Effect of feed temperature on concentration polarization and efficiency of reverse osmosis systems
The objective of the present study was to investigate the effect of temperature in order to improve the efficiency of the RO desalination process, and analyze the concentration polarization in spiral wound salinity water membrane elements. In this study the commercial reverse osmosis membrane (ce...
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Format: | Article |
Language: | English |
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Al-Nahrain Journal for Engineering Sciences
2008-03-01
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Series: | مجلة النهرين للعلوم الهندسية |
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Online Access: | https://nahje.com/index.php/main/article/view/506 |
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author | Taha Yaseen Khalaf |
author_facet | Taha Yaseen Khalaf |
author_sort | Taha Yaseen Khalaf |
collection | DOAJ |
description | The objective of the present study was to investigate the effect of temperature in order to improve the efficiency of the RO desalination process, and analyze the
concentration polarization in spiral wound salinity water membrane elements. In this study the commercial reverse osmosis membrane (cellulose acetate) have been used to treat medium concentrated (NaCl) salt solutions up to 1200 ppm. The results of the experiments show that the polymer membrane is very sensitive to changes in the feed temperature, and the concentration polarization variation with increase in flow rate and with decrease in temperature. The nonlinear equation obtained is solved numerically using the Marquardt method to determine various parameters. The k values estimated from the model show a marked
variation that may be attributed to the presence of reflection coefficient in the Spiegler-Kedem model. It is suggested that the combined Spiegler- Kedem/film theory model may be the best method for establishing the mass transfer correlation for a given membrane of reverse osmosis and nanofiltration. |
first_indexed | 2024-12-21T12:52:38Z |
format | Article |
id | doaj.art-cc5d0841721f4417a50d108a614b8be8 |
institution | Directory Open Access Journal |
issn | 2521-9154 2521-9162 |
language | English |
last_indexed | 2024-12-21T12:52:38Z |
publishDate | 2008-03-01 |
publisher | Al-Nahrain Journal for Engineering Sciences |
record_format | Article |
series | مجلة النهرين للعلوم الهندسية |
spelling | doaj.art-cc5d0841721f4417a50d108a614b8be82022-12-21T19:03:27ZengAl-Nahrain Journal for Engineering Sciencesمجلة النهرين للعلوم الهندسية2521-91542521-91622008-03-01111145152506Effect of feed temperature on concentration polarization and efficiency of reverse osmosis systemsTaha Yaseen Khalaf0Biomedical Dngineering Dept./ Al-Khwarizmi Engineering College / University Of BaghdadThe objective of the present study was to investigate the effect of temperature in order to improve the efficiency of the RO desalination process, and analyze the concentration polarization in spiral wound salinity water membrane elements. In this study the commercial reverse osmosis membrane (cellulose acetate) have been used to treat medium concentrated (NaCl) salt solutions up to 1200 ppm. The results of the experiments show that the polymer membrane is very sensitive to changes in the feed temperature, and the concentration polarization variation with increase in flow rate and with decrease in temperature. The nonlinear equation obtained is solved numerically using the Marquardt method to determine various parameters. The k values estimated from the model show a marked variation that may be attributed to the presence of reflection coefficient in the Spiegler-Kedem model. It is suggested that the combined Spiegler- Kedem/film theory model may be the best method for establishing the mass transfer correlation for a given membrane of reverse osmosis and nanofiltration.https://nahje.com/index.php/main/article/view/506reverse osmosis systemsconcentration polarization |
spellingShingle | Taha Yaseen Khalaf Effect of feed temperature on concentration polarization and efficiency of reverse osmosis systems مجلة النهرين للعلوم الهندسية reverse osmosis systems concentration polarization |
title | Effect of feed temperature on concentration polarization and efficiency of reverse osmosis systems |
title_full | Effect of feed temperature on concentration polarization and efficiency of reverse osmosis systems |
title_fullStr | Effect of feed temperature on concentration polarization and efficiency of reverse osmosis systems |
title_full_unstemmed | Effect of feed temperature on concentration polarization and efficiency of reverse osmosis systems |
title_short | Effect of feed temperature on concentration polarization and efficiency of reverse osmosis systems |
title_sort | effect of feed temperature on concentration polarization and efficiency of reverse osmosis systems |
topic | reverse osmosis systems concentration polarization |
url | https://nahje.com/index.php/main/article/view/506 |
work_keys_str_mv | AT tahayaseenkhalaf effectoffeedtemperatureonconcentrationpolarizationandefficiencyofreverseosmosissystems |