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Biochar supported CuO composites used as an efficient peroxymonosulfate activator for highly saline organic wastewater treatment.
Sci Total Environ. 2020 Jun 15; 721:137764.ST

Abstract

Biochar supported copper oxide composite (BC-CuO) was synthesized and attempted to activate peroxymonosulfate (PMS) for treating highly saline (100-400 mM) wastewater. In the BC-CuO/PMS system, rapid removals of Methylene Blue (MB), Acid Orange 7, Rhodamine B, Atrazine and Ciprofloxacin from the highly saline system were observed within 30 min, attaining a high efficiency of 99.68%, 100%, 100%, 100% and 78.27%, respectively. Meanwhile, the BC-CuO/PMS can remove >88.61% of MB in other salt systems containing one or more salt components and 68.43% of COD from landfill leachate. Experimental results confirmed that sulfate radical (SO4▪-), hydroxyl radical (OH) and singlet oxygen (1O2) all contributed to the pollutants degradation, but 1O2 was dominated in highly saline systems. On the basis of the characterization and analysis data, possible activation mechanisms of the oxygenated functional groups of biochar and hydroxylation of CuO surface accelerating the generation of 1O2 were proposed. BC-CuO activating PMS is a promising technique for the removal of organic pollutants from highly saline wastewater or complex background.

Authors+Show Affiliations

Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, No. 38, Tongyan Road, Jinnan District, Tianjin 300350, China.Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, No. 38, Tongyan Road, Jinnan District, Tianjin 300350, China.Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, No. 38, Tongyan Road, Jinnan District, Tianjin 300350, China. Electronic address: huangwenli@nankai.edu.cn.Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, No. 31, Fukang Road, Nankai District, Tianjin 300191, China.College of Ecology and Environment, Hainan University, No. 58. Renmin Road, Meilan District, Haikou 570228, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32172118

Citation

Li, Zhendong, et al. "Biochar Supported CuO Composites Used as an Efficient Peroxymonosulfate Activator for Highly Saline Organic Wastewater Treatment." The Science of the Total Environment, vol. 721, 2020, p. 137764.
Li Z, Liu D, Huang W, et al. Biochar supported CuO composites used as an efficient peroxymonosulfate activator for highly saline organic wastewater treatment. Sci Total Environ. 2020;721:137764.
Li, Z., Liu, D., Huang, W., Wei, X., & Huang, W. (2020). Biochar supported CuO composites used as an efficient peroxymonosulfate activator for highly saline organic wastewater treatment. The Science of the Total Environment, 721, 137764. https://doi.org/10.1016/j.scitotenv.2020.137764
Li Z, et al. Biochar Supported CuO Composites Used as an Efficient Peroxymonosulfate Activator for Highly Saline Organic Wastewater Treatment. Sci Total Environ. 2020 Jun 15;721:137764. PubMed PMID: 32172118.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biochar supported CuO composites used as an efficient peroxymonosulfate activator for highly saline organic wastewater treatment. AU - Li,Zhendong, AU - Liu,Dongfang, AU - Huang,Wenli, AU - Wei,Xiaocheng, AU - Huang,Weiwei, Y1 - 2020/03/06/ PY - 2019/12/18/received PY - 2020/02/27/revised PY - 2020/03/04/accepted PY - 2020/3/17/pubmed PY - 2020/7/11/medline PY - 2020/3/16/entrez KW - BC-CuO KW - Methylene blue KW - PMS KW - Saline wastewater KW - Singlet oxygen SP - 137764 EP - 137764 JF - The Science of the total environment JO - Sci. Total Environ. VL - 721 N2 - Biochar supported copper oxide composite (BC-CuO) was synthesized and attempted to activate peroxymonosulfate (PMS) for treating highly saline (100-400 mM) wastewater. In the BC-CuO/PMS system, rapid removals of Methylene Blue (MB), Acid Orange 7, Rhodamine B, Atrazine and Ciprofloxacin from the highly saline system were observed within 30 min, attaining a high efficiency of 99.68%, 100%, 100%, 100% and 78.27%, respectively. Meanwhile, the BC-CuO/PMS can remove >88.61% of MB in other salt systems containing one or more salt components and 68.43% of COD from landfill leachate. Experimental results confirmed that sulfate radical (SO4▪-), hydroxyl radical (▪OH) and singlet oxygen (1O2) all contributed to the pollutants degradation, but 1O2 was dominated in highly saline systems. On the basis of the characterization and analysis data, possible activation mechanisms of the oxygenated functional groups of biochar and hydroxylation of CuO surface accelerating the generation of 1O2 were proposed. BC-CuO activating PMS is a promising technique for the removal of organic pollutants from highly saline wastewater or complex background. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/32172118/Biochar_supported_CuO_composites_used_as_an_efficient_peroxymonosulfate_activator_for_highly_saline_organic_wastewater_treatment_ DB - PRIME DP - Unbound Medicine ER -
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