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Environ Sci Pollut Res Int

Title:		Coupled catalytic-biodegradation of toluene over manganese oxide-coated catalytic membranes
Author(s):		Wei Z; He Y; Xiao X; Huang Z; Jiao H;
Address:		"Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China. weizaishan98@163.com. Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China"
Journal Title:		Environ Sci Pollut Res Int
Year:		2022
Volume:		20220527
Issue:		48
Page Number:		73552 - 73562
DOI:		10.1007/s11356-022-20697-x
ISSN/ISBN:		1614-7499 (Electronic) 0944-1344 (Linking)
Abstract:		"Volatile organic compounds (VOCs) harm human health and the ecological environment. This work demonstrated manganese oxide catalytic membrane coupled to biodegradation of toluene in a catalytic membrane biofilm rector (CMBfR). Toluene removal efficiency in CMBfR was up to 91% in a 200-day operation. Manganese oxide combined to membrane biofilm reactor could promote degradation of toluene. Manganese oxide catalysts were characterized by XRD, Raman, XPS, and FT-IR. Raman and XPS spectra verified the existence of Mn defects, adsorbed oxygen species, and the oxygen vacancy, which was catalytic of toluene on the Mn oxides coated membranes significantly. Pseudomonas, Hydrogenophaga, Flavobacterium, Bacillus, Clostridium and Prosthecobacter were the dominant bacteria of toluene degradation. Mn oxides catalysis could degrade toluene into intermediate products; these products were entered into the biological phase eventually metabolized to CO(2) and H(2)O. These results show that the catalytic membrane biofilm reactor is achievable and opens new possibilities for applying the catalytic membrane biofilm reactor to VOCs treatment"
Keywords:		"Carbon Dioxide Catalysis Humans Manganese Compounds Oxidation-Reduction Oxides Oxygen Spectroscopy, Fourier Transform Infrared *Toluene *Volatile Organic Compounds Biodegradation Coupling mechanism Microbial community Mn oxide catalytic membrane VOCs;"
Notes:		"MedlineWei, Zaishan He, Yiming Xiao, Xiaoliang Huang, Zhenshan Jiao, Huaiyong eng 2019B1515120021/Guangdong Basic and Applied Basic Research Foundation/ 2019B11021003/Guangdong Science &Technology Project/ Germany 2022/05/28 Environ Sci Pollut Res Int. 2022 Oct; 29(48):73552-73562. doi: 10.1007/s11356-022-20697-x. Epub 2022 May 27"