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Regeneration of dimethyl ether as a draw solute in forward osmosis by utilising thermal energy from a solar pond

Abbassi Monjezi, Alireza, Mahood, HB and Campbell, AN (2017) Regeneration of dimethyl ether as a draw solute in forward osmosis by utilising thermal energy from a solar pond Desalination, 415. pp. 104-114.

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Abstract

Utilisation of solar thermal energy in forward osmosis (FO) can provide an attractive method for seawater desalination. This study presents a novel process for the regeneration of dimethyl ether (DME) as a draw solute in FO using thermal energy from a solar pond. The location considered for this process is Chabahar (Iran) which benefits from a very high solar irradiance and access to an abundance of seawater from the Sea of Oman making it an ideal location for the proposed process. The average daily volume of desalinated water produced using this process coupled to a solar pond of 10,000 m2 was determined. It is indicated that a solar pond of such moderate size can drive a forward osmosis plant to provide 5,210 m3 of freshwater in the first two years of operation in Chabahar. The proposed process provides freshwater at varying rates throughout the year and benefits from a very low electricity consumption rate of 0.46 kWh per cubic metre of desalinated water offering a viable option for solar desalination. Considering that there are vast uninhabited coastal areas particularly in the Middle East and North Africa (MENA) region, the proposed method can contribute towards addressing the growing potable water scarcity.

Item Type: Article
Subjects : Chemical & Process Engineering
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
NameEmailORCID
Abbassi Monjezi, Alirezaa.abbassimonjezi@surrey.ac.ukUNSPECIFIED
Mahood, HBUNSPECIFIEDUNSPECIFIED
Campbell, ANa.n.campbell@surrey.ac.ukUNSPECIFIED
Date : 28 April 2017
Identification Number : 10.1016/j.desal.2017.03.034
Copyright Disclaimer : © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Forward osmosis; Solar pond; Draw solution; Desalination; Renewable energy
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 05 Apr 2017 10:01
Last Modified : 30 Jun 2017 16:49
URI: http://epubs.surrey.ac.uk/id/eprint/813947

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