Preparation, characterization and dyeing wastewater treatment of a new PVDF/PMMA five-bore UF membrane with β-cyclodextrin and additive combinations

A new type of polyvinylidene fluoride (PVDF)/polymethyl methacrylate (PMMA) hollow fiber membrane (HFM) with five bores was prepared. The effects of polyvinylpyrrolidone (PVP), β-cyclodextrine (β-CD), polyethylene glycol (PEG) and polysorbate 80 (Tween 80) and their combinations on the PVDF/PMMA fiv...

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Autores principales:	Xiaozheng Bian, Jianping Huang, Lin Qiu, Chunyan Ma, Danli Xi
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	additive β-cyclodextrine (β-cd) dyeing wastewater five-bore hollow fiber membrane polyvinylpyrrolidone (pvp) Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/063ec67c579b470bbcecca0fc1264614
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spelling	oai:doaj.org-article:063ec67c579b470bbcecca0fc12646142021-11-06T10:56:04ZPreparation, characterization and dyeing wastewater treatment of a new PVDF/PMMA five-bore UF membrane with β-cyclodextrin and additive combinations0273-12231996-973210.2166/wst.2021.104https://doaj.org/article/063ec67c579b470bbcecca0fc12646142021-04-01T00:00:00Zhttp://wst.iwaponline.com/content/83/8/1847https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732A new type of polyvinylidene fluoride (PVDF)/polymethyl methacrylate (PMMA) hollow fiber membrane (HFM) with five bores was prepared. The effects of polyvinylpyrrolidone (PVP), β-cyclodextrine (β-CD), polyethylene glycol (PEG) and polysorbate 80 (Tween 80) and their combinations on the PVDF/PMMA five-bore HFMs were investigated. The performance and fouling characteristics of five-bore HFMs for dyeing wastewater treatment were evaluated. Results indicated that adding 5 wt.% PVP increased the porosity and water flux of the membrane but decreased the bovine serum albumin (BSA) rejection rate. Adding 5 wt.% β-CD significantly improved the tensile strength and rejection of the HFMs with no effect on the increase of water flux. The characteristic of the HFMs with different additive combinations proved that the mixture of 5 wt.% PVP and 1 wt.% β-CD gave the best membrane performance, with a pure water flux of 427.9 L/ m2·h, a contact angle of 25°, and a rejection of BSA of 89.7%. The CODcr and UV254 removal rates of dyeing wastewater treatment were 61.10% and 50.41%, respectively. No breakage or leakage points were found after 120 days of operation, showing their reliable mechanical properties. We set the operating flux to 55 L/m2·h and cross-flow rate to 10%, which can effectively control membrane fouling. HIGHLIGHTS PVDF/PMMA five-bore HFMs were prepared by dry-wet spinning.; The addition of PVP and β-CD had significant effects on HFM hydrophilicity and rejection respectively.; The best film properties were obtained by mixing 5 wt% PVP and 1 wt% β-CD.; The laboratory-made membrane module could effectively remove chemical oxygen demand and the turbidity of the dyeing wastewater.; No breakage or leakage points were found after 120 days of operation, showing their reliable mechanical properties.;Xiaozheng BianJianping HuangLin QiuChunyan MaDanli XiIWA Publishingarticleadditiveβ-cyclodextrine (β-cd)dyeing wastewaterfive-borehollow fiber membranepolyvinylpyrrolidone (pvp)Environmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 8, Pp 1847-1862 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	additive β-cyclodextrine (β-cd) dyeing wastewater five-bore hollow fiber membrane polyvinylpyrrolidone (pvp) Environmental technology. Sanitary engineering TD1-1066
spellingShingle	additive β-cyclodextrine (β-cd) dyeing wastewater five-bore hollow fiber membrane polyvinylpyrrolidone (pvp) Environmental technology. Sanitary engineering TD1-1066 Xiaozheng Bian Jianping Huang Lin Qiu Chunyan Ma Danli Xi Preparation, characterization and dyeing wastewater treatment of a new PVDF/PMMA five-bore UF membrane with β-cyclodextrin and additive combinations
description	A new type of polyvinylidene fluoride (PVDF)/polymethyl methacrylate (PMMA) hollow fiber membrane (HFM) with five bores was prepared. The effects of polyvinylpyrrolidone (PVP), β-cyclodextrine (β-CD), polyethylene glycol (PEG) and polysorbate 80 (Tween 80) and their combinations on the PVDF/PMMA five-bore HFMs were investigated. The performance and fouling characteristics of five-bore HFMs for dyeing wastewater treatment were evaluated. Results indicated that adding 5 wt.% PVP increased the porosity and water flux of the membrane but decreased the bovine serum albumin (BSA) rejection rate. Adding 5 wt.% β-CD significantly improved the tensile strength and rejection of the HFMs with no effect on the increase of water flux. The characteristic of the HFMs with different additive combinations proved that the mixture of 5 wt.% PVP and 1 wt.% β-CD gave the best membrane performance, with a pure water flux of 427.9 L/ m2·h, a contact angle of 25°, and a rejection of BSA of 89.7%. The CODcr and UV254 removal rates of dyeing wastewater treatment were 61.10% and 50.41%, respectively. No breakage or leakage points were found after 120 days of operation, showing their reliable mechanical properties. We set the operating flux to 55 L/m2·h and cross-flow rate to 10%, which can effectively control membrane fouling. HIGHLIGHTS PVDF/PMMA five-bore HFMs were prepared by dry-wet spinning.; The addition of PVP and β-CD had significant effects on HFM hydrophilicity and rejection respectively.; The best film properties were obtained by mixing 5 wt% PVP and 1 wt% β-CD.; The laboratory-made membrane module could effectively remove chemical oxygen demand and the turbidity of the dyeing wastewater.; No breakage or leakage points were found after 120 days of operation, showing their reliable mechanical properties.;
format	article
author	Xiaozheng Bian Jianping Huang Lin Qiu Chunyan Ma Danli Xi
author_facet	Xiaozheng Bian Jianping Huang Lin Qiu Chunyan Ma Danli Xi
author_sort	Xiaozheng Bian
title	Preparation, characterization and dyeing wastewater treatment of a new PVDF/PMMA five-bore UF membrane with β-cyclodextrin and additive combinations
title_short	Preparation, characterization and dyeing wastewater treatment of a new PVDF/PMMA five-bore UF membrane with β-cyclodextrin and additive combinations
title_full	Preparation, characterization and dyeing wastewater treatment of a new PVDF/PMMA five-bore UF membrane with β-cyclodextrin and additive combinations
title_fullStr	Preparation, characterization and dyeing wastewater treatment of a new PVDF/PMMA five-bore UF membrane with β-cyclodextrin and additive combinations
title_full_unstemmed	Preparation, characterization and dyeing wastewater treatment of a new PVDF/PMMA five-bore UF membrane with β-cyclodextrin and additive combinations
title_sort	preparation, characterization and dyeing wastewater treatment of a new pvdf/pmma five-bore uf membrane with β-cyclodextrin and additive combinations
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/063ec67c579b470bbcecca0fc1264614
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Preparation, characterization and dyeing wastewater treatment of a new PVDF/PMMA five-bore UF membrane with β-cyclodextrin and additive combinations

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