Management of reverse osmosis concentrate by solar distillation
Disposal of rejected brine is a fundamental part of reverse osmosis desalination technology, it presents negative influences on the marine ecosystem due to the high salt content and the presence of other harmful chemicals in the concentrate. Solar distillation is a promising technology for brine man...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2022-08-01
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| Series: | Water Supply |
| Subjects: | |
| Online Access: | http://ws.iwaponline.com/content/22/8/6490 |
| _version_ | 1828176120960253952 |
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| author | Dalila Belhout Zahia Tigrine Emilian Florin Mosnegutu Ferhat Kamel Benabdelaziz |
| author_facet | Dalila Belhout Zahia Tigrine Emilian Florin Mosnegutu Ferhat Kamel Benabdelaziz |
| author_sort | Dalila Belhout |
| collection | DOAJ |
| description | Disposal of rejected brine is a fundamental part of reverse osmosis desalination technology, it presents negative influences on the marine ecosystem due to the high salt content and the presence of other harmful chemicals in the concentrate. Solar distillation is a promising technology for brine management. The main goal of this study was to treat high salinity solution of reverse osmosis desalination brine and to recover valuable resources while producing freshwater. The implementation of the study is through two phases: the first phase includes desalination by a reverse osmosis process to produce fresh water and the concentrated brine, while the second phase consists of recovering solid salts using the solar distillation. Thus, different experiments of desalination by reverse osmosis pilot and solar distillation were carried out under optimal experimental conditions. The obtained results showed that chlorides are the most dominant constituents in the composition of brines, while the daily water productivity contributed to around 80% of the total productivity of the solar system (volume of the water produced/m2/day) and the amount of salt crystallized by solar distillation represents 35 grams per liter of brine, this salt is greatly demanded in several sectors such as agriculture, industry, and others.
HIGHLIGHTS
Produce concentrated brine by the reverse osmosis desalination process.;
Provide and test the technical feasibility of recovering reject brine using solar distillation.;
Achieve zero liquid discharge and reduce the environmentally negative effects of brine on the ecosystem.;
Define the influence of the optimum operating parameters.;
Recover salt crystals of NaCl.; |
| first_indexed | 2024-04-12T04:38:43Z |
| format | Article |
| id | doaj.art-3a0abacd520645df8c378f91a59c39e0 |
| institution | Directory Open Access Journal |
| issn | 1606-9749 1607-0798 |
| language | English |
| last_indexed | 2024-04-12T04:38:43Z |
| publishDate | 2022-08-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Supply |
| spelling | doaj.art-3a0abacd520645df8c378f91a59c39e02022-12-22T03:47:43ZengIWA PublishingWater Supply1606-97491607-07982022-08-012286490650310.2166/ws.2022.269269Management of reverse osmosis concentrate by solar distillationDalila Belhout0Zahia Tigrine1Emilian Florin Mosnegutu2Ferhat Kamel Benabdelaziz3 Unité de Développement des Equipements Solaires, UDES/Centre de Développement des Energies Renouvelables, CDER, Bou-Ismail 42415, W. Tipaza, Algeria Unité de Développement des Equipements Solaires, UDES/Centre de Développement des Energies Renouvelables, CDER, Bou-Ismail 42415, W. Tipaza, Algeria Faculty of Engineering, Department-Environmental Engineering and Mechanical Engineering, ‘Vasile Alecsandri’ University of Bacau, Bacău, Romania Unité de Développement des Equipements Solaires, UDES/Centre de Développement des Energies Renouvelables, CDER, Bou-Ismail 42415, W. Tipaza, Algeria Disposal of rejected brine is a fundamental part of reverse osmosis desalination technology, it presents negative influences on the marine ecosystem due to the high salt content and the presence of other harmful chemicals in the concentrate. Solar distillation is a promising technology for brine management. The main goal of this study was to treat high salinity solution of reverse osmosis desalination brine and to recover valuable resources while producing freshwater. The implementation of the study is through two phases: the first phase includes desalination by a reverse osmosis process to produce fresh water and the concentrated brine, while the second phase consists of recovering solid salts using the solar distillation. Thus, different experiments of desalination by reverse osmosis pilot and solar distillation were carried out under optimal experimental conditions. The obtained results showed that chlorides are the most dominant constituents in the composition of brines, while the daily water productivity contributed to around 80% of the total productivity of the solar system (volume of the water produced/m2/day) and the amount of salt crystallized by solar distillation represents 35 grams per liter of brine, this salt is greatly demanded in several sectors such as agriculture, industry, and others. HIGHLIGHTS Produce concentrated brine by the reverse osmosis desalination process.; Provide and test the technical feasibility of recovering reject brine using solar distillation.; Achieve zero liquid discharge and reduce the environmentally negative effects of brine on the ecosystem.; Define the influence of the optimum operating parameters.; Recover salt crystals of NaCl.;http://ws.iwaponline.com/content/22/8/6490environmentseawater reverse osmosis brinesolar distillationsolid salts |
| spellingShingle | Dalila Belhout Zahia Tigrine Emilian Florin Mosnegutu Ferhat Kamel Benabdelaziz Management of reverse osmosis concentrate by solar distillation Water Supply environment seawater reverse osmosis brine solar distillation solid salts |
| title | Management of reverse osmosis concentrate by solar distillation |
| title_full | Management of reverse osmosis concentrate by solar distillation |
| title_fullStr | Management of reverse osmosis concentrate by solar distillation |
| title_full_unstemmed | Management of reverse osmosis concentrate by solar distillation |
| title_short | Management of reverse osmosis concentrate by solar distillation |
| title_sort | management of reverse osmosis concentrate by solar distillation |
| topic | environment seawater reverse osmosis brine solar distillation solid salts |
| url | http://ws.iwaponline.com/content/22/8/6490 |
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