Combined humic substance and heavy metals agglomeration, and membrane filtration under saline conditions

Nidal Hilal, Mohammed Al-Abri, Hilal Al-Hinai, Chris Somerfield

Research output: Contribution to journalArticlepeer-review

Abstract

Humic substances-heavy metals complexation combined with membrane filtration is reported. The effects of salinity, humic substances (HS) concentration, heavy metals concentration, and trans-membrane pressure (TMP) on HS and heavy metals retention using two membranes are studied. Membrane fouling is also studied at the aforementioned conditions. NF270 experienced higher fouling. Moreover, salinity tests showed increasing fouling rate and reduction in membrane retention with increasing salinity level. While increasing HS concentration reduced HS retention and increased heavy metals retention and membrane fouling. Heavy metals concentration reduced the NF270 HS retention, but did not affect the P005F HS retention. In addition, TMP did not affect HS and heavy metals retention nor NF270 fouling, but increased P005F fouling.

Original languageEnglish (US)
Pages (from-to)1488-1506
Number of pages19
JournalSeparation Science and Technology
Volume43
Issue number6
DOIs
StatePublished - Jan 2008

Keywords

  • Fouling
  • Heavy metals
  • Humic substance
  • Nanofiltration

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Process Chemistry and Technology
  • Filtration and Separation

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