Effect of Pre-Oxidation on Coagulation/Ceramic Membrane Treatment of Yangtze River Water

The membrane separation process is being widely used in water treatment. It is very important to control membrane fouling in the process of water treatment. This study was conducted to evaluate the efficiency of a pre-oxidation-coagulation flat ceramic membrane filtration process using different oxi...

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Main Authors:	Shengji Xia, Xinran Zhang, Yuanchen Zhao, Fibor J. Tan, Pan Li, Yanling Liu
Format:	Article
Language:	English
Published:	MDPI AG 2021-05-01
Series:	Membranes
Subjects:	pre-oxidation flat ceramic membrane membrane fouling microfiltration
Online Access:	https://www.mdpi.com/2077-0375/11/5/369

id	doaj-e81f904b22cf482dba1b97a26daecc40
record_format	Article
spelling	doaj-e81f904b22cf482dba1b97a26daecc402021-06-01T00:25:49ZengMDPI AGMembranes2077-03752021-05-011136936910.3390/membranes11050369Effect of Pre-Oxidation on Coagulation/Ceramic Membrane Treatment of Yangtze River WaterShengji Xia0Xinran Zhang1Yuanchen Zhao2Fibor J. Tan3Pan Li4Yanling Liu5Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, ChinaKey Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, ChinaKey Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, ChinaSchool of Civil, Environmental, and Geological Engineering, Mapua University, Manila 1002, PhilippinesKey Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, ChinaKey Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, ChinaThe membrane separation process is being widely used in water treatment. It is very important to control membrane fouling in the process of water treatment. This study was conducted to evaluate the efficiency of a pre-oxidation-coagulation flat ceramic membrane filtration process using different oxidant types and dosages in water treatment and membrane fouling control. The results showed that under suitable concentration conditions, the effect on membrane fouling control of a NaClO pre-oxidation combined with a coagulation/ceramic membrane system was better than that of an O<sub>3</sub> system. The oxidation process changed the structure of pollutants, reduced the pollution load and enhanced the coagulation process in a pre-oxidation-coagulation system as well. The influence of the oxidant on the filtration system was related to its oxidizability and other characteristics. NaClO and O<sub>3</sub> performed more efficiently than KMnO<sub>4</sub>. NaClO was more conducive to the removal of DOC, and O<sub>3</sub> was more conducive to the removal of UV<sub>254</sub>.https://www.mdpi.com/2077-0375/11/5/369pre-oxidationflat ceramic membranemembrane foulingmicrofiltration
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Shengji Xia Xinran Zhang Yuanchen Zhao Fibor J. Tan Pan Li Yanling Liu
spellingShingle	Shengji Xia Xinran Zhang Yuanchen Zhao Fibor J. Tan Pan Li Yanling Liu Effect of Pre-Oxidation on Coagulation/Ceramic Membrane Treatment of Yangtze River Water Membranes pre-oxidation flat ceramic membrane membrane fouling microfiltration
author_facet	Shengji Xia Xinran Zhang Yuanchen Zhao Fibor J. Tan Pan Li Yanling Liu
author_sort	Shengji Xia
title	Effect of Pre-Oxidation on Coagulation/Ceramic Membrane Treatment of Yangtze River Water
title_short	Effect of Pre-Oxidation on Coagulation/Ceramic Membrane Treatment of Yangtze River Water
title_full	Effect of Pre-Oxidation on Coagulation/Ceramic Membrane Treatment of Yangtze River Water
title_fullStr	Effect of Pre-Oxidation on Coagulation/Ceramic Membrane Treatment of Yangtze River Water
title_full_unstemmed	Effect of Pre-Oxidation on Coagulation/Ceramic Membrane Treatment of Yangtze River Water
title_sort	effect of pre-oxidation on coagulation/ceramic membrane treatment of yangtze river water
publisher	MDPI AG
series	Membranes
issn	2077-0375
publishDate	2021-05-01
description	The membrane separation process is being widely used in water treatment. It is very important to control membrane fouling in the process of water treatment. This study was conducted to evaluate the efficiency of a pre-oxidation-coagulation flat ceramic membrane filtration process using different oxidant types and dosages in water treatment and membrane fouling control. The results showed that under suitable concentration conditions, the effect on membrane fouling control of a NaClO pre-oxidation combined with a coagulation/ceramic membrane system was better than that of an O<sub>3</sub> system. The oxidation process changed the structure of pollutants, reduced the pollution load and enhanced the coagulation process in a pre-oxidation-coagulation system as well. The influence of the oxidant on the filtration system was related to its oxidizability and other characteristics. NaClO and O<sub>3</sub> performed more efficiently than KMnO<sub>4</sub>. NaClO was more conducive to the removal of DOC, and O<sub>3</sub> was more conducive to the removal of UV<sub>254</sub>.
topic	pre-oxidation flat ceramic membrane membrane fouling microfiltration
url	https://www.mdpi.com/2077-0375/11/5/369
work_keys_str_mv	AT shengjixia effectofpreoxidationoncoagulationceramicmembranetreatmentofyangtzeriverwater AT xinranzhang effectofpreoxidationoncoagulationceramicmembranetreatmentofyangtzeriverwater AT yuanchenzhao effectofpreoxidationoncoagulationceramicmembranetreatmentofyangtzeriverwater AT fiborjtan effectofpreoxidationoncoagulationceramicmembranetreatmentofyangtzeriverwater AT panli effectofpreoxidationoncoagulationceramicmembranetreatmentofyangtzeriverwater AT yanlingliu effectofpreoxidationoncoagulationceramicmembranetreatmentofyangtzeriverwater
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Effect of Pre-Oxidation on Coagulation/Ceramic Membrane Treatment of Yangtze River Water

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