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Thermodynamic optimization of Multistage Pressure Retarded Osmosis (MPRO) with variable feed pressures for hypersaline solutions

Sarper Sarp Orcid Logo, Nidal Hilal

Desalination, Volume: 477, Start page: 114245

Swansea University Authors: Sarper Sarp Orcid Logo, Nidal Hilal

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DOI (Published version): 10.1016/j.desal.2019.114245

Abstract

Salinity gradient processes, such as Forward Osmosis and Pressure Retarded Osmosis, have been proven to be promising technologies for reducing the energy consumption in water treatment processes, for energy production, and for energy recovery. In such processes higher power densities can be achieved...

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Published in: Desalination
ISSN: 0011-9164 1873-4464
Published: Elsevier BV 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa52858
first_indexed 2019-11-25T13:13:41Z
last_indexed 2025-04-10T05:36:10Z
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spelling 2025-04-09T15:46:10.4650879 v2 52858 2019-11-25 Thermodynamic optimization of Multistage Pressure Retarded Osmosis (MPRO) with variable feed pressures for hypersaline solutions ca341f0a3e516f888e12d2710d06e043 0000-0003-3866-1026 Sarper Sarp Sarper Sarp true false 3acba771241d878c8e35ff464aec0342 Nidal Hilal Nidal Hilal true false 2019-11-25 EAAS Salinity gradient processes, such as Forward Osmosis and Pressure Retarded Osmosis, have been proven to be promising technologies for reducing the energy consumption in water treatment processes, for energy production, and for energy recovery. In such processes higher power densities can be achieved by applying higher hydraulic pressures on the draw solution, this requires greater mechanical stability of the membrane to be able to withstand these higher hydraulic pressures. Therefore, there is a limitation to the salinity of the draw solution which can be used in the PRO processes. This being dependent on the concentration of the hypersaline solution and hence overall hydraulic pressure, necessitating the use of an ultra-thick support layer for maximum energy production and/or recovery. In this theoretical and simulative optimization of the PRO process, we achieved the optimum energy recovery from a hypersaline solution (TDS ~ 300,000 mg/L) by using a multistage PRO (MPRO) system which included implementing variable applied feed pressures to each stage. The results showed that the volumetric flow rate of the hypersaline draw solution increased by up to a factor of 10 during the MPRO process in single pass, and the concentration of the hypersaline draw solution diluted up to 10x accordingly. Journal Article Desalination 477 114245 Elsevier BV 0011-9164 1873-4464 Pressure retarded osmosis; Hypersaline solution; Energy recovery; Osmotic pressure; Gibbs&apos; free energy of mixing; Salinity gradient 1 3 2020 2020-03-01 10.1016/j.desal.2019.114245 COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University Not Required 2025-04-09T15:46:10.4650879 2019-11-25T04:37:23.1360688 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Sarper Sarp 0000-0003-3866-1026 1 Nidal Hilal 2 52858__15944__c84c5c5c8f1e432b9c58ec01baac2a69.pdf Accepted.pdf 2019-11-25T04:39:11.5633585 Output 2297828 application/pdf Accepted Manuscript true 2020-12-27T00:00:00.0000000 Distributed under the terms of a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC-BY-NC-ND) License. true eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title Thermodynamic optimization of Multistage Pressure Retarded Osmosis (MPRO) with variable feed pressures for hypersaline solutions
spellingShingle Thermodynamic optimization of Multistage Pressure Retarded Osmosis (MPRO) with variable feed pressures for hypersaline solutions
Sarper Sarp
Nidal Hilal
title_short Thermodynamic optimization of Multistage Pressure Retarded Osmosis (MPRO) with variable feed pressures for hypersaline solutions
title_full Thermodynamic optimization of Multistage Pressure Retarded Osmosis (MPRO) with variable feed pressures for hypersaline solutions
title_fullStr Thermodynamic optimization of Multistage Pressure Retarded Osmosis (MPRO) with variable feed pressures for hypersaline solutions
title_full_unstemmed Thermodynamic optimization of Multistage Pressure Retarded Osmosis (MPRO) with variable feed pressures for hypersaline solutions
title_sort Thermodynamic optimization of Multistage Pressure Retarded Osmosis (MPRO) with variable feed pressures for hypersaline solutions
author_id_str_mv ca341f0a3e516f888e12d2710d06e043
3acba771241d878c8e35ff464aec0342
author_id_fullname_str_mv ca341f0a3e516f888e12d2710d06e043_***_Sarper Sarp
3acba771241d878c8e35ff464aec0342_***_Nidal Hilal
author Sarper Sarp
Nidal Hilal
author2 Sarper Sarp
Nidal Hilal
format Journal article
container_title Desalination
container_volume 477
container_start_page 114245
publishDate 2020
institution Swansea University
issn 0011-9164
1873-4464
doi_str_mv 10.1016/j.desal.2019.114245
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description Salinity gradient processes, such as Forward Osmosis and Pressure Retarded Osmosis, have been proven to be promising technologies for reducing the energy consumption in water treatment processes, for energy production, and for energy recovery. In such processes higher power densities can be achieved by applying higher hydraulic pressures on the draw solution, this requires greater mechanical stability of the membrane to be able to withstand these higher hydraulic pressures. Therefore, there is a limitation to the salinity of the draw solution which can be used in the PRO processes. This being dependent on the concentration of the hypersaline solution and hence overall hydraulic pressure, necessitating the use of an ultra-thick support layer for maximum energy production and/or recovery. In this theoretical and simulative optimization of the PRO process, we achieved the optimum energy recovery from a hypersaline solution (TDS ~ 300,000 mg/L) by using a multistage PRO (MPRO) system which included implementing variable applied feed pressures to each stage. The results showed that the volumetric flow rate of the hypersaline draw solution increased by up to a factor of 10 during the MPRO process in single pass, and the concentration of the hypersaline draw solution diluted up to 10x accordingly.
published_date 2020-03-01T10:50:28Z
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score 11.059294

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