Investigation of membrane fouling mechanism of intracellular organic matter during ultrafiltration

Abstract This study investigated the ultrafiltration (UF) membrane fouling mechanism of intracellular organic matter (IOM) from Chlorella vulgaris (CV) and Microcystis aeruginosa (MA). Both CV- and MA-IOM caused severe membrane fouling during UF; however, there were significant differences in the me...

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Autores principales:	Weiwei Huang, Yuanhong Zhu, Bingzhi Dong, Weiwei Lv, Quan Yuan, Wenzong Zhou, Weiguang Lv
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fa667d63ecd34240a034cbc1fc7324d9
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spelling	oai:doaj.org-article:fa667d63ecd34240a034cbc1fc7324d92021-12-02T15:22:57ZInvestigation of membrane fouling mechanism of intracellular organic matter during ultrafiltration10.1038/s41598-020-79272-42045-2322https://doaj.org/article/fa667d63ecd34240a034cbc1fc7324d92021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79272-4https://doaj.org/toc/2045-2322Abstract This study investigated the ultrafiltration (UF) membrane fouling mechanism of intracellular organic matter (IOM) from Chlorella vulgaris (CV) and Microcystis aeruginosa (MA). Both CV- and MA-IOM caused severe membrane fouling during UF; however, there were significant differences in the membrane fouling by these two materials. Neutral hydrophilic (N-HPI) compounds were the organics that caused the most severe membrane fouling during CV-IOM filtration, whereas the MA-IOM membrane fouling was induced by mainly hydrophobic (HPO) organics. From an analysis based on Derjaguin–Landau–Verwey–Overbeek theory, it was found that the interaction energy between the membrane and foulants in the later stage of filtration was the major factor determining the efficiency of filtration for both CV-IOM and MA-IOM. The TPI organics in CV-IOM fouled the membrane to a more severe degree during the initial filtration flux; however, when the membrane surface was covered with CV-IOM foulants, the N-HPI fraction of CV-IOM caused the most severe membrane fouling because its attractive energy with the membrane was the highest. For MA-IOM, regardless of the initial filtration flux or the late stage of filtration, the HPO organics fouled the membrane to the greatest extent. An analysis of modified filtration models revealed that cake layer formation played a more important role than other fouling mechanisms during the filtration of CV-IOM and MA-IOM. This study provides a significant understanding of the membrane fouling mechanism of IOM and is beneficial for developing some strategies for membrane fouling control when treating MA and CV algae-laden waters.Weiwei HuangYuanhong ZhuBingzhi DongWeiwei LvQuan YuanWenzong ZhouWeiguang LvNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Weiwei Huang Yuanhong Zhu Bingzhi Dong Weiwei Lv Quan Yuan Wenzong Zhou Weiguang Lv Investigation of membrane fouling mechanism of intracellular organic matter during ultrafiltration
description	Abstract This study investigated the ultrafiltration (UF) membrane fouling mechanism of intracellular organic matter (IOM) from Chlorella vulgaris (CV) and Microcystis aeruginosa (MA). Both CV- and MA-IOM caused severe membrane fouling during UF; however, there were significant differences in the membrane fouling by these two materials. Neutral hydrophilic (N-HPI) compounds were the organics that caused the most severe membrane fouling during CV-IOM filtration, whereas the MA-IOM membrane fouling was induced by mainly hydrophobic (HPO) organics. From an analysis based on Derjaguin–Landau–Verwey–Overbeek theory, it was found that the interaction energy between the membrane and foulants in the later stage of filtration was the major factor determining the efficiency of filtration for both CV-IOM and MA-IOM. The TPI organics in CV-IOM fouled the membrane to a more severe degree during the initial filtration flux; however, when the membrane surface was covered with CV-IOM foulants, the N-HPI fraction of CV-IOM caused the most severe membrane fouling because its attractive energy with the membrane was the highest. For MA-IOM, regardless of the initial filtration flux or the late stage of filtration, the HPO organics fouled the membrane to the greatest extent. An analysis of modified filtration models revealed that cake layer formation played a more important role than other fouling mechanisms during the filtration of CV-IOM and MA-IOM. This study provides a significant understanding of the membrane fouling mechanism of IOM and is beneficial for developing some strategies for membrane fouling control when treating MA and CV algae-laden waters.
format	article
author	Weiwei Huang Yuanhong Zhu Bingzhi Dong Weiwei Lv Quan Yuan Wenzong Zhou Weiguang Lv
author_facet	Weiwei Huang Yuanhong Zhu Bingzhi Dong Weiwei Lv Quan Yuan Wenzong Zhou Weiguang Lv
author_sort	Weiwei Huang
title	Investigation of membrane fouling mechanism of intracellular organic matter during ultrafiltration
title_short	Investigation of membrane fouling mechanism of intracellular organic matter during ultrafiltration
title_full	Investigation of membrane fouling mechanism of intracellular organic matter during ultrafiltration
title_fullStr	Investigation of membrane fouling mechanism of intracellular organic matter during ultrafiltration
title_full_unstemmed	Investigation of membrane fouling mechanism of intracellular organic matter during ultrafiltration
title_sort	investigation of membrane fouling mechanism of intracellular organic matter during ultrafiltration
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/fa667d63ecd34240a034cbc1fc7324d9
work_keys_str_mv	AT weiweihuang investigationofmembranefoulingmechanismofintracellularorganicmatterduringultrafiltration AT yuanhongzhu investigationofmembranefoulingmechanismofintracellularorganicmatterduringultrafiltration AT bingzhidong investigationofmembranefoulingmechanismofintracellularorganicmatterduringultrafiltration AT weiweilv investigationofmembranefoulingmechanismofintracellularorganicmatterduringultrafiltration AT quanyuan investigationofmembranefoulingmechanismofintracellularorganicmatterduringultrafiltration AT wenzongzhou investigationofmembranefoulingmechanismofintracellularorganicmatterduringultrafiltration AT weiguanglv investigationofmembranefoulingmechanismofintracellularorganicmatterduringultrafiltration
_version_	1718387407777169408

Investigation of membrane fouling mechanism of intracellular organic matter during ultrafiltration

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