Potential tertiary treatment of produced water using highly hydrophilic nanofiltration and reverse osmosis membranes

Salem Alzahrani, Abdul Wahab Mohammad, Pauzi Abdullah, Othman Jaafar

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

This study characterized the potential of new, highly hydrophilic nanofiltration (NF) and reverse osmosis (RO) membranes for the beneficial reuse of produced water. It was found that both NF and RO membranes were hydrophilic at 23 ± 0.90 and 37 ± 0.49, respectively. The findings of the permeation tests revealed that the NF membrane exhibited a higher permeability (7.3 L m-2 h-1) in pure water than the RO membrane (3.4 L m-2 h-1). The NF membrane was effective at rejecting certain monovalent salt ions (in 2000 mg/L, 97% Na2SO4, 95% MgSO4, 94.8% CaSO4, 94% K2SO4, and 87% Na2CO3), whereas the RO membrane was more effective at rejecting hard salts (96% Na2CO3, 88% NaCl, 85% KCl, 85.4% BaCl2, 83% NaHCO3, and 80-81% for Na 2SO4, MgCl2, SrCl2, and K 2SO4). A primary assessment of the post-treatment potential of the NF and RO membranes for produced water showed that the critical component in produced water was characterized mainly by TDS and TOC at 854 and 26.3 mg/L, respectively. The RO membrane was more efficient at rejecting these components, in quantities of 244 mg/L of TDS and 6.7 mg/L of TOC, whereas the NF membrane attained 520 mg/L of TDS and 22.9 mg/L of TOC. Both membranes reduced the initial oil concentrations (2 mg/L), turbidity (21 NTU) and TSS (10 mg/L) to less than 1 mg/L. Conclusively, the findings on the treated water quality substantiated the possibility of utilizing RO-treated water as a future source of water.

Original languageEnglish
Pages (from-to)1341-1349
Number of pages9
JournalJournal of Environmental Chemical Engineering
Volume1
Issue number4
DOIs
Publication statusPublished - Dec 2013

Fingerprint

Osmosis membranes
Nanofiltration
Reverse osmosis
membrane
Nanofiltration membranes
water
Water
Salts
Magnesium Chloride
Turbidity
Produced Water
tertiary treatment
reverse osmosis
Permeation
salt
Water quality
Oils
Ions
Membranes
turbidity

Keywords

  • Hydrophilic membrane
  • Membrane characterization
  • Produced water
  • Tertiary treatment
  • Wastewater reuse

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Process Chemistry and Technology
  • Pollution
  • Waste Management and Disposal

Cite this

Potential tertiary treatment of produced water using highly hydrophilic nanofiltration and reverse osmosis membranes. / Alzahrani, Salem; Mohammad, Abdul Wahab; Abdullah, Pauzi; Jaafar, Othman.

In: Journal of Environmental Chemical Engineering, Vol. 1, No. 4, 12.2013, p. 1341-1349.

Research output: Contribution to journalArticle

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