Physical and chemical assessment of MSF distillate and SWRO product for drinking purpose

Handle URI:
http://hdl.handle.net/10754/562112
Title:
Physical and chemical assessment of MSF distillate and SWRO product for drinking purpose
Authors:
Gacem, Yasmine; Taleb, Safia; Ramdani, Amina; Senadjki, Samia; Ghaffour, Noreddine ( 0000-0003-2095-4736 )
Abstract:
The objective of this study was to evaluate the physical and chemical proprieties of desalinated seawater produced by Multi Stage Flash (MSF) and Reverse Osmosis (RO) processes for drinking purpose. The final products, after post-treatment and blending, of Kahrama MSF and Bousfer SWRO plants located in different sites were investigated in this study. Different samples were taken from raw water and product before and after post-treatments in both plants. The physical and chemical balance revealed that the desalinated water produced by MSF plant is of better quality than that produced by the SWRO plant. The Langelier Saturation Index (LSI) was used as an indicator of the aggressiveness and corrosiveness of potable water. Indeed, the LSI of the distillate was slightly positive with over 77% of the values ranging from 0 to 0.13 while about 23% of the values were negative. This is due to the increase of MSF product water temperature from 29 °C to 33.82 °C during the investigation period and the calcium levels which decreased to a minimum value of 45.95. mg/l. On the other hand, the SWRO desalinated water had a negative LSI with values ranging from -3.27 to -1.85. These results are not within the recommended LSI values (between 0 and 0.4), which means that the product is highly aggressive and becomes improper for human consumption. These negative values are directly related to the RO product water temperature below 24.6 °C and calcium concentration below 16.03. mg/l as well as the lack of proper post-treatment process. From this investigation, it was recommended to improve the RO product post-treatment to make the remineralization process more effective. Some recommended guidelines suggested by the authors were presented in this paper. © 2012 Elsevier B.V.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Publisher:
Elsevier
Journal:
Desalination
Issue Date:
Mar-2012
DOI:
10.1016/j.desal.2012.01.014
Type:
Article
ISSN:
00119164
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorGacem, Yasmineen
dc.contributor.authorTaleb, Safiaen
dc.contributor.authorRamdani, Aminaen
dc.contributor.authorSenadjki, Samiaen
dc.contributor.authorGhaffour, Noreddineen
dc.date.accessioned2015-08-03T09:45:04Zen
dc.date.available2015-08-03T09:45:04Zen
dc.date.issued2012-03en
dc.identifier.issn00119164en
dc.identifier.doi10.1016/j.desal.2012.01.014en
dc.identifier.urihttp://hdl.handle.net/10754/562112en
dc.description.abstractThe objective of this study was to evaluate the physical and chemical proprieties of desalinated seawater produced by Multi Stage Flash (MSF) and Reverse Osmosis (RO) processes for drinking purpose. The final products, after post-treatment and blending, of Kahrama MSF and Bousfer SWRO plants located in different sites were investigated in this study. Different samples were taken from raw water and product before and after post-treatments in both plants. The physical and chemical balance revealed that the desalinated water produced by MSF plant is of better quality than that produced by the SWRO plant. The Langelier Saturation Index (LSI) was used as an indicator of the aggressiveness and corrosiveness of potable water. Indeed, the LSI of the distillate was slightly positive with over 77% of the values ranging from 0 to 0.13 while about 23% of the values were negative. This is due to the increase of MSF product water temperature from 29 °C to 33.82 °C during the investigation period and the calcium levels which decreased to a minimum value of 45.95. mg/l. On the other hand, the SWRO desalinated water had a negative LSI with values ranging from -3.27 to -1.85. These results are not within the recommended LSI values (between 0 and 0.4), which means that the product is highly aggressive and becomes improper for human consumption. These negative values are directly related to the RO product water temperature below 24.6 °C and calcium concentration below 16.03. mg/l as well as the lack of proper post-treatment process. From this investigation, it was recommended to improve the RO product post-treatment to make the remineralization process more effective. Some recommended guidelines suggested by the authors were presented in this paper. © 2012 Elsevier B.V.en
dc.publisherElsevieren
dc.subjectDesalinationen
dc.subjectDrinking water qualityen
dc.subjectLangelier Saturation Index (LSI)en
dc.subjectMSF distillateen
dc.subjectPost-treatmenten
dc.subjectSWRO permeateen
dc.titlePhysical and chemical assessment of MSF distillate and SWRO product for drinking purposeen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalDesalinationen
dc.contributor.institutionLaboratory of Materials and Catalysis, Faculty of Sciences, D. Liabès University, Sidi Bel- Abbès, Algeriaen
dc.contributor.institutionOran Drinking Water Distribution System (SEOR), Algeriaen
kaust.authorGhaffour, Noreddineen
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