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Comparison of the intrinsic parameters (A, B and S) of a forward Osmosis membrane using pressurized and non-pressurized methods

S.N.S.A. Aziz, A.F.H.A. Rahmana, Mazrul Abu Seman, Nidal Hilal

Desalination and Water Treatment, Volume: 129, Pages: 14 - 23

Swansea University Author: Nidal Hilal

DOI (Published version): 10.5004/dwt.2018.22811

Abstract

Generally, forward osmosis (FO) membrane performance is defined based on its intrinsic parameters, namely the water permeability (A), solute permeability (B), and structural parameter (S). This study was conducted to examine the performance of the commercial membrane NF2 in an FO system and to valid...

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Published in: Desalination and Water Treatment
Published: 2018
URI: https://cronfa.swan.ac.uk/Record/cronfa41019
first_indexed 2018-07-14T13:31:35Z
last_indexed 2018-11-13T14:14:05Z
id cronfa41019
recordtype SURis
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spelling 2018-11-13T08:14:47.8606465 v2 41019 2018-07-14 Comparison of the intrinsic parameters (A, B and S) of a forward Osmosis membrane using pressurized and non-pressurized methods 3acba771241d878c8e35ff464aec0342 Nidal Hilal Nidal Hilal true false 2018-07-14 Generally, forward osmosis (FO) membrane performance is defined based on its intrinsic parameters, namely the water permeability (A), solute permeability (B), and structural parameter (S). This study was conducted to examine the performance of the commercial membrane NF2 in an FO system and to validate and compare the intrinsic value of A, B, and S obtained by single stage-stage and two-stage methods. The NF2 membrane was unable to demonstrate a good configuration for an FO membrane due to its membrane structure. Comparing the two different orientations in the single-stage method, it appears that both orientations display distinct sets of intrinsic values for the same membrane type. A comparison on the two-stage methods between the pressure-retarded osmosis -FO and reverse osmosis (RO)-FO methods reveals a new standard for the two-stage methods where higher fluxes must be produced from the first stage in order to attain an accurate value of S at the second stage. Additionally, the RO-FO methods were found to be not relevant for testing the ability of a membrane for FO application due to the hydraulic pressure involved during the compaction procedure. The two-stage method with proposed new standards can be the ideal testing procedure for the membrane in FO applications. This is because all the intrinsic values can be separately determined considering all the possible concentration polarization that might occur with both orientations compared with the attempts of fitting all possible values in the generated equations, as in single-stage methods. Journal Article Desalination and Water Treatment 129 14 23 Intrinsic parameters; Forward osmosis; Single-stage method; Two-stage method; Concentration polarization 3 10 2018 2018-10-03 10.5004/dwt.2018.22811 COLLEGE NANME COLLEGE CODE Swansea University 2018-11-13T08:14:47.8606465 2018-07-14T08:05:26.7507061 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised S.N.S.A. Aziz 1 A.F.H.A. Rahmana 2 Mazrul Abu Seman 3 Nidal Hilal 4 0041019-03092018064302.pdf DWTproofs.pdf 2018-09-03T06:43:02.0470000 Output 796896 application/pdf Accepted Manuscript true 2019-09-03T00:00:00.0000000 true eng
title Comparison of the intrinsic parameters (A, B and S) of a forward Osmosis membrane using pressurized and non-pressurized methods
spellingShingle Comparison of the intrinsic parameters (A, B and S) of a forward Osmosis membrane using pressurized and non-pressurized methods
Nidal Hilal
title_short Comparison of the intrinsic parameters (A, B and S) of a forward Osmosis membrane using pressurized and non-pressurized methods
title_full Comparison of the intrinsic parameters (A, B and S) of a forward Osmosis membrane using pressurized and non-pressurized methods
title_fullStr Comparison of the intrinsic parameters (A, B and S) of a forward Osmosis membrane using pressurized and non-pressurized methods
title_full_unstemmed Comparison of the intrinsic parameters (A, B and S) of a forward Osmosis membrane using pressurized and non-pressurized methods
title_sort Comparison of the intrinsic parameters (A, B and S) of a forward Osmosis membrane using pressurized and non-pressurized methods
author_id_str_mv 3acba771241d878c8e35ff464aec0342
author_id_fullname_str_mv 3acba771241d878c8e35ff464aec0342_***_Nidal Hilal
author Nidal Hilal
author2 S.N.S.A. Aziz
A.F.H.A. Rahmana
Mazrul Abu Seman
Nidal Hilal
format Journal article
container_title Desalination and Water Treatment
container_volume 129
container_start_page 14
publishDate 2018
institution Swansea University
doi_str_mv 10.5004/dwt.2018.22811
college_str Faculty of Science and Engineering
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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 - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Generally, forward osmosis (FO) membrane performance is defined based on its intrinsic parameters, namely the water permeability (A), solute permeability (B), and structural parameter (S). This study was conducted to examine the performance of the commercial membrane NF2 in an FO system and to validate and compare the intrinsic value of A, B, and S obtained by single stage-stage and two-stage methods. The NF2 membrane was unable to demonstrate a good configuration for an FO membrane due to its membrane structure. Comparing the two different orientations in the single-stage method, it appears that both orientations display distinct sets of intrinsic values for the same membrane type. A comparison on the two-stage methods between the pressure-retarded osmosis -FO and reverse osmosis (RO)-FO methods reveals a new standard for the two-stage methods where higher fluxes must be produced from the first stage in order to attain an accurate value of S at the second stage. Additionally, the RO-FO methods were found to be not relevant for testing the ability of a membrane for FO application due to the hydraulic pressure involved during the compaction procedure. The two-stage method with proposed new standards can be the ideal testing procedure for the membrane in FO applications. This is because all the intrinsic values can be separately determined considering all the possible concentration polarization that might occur with both orientations compared with the attempts of fitting all possible values in the generated equations, as in single-stage methods.
published_date 2018-10-03T04:30:54Z
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score 11.04748

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