Using Seawater Reverse Osmosis (SWRO) desalting system for less environmental impacts in Qatar

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30 Citations (Scopus)

Abstract

In Qatar, the multi stage flash (MSF) system which is predominantly used for desalting seawater has negative impacts on the environment due to burning fossil fuels that emit greenhouse gases. Impingement and entrainment of marine organisms at the intake, higher temperatures and salinity as well as chemical pollution at the outfall are the main footprints on the marine environment. The objective of this paper is to show the main benefits on the environment of using the seawater reverse osmosis (SWRO) process over the MSF process for the present desalination capacity of 1.2Mm3/d in 2012. The study showed that the seawater intake would be reduced about 3 times from 8.4Mm3/d to 3.6Mm3/d, which decreases the impingement and entrainment of marine organisms at the intake. Hence the corresponding discharge of brine and cooling water could be reduced from 7.2Mm3/d to 2.4Mm3/d for MSF and SWRO, respectively. Moreover, the thermal pollution of the rejected effluents from MSF plants could be eliminated and the chlorine residual would be reduced dramatically when using SWRO. Finally, the use of SWRO saves up to 75% of energy use, and thus the CO2 emissions would be reduced from 3.564 to 0.891million (M) tons per year.

Original languageEnglish
Pages (from-to)113-124
Number of pages12
JournalDesalination
Volume309
DOIs
Publication statusPublished - 15 Jan 2013

Fingerprint

Salt removal
Reverse osmosis
Seawater
Environmental impact
environmental impact
seawater
entrainment
Thermal pollution
thermal pollution
Outfalls
Air entrainment
cooling water
Chlorine
Cooling water
Desalination
energy use
Fossil fuels
Greenhouse gases
footprint
desalination

Keywords

  • Desalination technologies
  • Environmental impacts
  • Productivity and efficiency

ASJC Scopus subject areas

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

Cite this

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title = "Using Seawater Reverse Osmosis (SWRO) desalting system for less environmental impacts in Qatar",
abstract = "In Qatar, the multi stage flash (MSF) system which is predominantly used for desalting seawater has negative impacts on the environment due to burning fossil fuels that emit greenhouse gases. Impingement and entrainment of marine organisms at the intake, higher temperatures and salinity as well as chemical pollution at the outfall are the main footprints on the marine environment. The objective of this paper is to show the main benefits on the environment of using the seawater reverse osmosis (SWRO) process over the MSF process for the present desalination capacity of 1.2Mm3/d in 2012. The study showed that the seawater intake would be reduced about 3 times from 8.4Mm3/d to 3.6Mm3/d, which decreases the impingement and entrainment of marine organisms at the intake. Hence the corresponding discharge of brine and cooling water could be reduced from 7.2Mm3/d to 2.4Mm3/d for MSF and SWRO, respectively. Moreover, the thermal pollution of the rejected effluents from MSF plants could be eliminated and the chlorine residual would be reduced dramatically when using SWRO. Finally, the use of SWRO saves up to 75{\%} of energy use, and thus the CO2 emissions would be reduced from 3.564 to 0.891million (M) tons per year.",
keywords = "Desalination technologies, Environmental impacts, Productivity and efficiency",
author = "Mohamed Darwish and Abdelhakim Hassabou and Basem Shomar",
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AU - Darwish, Mohamed

AU - Hassabou, Abdelhakim

AU - Shomar, Basem

PY - 2013/1/15

Y1 - 2013/1/15

N2 - In Qatar, the multi stage flash (MSF) system which is predominantly used for desalting seawater has negative impacts on the environment due to burning fossil fuels that emit greenhouse gases. Impingement and entrainment of marine organisms at the intake, higher temperatures and salinity as well as chemical pollution at the outfall are the main footprints on the marine environment. The objective of this paper is to show the main benefits on the environment of using the seawater reverse osmosis (SWRO) process over the MSF process for the present desalination capacity of 1.2Mm3/d in 2012. The study showed that the seawater intake would be reduced about 3 times from 8.4Mm3/d to 3.6Mm3/d, which decreases the impingement and entrainment of marine organisms at the intake. Hence the corresponding discharge of brine and cooling water could be reduced from 7.2Mm3/d to 2.4Mm3/d for MSF and SWRO, respectively. Moreover, the thermal pollution of the rejected effluents from MSF plants could be eliminated and the chlorine residual would be reduced dramatically when using SWRO. Finally, the use of SWRO saves up to 75% of energy use, and thus the CO2 emissions would be reduced from 3.564 to 0.891million (M) tons per year.

AB - In Qatar, the multi stage flash (MSF) system which is predominantly used for desalting seawater has negative impacts on the environment due to burning fossil fuels that emit greenhouse gases. Impingement and entrainment of marine organisms at the intake, higher temperatures and salinity as well as chemical pollution at the outfall are the main footprints on the marine environment. The objective of this paper is to show the main benefits on the environment of using the seawater reverse osmosis (SWRO) process over the MSF process for the present desalination capacity of 1.2Mm3/d in 2012. The study showed that the seawater intake would be reduced about 3 times from 8.4Mm3/d to 3.6Mm3/d, which decreases the impingement and entrainment of marine organisms at the intake. Hence the corresponding discharge of brine and cooling water could be reduced from 7.2Mm3/d to 2.4Mm3/d for MSF and SWRO, respectively. Moreover, the thermal pollution of the rejected effluents from MSF plants could be eliminated and the chlorine residual would be reduced dramatically when using SWRO. Finally, the use of SWRO saves up to 75% of energy use, and thus the CO2 emissions would be reduced from 3.564 to 0.891million (M) tons per year.

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