Enhanced modelling and experimental validation of ultra-low pressure reverse osmosis membrane system for treatment of synthetic brackish water

Water purification from brackish water sources has been acknowledged as one of the most promising ways to produce drinkable water in water-scarce areas. In this study, an ultra-low pressure reverse osmosis (ULPRO) membrane was numerically and experimentally investigated to produce drinking water by...

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Autores principales:	Saffa Syamimi Norizam, Mohd Azlan Hussain, Mohd Usman Mohd Junaidi
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	brackish water experimental validation modelling simulation ultra-low-pressure membrane Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/3dc44ca17074459c8dbb0a313be94adc
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spelling	oai:doaj.org-article:3dc44ca17074459c8dbb0a313be94adc2021-12-02T07:41:34ZEnhanced modelling and experimental validation of ultra-low pressure reverse osmosis membrane system for treatment of synthetic brackish water0273-12231996-973210.2166/wst.2021.442https://doaj.org/article/3dc44ca17074459c8dbb0a313be94adc2021-11-01T00:00:00Zhttp://wst.iwaponline.com/content/84/10-11/3372https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732Water purification from brackish water sources has been acknowledged as one of the most promising ways to produce drinkable water in water-scarce areas. In this study, an ultra-low pressure reverse osmosis (ULPRO) membrane was numerically and experimentally investigated to produce drinking water by the removal of sodium chloride salt which provides further validation of the model from a practical perspective. An enhanced predictive model based on the Donnan–Steric Pore Model with dielectric exclusion (DSPM-DE) incorporating the osmotic effects was formulated in process simulation. The feed pressure and concentration were optimized as input variables and interaction between them was observed, while salt rejection and water recovery rate were taken as response attributes. The results obtained on the ULPRO membrane showed that the performance depends on the charge, steric, and dielectric effects. Furthermore, the enhanced model was validated with the experimental data attained from a laboratory-scale filtration system with good accuracy in the salt rejection and water recovery results. Comparing the enhanced DSPM-DE with the existing solution diffusion model reveals that the enhanced model predicts the membrane performance better and thereby qualifies itself as a reliable model for desalination of brackish water using ULPRO membrane. HIGHLIGHTS An enhanced DSPM with a dielectric exclusion model for ULPRO membrane is developed.; Predicted ULPRO membrane performance for low operating pressure of 1 to 4 bar.; Predicted ULPRO membrane performance for brackish water at salinity up to 2,000 ppm.; Model validated through experimental data for salt rejection and water recovery with good accuracy.; Enhanced model predicts salt rejection better than using solution diffusion model.;Saffa Syamimi NorizamMohd Azlan HussainMohd Usman Mohd JunaidiIWA Publishingarticlebrackish waterexperimental validationmodellingsimulationultra-low-pressure membraneEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 10-11, Pp 3372-3387 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	brackish water experimental validation modelling simulation ultra-low-pressure membrane Environmental technology. Sanitary engineering TD1-1066
spellingShingle	brackish water experimental validation modelling simulation ultra-low-pressure membrane Environmental technology. Sanitary engineering TD1-1066 Saffa Syamimi Norizam Mohd Azlan Hussain Mohd Usman Mohd Junaidi Enhanced modelling and experimental validation of ultra-low pressure reverse osmosis membrane system for treatment of synthetic brackish water
description	Water purification from brackish water sources has been acknowledged as one of the most promising ways to produce drinkable water in water-scarce areas. In this study, an ultra-low pressure reverse osmosis (ULPRO) membrane was numerically and experimentally investigated to produce drinking water by the removal of sodium chloride salt which provides further validation of the model from a practical perspective. An enhanced predictive model based on the Donnan–Steric Pore Model with dielectric exclusion (DSPM-DE) incorporating the osmotic effects was formulated in process simulation. The feed pressure and concentration were optimized as input variables and interaction between them was observed, while salt rejection and water recovery rate were taken as response attributes. The results obtained on the ULPRO membrane showed that the performance depends on the charge, steric, and dielectric effects. Furthermore, the enhanced model was validated with the experimental data attained from a laboratory-scale filtration system with good accuracy in the salt rejection and water recovery results. Comparing the enhanced DSPM-DE with the existing solution diffusion model reveals that the enhanced model predicts the membrane performance better and thereby qualifies itself as a reliable model for desalination of brackish water using ULPRO membrane. HIGHLIGHTS An enhanced DSPM with a dielectric exclusion model for ULPRO membrane is developed.; Predicted ULPRO membrane performance for low operating pressure of 1 to 4 bar.; Predicted ULPRO membrane performance for brackish water at salinity up to 2,000 ppm.; Model validated through experimental data for salt rejection and water recovery with good accuracy.; Enhanced model predicts salt rejection better than using solution diffusion model.;
format	article
author	Saffa Syamimi Norizam Mohd Azlan Hussain Mohd Usman Mohd Junaidi
author_facet	Saffa Syamimi Norizam Mohd Azlan Hussain Mohd Usman Mohd Junaidi
author_sort	Saffa Syamimi Norizam
title	Enhanced modelling and experimental validation of ultra-low pressure reverse osmosis membrane system for treatment of synthetic brackish water
title_short	Enhanced modelling and experimental validation of ultra-low pressure reverse osmosis membrane system for treatment of synthetic brackish water
title_full	Enhanced modelling and experimental validation of ultra-low pressure reverse osmosis membrane system for treatment of synthetic brackish water
title_fullStr	Enhanced modelling and experimental validation of ultra-low pressure reverse osmosis membrane system for treatment of synthetic brackish water
title_full_unstemmed	Enhanced modelling and experimental validation of ultra-low pressure reverse osmosis membrane system for treatment of synthetic brackish water
title_sort	enhanced modelling and experimental validation of ultra-low pressure reverse osmosis membrane system for treatment of synthetic brackish water
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/3dc44ca17074459c8dbb0a313be94adc
work_keys_str_mv	AT saffasyamiminorizam enhancedmodellingandexperimentalvalidationofultralowpressurereverseosmosismembranesystemfortreatmentofsyntheticbrackishwater AT mohdazlanhussain enhancedmodellingandexperimentalvalidationofultralowpressurereverseosmosismembranesystemfortreatmentofsyntheticbrackishwater AT mohdusmanmohdjunaidi enhancedmodellingandexperimentalvalidationofultralowpressurereverseosmosismembranesystemfortreatmentofsyntheticbrackishwater
_version_	1718399216953327616

Enhanced modelling and experimental validation of ultra-low pressure reverse osmosis membrane system for treatment of synthetic brackish water

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