Application and Optimization in Chromium-Contaminated Wastewater Treatment of the Reverse Osmosis Technology
Background: Chromium (Cr) is the most important element used to plate other metals and electroplating factories are still considered to be the most important industries which pollute the environment to this metal. This paper describes a study conducted to determine the efficiency of reverse-osmosi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Tehran University of Medical Sciences
2008-09-01
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| Series: | Iranian Journal of Public Health |
| Subjects: | |
| Online Access: | https://ijph.tums.ac.ir/index.php/ijph/article/view/2037 |
| _version_ | 1818866157219741696 |
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| author | A Ameri M Gholami F Vaezi M Rahimi M Mahmodi B Moosavi |
| author_facet | A Ameri M Gholami F Vaezi M Rahimi M Mahmodi B Moosavi |
| author_sort | A Ameri |
| collection | DOAJ |
| description | Background: Chromium (Cr) is the most important element used to plate other metals and electroplating factories are still considered to be the most important industries which pollute the environment to this metal. This paper describes a study conducted to determine the efficiency of reverse-osmosis (RO) as a membrane technique for removal of Cr from wastewater samples synthetically prepared to be similar to electroplating effluents.
Methods: The RO unit used in this study was a spiral wound module of 2521 TE made by a Korean CSM company. Synthetic wastewater samples containing Cr ions at various concentrations of 1 to 20 mg/L were prepared and subjected to treatment by RO, and quantitative analysis had been accomplished by a colorimetric method. Evaluation of optimized conditions of treatment had also been carried out by determining the effects of changing operating pressure, temperature and pHS of samples.
Results: Optimum conditions of Cr-treatment by RO in 10 g/L initial Cr concentration were determined to be in the pH range of 6 to 7 and in temperature of about 25ºC at an applied pressure of 200 psi.
Conclusion: Considering the efficiency of Cr removal which was as high as 99% at the optimized conditions it could be concluded that RO membrane process may be selected and developed as an effective alternative for treatment of metal-contaminated effluents of electroplating and similar industries. |
| first_indexed | 2024-12-19T10:58:59Z |
| format | Article |
| id | doaj.art-a04af4e1099c46f985baed35dddf93d6 |
| institution | Directory Open Access Journal |
| issn | 2251-6085 2251-6093 |
| language | English |
| last_indexed | 2024-12-19T10:58:59Z |
| publishDate | 2008-09-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Iranian Journal of Public Health |
| spelling | doaj.art-a04af4e1099c46f985baed35dddf93d62022-12-21T20:24:42ZengTehran University of Medical SciencesIranian Journal of Public Health2251-60852251-60932008-09-01373Application and Optimization in Chromium-Contaminated Wastewater Treatment of the Reverse Osmosis TechnologyA Ameri0M Gholami 1F Vaezi 2M Rahimi3M Mahmodi4B Moosavi5School of Public Health, Iran University of Medical Sciences, Tehran, IranSchool of Public Health, Iran University of Medical Sciences, Tehran, IranDept. of Environmental Health, School of Public Health, Medical Sciences/University of Tehran, IranSchool of Public Health, Iran University of Medical Sciences, Tehran, IranSchool of Public Health, Iran University of Medical Sciences, Tehran, IranSchool of Public Health, Iran University of Medical Sciences, Tehran, IranBackground: Chromium (Cr) is the most important element used to plate other metals and electroplating factories are still considered to be the most important industries which pollute the environment to this metal. This paper describes a study conducted to determine the efficiency of reverse-osmosis (RO) as a membrane technique for removal of Cr from wastewater samples synthetically prepared to be similar to electroplating effluents. Methods: The RO unit used in this study was a spiral wound module of 2521 TE made by a Korean CSM company. Synthetic wastewater samples containing Cr ions at various concentrations of 1 to 20 mg/L were prepared and subjected to treatment by RO, and quantitative analysis had been accomplished by a colorimetric method. Evaluation of optimized conditions of treatment had also been carried out by determining the effects of changing operating pressure, temperature and pHS of samples. Results: Optimum conditions of Cr-treatment by RO in 10 g/L initial Cr concentration were determined to be in the pH range of 6 to 7 and in temperature of about 25ºC at an applied pressure of 200 psi. Conclusion: Considering the efficiency of Cr removal which was as high as 99% at the optimized conditions it could be concluded that RO membrane process may be selected and developed as an effective alternative for treatment of metal-contaminated effluents of electroplating and similar industries.https://ijph.tums.ac.ir/index.php/ijph/article/view/2037Reverse Osmosis (RO)Electroplating- industryChromiumWastewater treatment |
| spellingShingle | A Ameri M Gholami F Vaezi M Rahimi M Mahmodi B Moosavi Application and Optimization in Chromium-Contaminated Wastewater Treatment of the Reverse Osmosis Technology Iranian Journal of Public Health Reverse Osmosis (RO) Electroplating- industry Chromium Wastewater treatment |
| title | Application and Optimization in Chromium-Contaminated Wastewater Treatment of the Reverse Osmosis Technology |
| title_full | Application and Optimization in Chromium-Contaminated Wastewater Treatment of the Reverse Osmosis Technology |
| title_fullStr | Application and Optimization in Chromium-Contaminated Wastewater Treatment of the Reverse Osmosis Technology |
| title_full_unstemmed | Application and Optimization in Chromium-Contaminated Wastewater Treatment of the Reverse Osmosis Technology |
| title_short | Application and Optimization in Chromium-Contaminated Wastewater Treatment of the Reverse Osmosis Technology |
| title_sort | application and optimization in chromium contaminated wastewater treatment of the reverse osmosis technology |
| topic | Reverse Osmosis (RO) Electroplating- industry Chromium Wastewater treatment |
| url | https://ijph.tums.ac.ir/index.php/ijph/article/view/2037 |
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