Reverse osmosis desalination system and algal blooms part III

SWRO pretreatment

Hassan K. Abdulrahim, Abdulsattar M. Al-Rasheed, Ashraf Hassan, Abdel Nasser A. Mabrouk, Basem Shomar, Mohamed A. Darwish

Research output: Contribution to journalReview article

Abstract

This study is the third part of a comprehensive review on the effect of algal blooms (ABs) on seawater reverse osmosis (SWRO) desalination plants. The first part covered in depth the physical situation of the Arabian Gulf (AG), the occurrence of AB events, the major technical challenges of the existing and proposed reverse osmosis desalination plants (RODPs), and taxonomy and toxicity of ABs. The second part covered the seawater intake technologies affecting SWRO systems with respect to the ABs. This part covers the different SWRO pretreatment methods and issues arising from ABs. All countries of the Gulf Cooperation Council (GCC) are moving to implement energy efficient SWRO desalination technologies and are facing its main challenge: membranes fouling. The degree, level and complexity of fouling are proportional to the feed-seawater pretreatment methods. A robust pretreatment is the key factor for reliable continuous SWRO plant operation and performance. This paper reviews the available pretreatment methods for SWRO desalination including disinfection (mainly chlorination), coagulation and flocculation or dissolved air flotation (DAF), sedimentation, granular media filtration (GMF), low pressure membranes ultrafiltration (UF), and microfiltration (MF). Effective integration among these processes can be highly effective in enhancing the removal of ABs and their toxins and in protecting the SWRO membranes.

Original languageEnglish
Pages (from-to)11-38
Number of pages28
JournalDesalination and Water Treatment
Volume60
DOIs
Publication statusPublished - 1 Jan 2017

Fingerprint

Reverse osmosis
Desalination
Seawater
desalination
algal bloom
seawater
membrane
fouling
reverse osmosis
granular medium
Osmosis membranes
Membrane fouling
Microfiltration
Disinfection
Chlorination
Flocculation
Taxonomies
Ultrafiltration
chlorination
Fouling

Keywords

  • Harmful algal blooms
  • Membrane fouling
  • Reverse osmosis
  • Seawater pretreatment

ASJC Scopus subject areas

  • Water Science and Technology
  • Ocean Engineering
  • Pollution

Cite this

Reverse osmosis desalination system and algal blooms part III : SWRO pretreatment. / Abdulrahim, Hassan K.; Al-Rasheed, Abdulsattar M.; Hassan, Ashraf; Mabrouk, Abdel Nasser A.; Shomar, Basem; Darwish, Mohamed A.

In: Desalination and Water Treatment, Vol. 60, 01.01.2017, p. 11-38.

Research output: Contribution to journalReview article

Abdulrahim, Hassan K. ; Al-Rasheed, Abdulsattar M. ; Hassan, Ashraf ; Mabrouk, Abdel Nasser A. ; Shomar, Basem ; Darwish, Mohamed A. / Reverse osmosis desalination system and algal blooms part III : SWRO pretreatment. In: Desalination and Water Treatment. 2017 ; Vol. 60. pp. 11-38.
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