Correlations between silt density index, turbidity and oxidation-reduction potential parameters in seawater reverse osmosis desalination
The reverse osmosis method is one of the most widely used methods of seawater desalination at present. Hydrophilic and desalting membranes in reverse osmosis systems are highly susceptible to the input pollutants. Various contaminants, including suspended organic and inorganic matter, result in memb...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-06-01
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| Series: | Water Science and Engineering |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674237019300572 |
| _version_ | 1819042858089316352 |
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| author | Seyed Mohammad Hossein Fayaz Roya Mafigholami Fatemeh Razavian Karim Ghasemipanah |
| author_facet | Seyed Mohammad Hossein Fayaz Roya Mafigholami Fatemeh Razavian Karim Ghasemipanah |
| author_sort | Seyed Mohammad Hossein Fayaz |
| collection | DOAJ |
| description | The reverse osmosis method is one of the most widely used methods of seawater desalination at present. Hydrophilic and desalting membranes in reverse osmosis systems are highly susceptible to the input pollutants. Various contaminants, including suspended organic and inorganic matter, result in membrane fouling and membrane degradation. Fundamental parameters such as the turbidity, the amount of chlorine injection, and silt density index (SDI) are the most predominant parameters of fouling control in the membranes. In this study, the operation system included a water intake unit, a pretreatment system, and an RO system. The pretreatment system encompassed a clarifier, a gravity sand filter, pressurized sand filters, and a cartridge filter. The correlation between the amount of chlorine injection in terms of the oxidation-reduction potential (ORP) and the SDI value of the input water was investigated at a specified site next to the Persian Gulf. The results showed that, at certain intervals of inlet turbidity, injection of a certain amount of chlorine into the raw water has a distinct effect on the decrease of SDI. Keywords: Silt density index, Oxidation-reduction potential, Turbidity, Reverse osmosis, Membrane fouling |
| first_indexed | 2024-12-21T09:47:34Z |
| format | Article |
| id | doaj.art-0650ef7efbff430e9ce42dc6a69e6c20 |
| institution | Directory Open Access Journal |
| issn | 1674-2370 |
| language | English |
| last_indexed | 2024-12-21T09:47:34Z |
| publishDate | 2019-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Water Science and Engineering |
| spelling | doaj.art-0650ef7efbff430e9ce42dc6a69e6c202022-12-21T19:08:17ZengElsevierWater Science and Engineering1674-23702019-06-01122115120Correlations between silt density index, turbidity and oxidation-reduction potential parameters in seawater reverse osmosis desalinationSeyed Mohammad Hossein Fayaz0Roya Mafigholami1Fatemeh Razavian2Karim Ghasemipanah3Department of Environment, West Tehran Branch, Islamic Azad University, Tehran 1949663311, IranDepartment of Environment, West Tehran Branch, Islamic Azad University, Tehran 1949663311, Iran; Corresponding author.Department of Environment, Parand Branch, Islamic Azad University, Parand 3761396361, IranResearch Institute of Petroleum Industry, Tehran 1485733111, IranThe reverse osmosis method is one of the most widely used methods of seawater desalination at present. Hydrophilic and desalting membranes in reverse osmosis systems are highly susceptible to the input pollutants. Various contaminants, including suspended organic and inorganic matter, result in membrane fouling and membrane degradation. Fundamental parameters such as the turbidity, the amount of chlorine injection, and silt density index (SDI) are the most predominant parameters of fouling control in the membranes. In this study, the operation system included a water intake unit, a pretreatment system, and an RO system. The pretreatment system encompassed a clarifier, a gravity sand filter, pressurized sand filters, and a cartridge filter. The correlation between the amount of chlorine injection in terms of the oxidation-reduction potential (ORP) and the SDI value of the input water was investigated at a specified site next to the Persian Gulf. The results showed that, at certain intervals of inlet turbidity, injection of a certain amount of chlorine into the raw water has a distinct effect on the decrease of SDI. Keywords: Silt density index, Oxidation-reduction potential, Turbidity, Reverse osmosis, Membrane foulinghttp://www.sciencedirect.com/science/article/pii/S1674237019300572 |
| spellingShingle | Seyed Mohammad Hossein Fayaz Roya Mafigholami Fatemeh Razavian Karim Ghasemipanah Correlations between silt density index, turbidity and oxidation-reduction potential parameters in seawater reverse osmosis desalination Water Science and Engineering |
| title | Correlations between silt density index, turbidity and oxidation-reduction potential parameters in seawater reverse osmosis desalination |
| title_full | Correlations between silt density index, turbidity and oxidation-reduction potential parameters in seawater reverse osmosis desalination |
| title_fullStr | Correlations between silt density index, turbidity and oxidation-reduction potential parameters in seawater reverse osmosis desalination |
| title_full_unstemmed | Correlations between silt density index, turbidity and oxidation-reduction potential parameters in seawater reverse osmosis desalination |
| title_short | Correlations between silt density index, turbidity and oxidation-reduction potential parameters in seawater reverse osmosis desalination |
| title_sort | correlations between silt density index turbidity and oxidation reduction potential parameters in seawater reverse osmosis desalination |
| url | http://www.sciencedirect.com/science/article/pii/S1674237019300572 |
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