Reducing flux decline and fouling of direct contact membrane distillation by utilizing thermal brine from MSF desalination plant

Ahmad Kayvani Fard, Tarik Rhadfi, Majeda Khraisheh, Muataz Atieh, Marwan Khraisheh, Nidal Hilal

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Fouling and scaling is one of the major challenges in membrane distillation process. This study investigates the utilizing of thermal rejected brine produced from multi-stage flash distillation (MSF) to minimize fouling and scaling on membranes in direct contact membrane distillation (DCMD) settings. The effect of operating parameters on permeate flux and the extent of scaling during long time operation was considered and compared when real seawater and reject thermal brine were used. The deposit morphology of scaling was observed using different analytical methods, including scanning electron microscopy and contact angle measurement. Thermal brine showed enhanced performance in terms of flux and scaling compared to seawater. It was found that flux is reduced by 8% compared to 12-20% when the feed to the DCMD was brine was used as compared to seawater. In addition, thermal brine feed showed better anti-fouling behavior compared to the fresh seawater which contains different organic and inorganic contaminants.Furthermore, utilizing waste heat contained in the thermal brine to raise the temperature of the feed was advantageous in increasing the energy efficiency of DCMD process.

Original languageEnglish
Pages (from-to)172-181
Number of pages10
JournalDesalination
Volume379
DOIs
Publication statusPublished - 1 Feb 2016

Fingerprint

Desalination
Fouling
distillation
fouling
Distillation
brine
Seawater
Fluxes
membrane
Membranes
seawater
Waste heat
Angle measurement
antifouling
Contact angle
Energy efficiency
energy efficiency
Deposits
Hot Temperature
desalination plant

Keywords

  • Direct contact MD
  • Flux
  • Fouling
  • Membrane distillation
  • Scaling
  • Seawater

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Chemistry(all)
  • Materials Science(all)
  • Water Science and Technology

Cite this

Reducing flux decline and fouling of direct contact membrane distillation by utilizing thermal brine from MSF desalination plant. / Kayvani Fard, Ahmad; Rhadfi, Tarik; Khraisheh, Majeda; Atieh, Muataz; Khraisheh, Marwan; Hilal, Nidal.

In: Desalination, Vol. 379, 01.02.2016, p. 172-181.

Research output: Contribution to journalArticle

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