Humic substances fouling in ultrafiltration processes

Iris Sutzkover-Gutman, David Hasson*, Raphael Semiat

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

154 Scopus citations

Abstract

Membrane fouling by humic substances (HS) is a major problem in UF water treatment. The complex phenomena involved have been the subject of numerous investigations. HS fouling is attributed to accumulation of particles in the feed water on the membrane surface forming a cake layer and adsorption of small particles in the inner pores thus constricting or blocking the pore mouth. The exact contribution of each of these mechanisms to membrane fouling and to flux reduction is not sufficiently clear. While there is a substantial qualitative agreement on various fouling aspects in studies focusing on commercial humic acid solutions, the extensive literature on fouling by natural organic matter (NOM) is less coherent. The major deficiency in the available information is the lack of reliable predictive models. This paper presents a systematic review of scattered literate information and outlines HS fouling aspects that await elucidation.

Original languageEnglish
Pages (from-to)218-231
Number of pages14
JournalDesalination
Volume261
Issue number3
DOIs
StatePublished - Oct 2010
Externally publishedYes

Keywords

  • Fouling
  • Humic acid
  • Humic substances
  • Ultrafiltration

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