. It was verified that a strongly polar complex consisting of an electron-rich HA/DOC area and an electron-poor micropollutant area was formed between HA/DOC and micropollutants, promoting more electrons of micropollutants in the adsorbed complex to delocalizing to electron-rich Fe species area and be trapped by O2, which resulted in their surface cleavage and hydrolyzation preferentially. The higher micropollutant degradation efficiency observed in real wastewaters was due to the greater complex polarity of DOC. Moreover, the electron transfer process ensured the stability of the surface microelectronic field and continuous water purification. Our findings provide a new insight into low-energy combined-micropollution water treatment.

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Authors+Show Affiliations

Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.

Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.

Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.

Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.

Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.

MeSH

CarbonDissolved Organic MatterHumic SubstancesWaste Disposal, FluidWastewaterWater Pollutants, ChemicalWater Purification

Pub Type(s)

Journal Article

Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

35861715

Citation

Wang, Yumeng, et al. "Preferential Destruction of Micropollutants in Water Through a Self-Purification Process With Dissolved Organic Carbon Polar Complexation." Environmental Science & Technology, vol. 56, no. 15, 2022, pp. 10849-10856.

Wang Y, Zhang P, Lyu L, et al. Preferential Destruction of Micropollutants in Water through a Self-Purification Process with Dissolved Organic Carbon Polar Complexation. Environ Sci Technol. 2022;56(15):10849-10856.

Wang, Y., Zhang, P., Lyu, L., Li, T., & Hu, C. (2022). Preferential Destruction of Micropollutants in Water through a Self-Purification Process with Dissolved Organic Carbon Polar Complexation. Environmental Science & Technology, 56(15), 10849-10856. https://doi.org/10.1021/acs.est.2c03354

Wang Y, et al. Preferential Destruction of Micropollutants in Water Through a Self-Purification Process With Dissolved Organic Carbon Polar Complexation. Environ Sci Technol. 2022 08 2;56(15):10849-10856. PubMed PMID: 35861715.

* Article titles in AMA citation format should be in sentence-case

TY - JOUR T1 - Preferential Destruction of Micropollutants in Water through a Self-Purification Process with Dissolved Organic Carbon Polar Complexation. AU - Wang,Yumeng, AU - Zhang,Peng, AU - Lyu,Lai, AU - Li,Tong, AU - Hu,Chun, Y1 - 2022/07/21/ PY - 2022/7/22/pubmed PY - 2022/8/4/medline PY - 2022/7/21/entrez KW - dissolved organic carbon KW - micropollutant KW - polar complexation KW - preferential destruction KW - self-purification SP - 10849 EP - 10856 JF - Environmental science & technology JO - Environ Sci Technol VL - 56 IS - 15 N2 - Removing micropollutants in real water is a scientific challenge due to primary dissolved organic carbon (DOC) and high energy consumption of current technologies. Herein, we develop a self-purification process for the preferential destruction of various micropollutants in municipal wastewater, raw drinking water, and ultrapure water with humic acid (HA) driven by the surface microelectronic field of Fe0-FeyCz/Fex-GZIF-8-rGO without any additional input. It was verified that a strongly polar complex consisting of an electron-rich HA/DOC area and an electron-poor micropollutant area was formed between HA/DOC and micropollutants, promoting more electrons of micropollutants in the adsorbed complex to delocalizing to electron-rich Fe species area and be trapped by O2, which resulted in their surface cleavage and hydrolyzation preferentially. The higher micropollutant degradation efficiency observed in real wastewaters was due to the greater complex polarity of DOC. Moreover, the electron transfer process ensured the stability of the surface microelectronic field and continuous water purification. Our findings provide a new insight into low-energy combined-micropollution water treatment. SN - 1520-5851 UR - https://www.unboundmedicine.com/medline/citation/35861715/Preferential_Destruction_of_Micropollutants_in_Water_through_a_Self_Purification_Process_with_Dissolved_Organic_Carbon_Polar_Complexation_ DB - PRIME DP - Unbound Medicine ER -