Insight into Fe(II)/UV/chlorine pretreatment for reducing ultrafiltration (UF) membrane fouling: Effects of different natural organic fractions and comparison with coagulation

Jiajian Xing, Heng Liang, Chong Joon Chuah, Yueping Bao, Xinsheng Luo, Tianyu Wang, Jinlong Wang, Guibai Li, Shane A. Snyder

Research output: Contribution to journalArticle

Abstract

Fe(II)/UV/chlorine was promoted as a pretreatment strategy for UF membrane to mitigate membrane fouling induced from different organic fractions. This treatment could be an emerging alternative prior to UF process attributed to the coupled role of oxidation and coagulation. To obtain a comprehensive understanding of fouling reduction, the influence of Fe(II)/UV/chlorine process on the characteristics of various feed solutions was inspected, including humic acid (HA), bovine serum albumin (BSA), sodium alginate (SA) and their mixture (HSB). The results suggested that Fe(II)/UV/chlorine process exhibited notable performance on membrane fouling control compared to Fe(II) coagulation alone. With the UV exposure of 720 mJ/cm2, the certain dose of Fe(II) and chlorine (15 μM and 2 mg/L) effectively prevented the rapid development of fouling caused by the single organic fractions and their mixture. And the increased dosage promoted the performance of membrane fouling mitigation. The reduction of organic loadings and characteristics change of feed water took the main responsibility for the fouling alleviation. The properties of membrane fouling and their correlation with feed water qualities were analyzed. The results and insight analysis were supposed to evaluate and predict the effectiveness of fouling control when the feed solutions were pretreated by Fe(II)/UV/chlorine process according to various compositions and characteristics of the organic fractions.

Original languageEnglish (US)
Article number115112
JournalWater research
Volume167
DOIs
StatePublished - Dec 15 2019
Externally publishedYes

Fingerprint

Membrane fouling
Ultrafiltration
Coagulation
ultrafiltration
fouling
coagulation
Chlorine
chlorine
Fouling
membrane
Sodium alginate
Water quality
effect
comparison
alginate
Membranes
Oxidation
humic acid
serum
Chemical analysis

Keywords

  • Coagulation
  • Fe(II)/UV/Chlorine
  • Membrane fouling
  • Natural organic matter (NOM)
  • Oxidation

ASJC Scopus subject areas

  • Ecological Modeling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

Cite this

Insight into Fe(II)/UV/chlorine pretreatment for reducing ultrafiltration (UF) membrane fouling : Effects of different natural organic fractions and comparison with coagulation. / Xing, Jiajian; Liang, Heng; Chuah, Chong Joon; Bao, Yueping; Luo, Xinsheng; Wang, Tianyu; Wang, Jinlong; Li, Guibai; Snyder, Shane A.

In: Water research, Vol. 167, 115112, 15.12.2019.

Research output: Contribution to journalArticle

Xing, Jiajian ; Liang, Heng ; Chuah, Chong Joon ; Bao, Yueping ; Luo, Xinsheng ; Wang, Tianyu ; Wang, Jinlong ; Li, Guibai ; Snyder, Shane A. / Insight into Fe(II)/UV/chlorine pretreatment for reducing ultrafiltration (UF) membrane fouling : Effects of different natural organic fractions and comparison with coagulation. In: Water research. 2019 ; Vol. 167.
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abstract = "Fe(II)/UV/chlorine was promoted as a pretreatment strategy for UF membrane to mitigate membrane fouling induced from different organic fractions. This treatment could be an emerging alternative prior to UF process attributed to the coupled role of oxidation and coagulation. To obtain a comprehensive understanding of fouling reduction, the influence of Fe(II)/UV/chlorine process on the characteristics of various feed solutions was inspected, including humic acid (HA), bovine serum albumin (BSA), sodium alginate (SA) and their mixture (HSB). The results suggested that Fe(II)/UV/chlorine process exhibited notable performance on membrane fouling control compared to Fe(II) coagulation alone. With the UV exposure of 720 mJ/cm2, the certain dose of Fe(II) and chlorine (15 μM and 2 mg/L) effectively prevented the rapid development of fouling caused by the single organic fractions and their mixture. And the increased dosage promoted the performance of membrane fouling mitigation. The reduction of organic loadings and characteristics change of feed water took the main responsibility for the fouling alleviation. The properties of membrane fouling and their correlation with feed water qualities were analyzed. The results and insight analysis were supposed to evaluate and predict the effectiveness of fouling control when the feed solutions were pretreated by Fe(II)/UV/chlorine process according to various compositions and characteristics of the organic fractions.",
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