Use of modified Heulandite by cationic surfactant as new adsorbent for removing anions from recirculation aquaculture system
Water treatment in recirculation aquaculture systems (RAS) is one of the main methods in water quality management. In organic Ion exchange materials are used only for ammonia adsorption in rearing systems. Zeolites have negative charge in their surfaces and this property capable them to remove cations and metal ions. At this study by using a cationic surfactant (Tetradecyltrimethylamonium bromide) clinoptilolite surface for removing nitrogenous compound is changed. Studied zeolite was analysed by XRD and XRF. Results indicated that Heulandit was the main element in the sample. Experiment was done at three replicates under environmental conditions (temperature (10, 15 and 20) and pH (6, 6.5, 7, 7.5 and 8)). Results indicated that environmental factors influenced absorption capacity. Results showed that increased in temperature have significant effect on nitrate and nitrite removal by SMZ (P<0/05).Temperature cause Increasing in anion mobility and finally anion adsorption. pH have significant effect on nitrate adsorption (P<0/05) while any regular trend didn’t observe about nitrite. Increasing pH cause increase in ionization degree and adsorption. Results indicated that other factor such as anion concentration, existing other anions and counter ions impressed adsorption.
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Format: | Journal Contribution biblioteca |
Language: | Persian |
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2012
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Subjects: | Recirculation aquaculture system, Modified zeolite, Surfactant, Nitrogenous compounds, Anion adsorption, |
Online Access: | http://hdl.handle.net/1834/13445 |
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dig-aquadocs-1834-134452021-05-19T06:53:19Z Use of modified Heulandite by cationic surfactant as new adsorbent for removing anions from recirculation aquaculture system Saljoghi, Zoheir Shokouh Malekpour, Akbar Bakhtiary, Majid Imani, Ahmad Ashrafzadeh, Mohammad Reza Moheiseni, Mohammad Recirculation aquaculture system Modified zeolite Surfactant Nitrogenous compounds Anion adsorption Water treatment in recirculation aquaculture systems (RAS) is one of the main methods in water quality management. In organic Ion exchange materials are used only for ammonia adsorption in rearing systems. Zeolites have negative charge in their surfaces and this property capable them to remove cations and metal ions. At this study by using a cationic surfactant (Tetradecyltrimethylamonium bromide) clinoptilolite surface for removing nitrogenous compound is changed. Studied zeolite was analysed by XRD and XRF. Results indicated that Heulandit was the main element in the sample. Experiment was done at three replicates under environmental conditions (temperature (10, 15 and 20) and pH (6, 6.5, 7, 7.5 and 8)). Results indicated that environmental factors influenced absorption capacity. Results showed that increased in temperature have significant effect on nitrate and nitrite removal by SMZ (P<0/05).Temperature cause Increasing in anion mobility and finally anion adsorption. pH have significant effect on nitrate adsorption (P<0/05) while any regular trend didn’t observe about nitrite. Increasing pH cause increase in ionization degree and adsorption. Results indicated that other factor such as anion concentration, existing other anions and counter ions impressed adsorption. Published 2018-08-01T05:29:04Z 2018-08-01T05:29:04Z 2012 Journal Contribution Refereed 2008-8965 http://hdl.handle.net/1834/13445 fa pp.69-78 Iran |
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Recirculation aquaculture system Modified zeolite Surfactant Nitrogenous compounds Anion adsorption Recirculation aquaculture system Modified zeolite Surfactant Nitrogenous compounds Anion adsorption |
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Recirculation aquaculture system Modified zeolite Surfactant Nitrogenous compounds Anion adsorption Recirculation aquaculture system Modified zeolite Surfactant Nitrogenous compounds Anion adsorption Saljoghi, Zoheir Shokouh Malekpour, Akbar Bakhtiary, Majid Imani, Ahmad Ashrafzadeh, Mohammad Reza Moheiseni, Mohammad Use of modified Heulandite by cationic surfactant as new adsorbent for removing anions from recirculation aquaculture system |
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Water treatment in recirculation aquaculture systems (RAS) is one of the main methods in water quality management. In organic Ion exchange materials are used only for ammonia adsorption in rearing systems. Zeolites have negative charge in their surfaces and this property capable them to remove cations and metal ions. At this study by using a cationic surfactant (Tetradecyltrimethylamonium bromide) clinoptilolite surface for removing nitrogenous compound is changed. Studied zeolite was analysed by XRD and XRF. Results indicated that Heulandit was the main element in the sample. Experiment was done at three replicates under environmental conditions (temperature (10, 15 and 20) and pH (6, 6.5, 7, 7.5 and 8)). Results indicated that environmental factors influenced absorption capacity. Results showed that increased in temperature have significant effect on nitrate and nitrite removal by SMZ (P<0/05).Temperature cause Increasing in anion mobility and finally anion adsorption. pH have significant effect on nitrate adsorption (P<0/05) while any regular trend didn’t observe about nitrite. Increasing pH cause increase in ionization degree and adsorption. Results indicated that other factor such as anion concentration, existing other anions and counter ions impressed adsorption. |
format |
Journal Contribution |
topic_facet |
Recirculation aquaculture system Modified zeolite Surfactant Nitrogenous compounds Anion adsorption |
author |
Saljoghi, Zoheir Shokouh Malekpour, Akbar Bakhtiary, Majid Imani, Ahmad Ashrafzadeh, Mohammad Reza Moheiseni, Mohammad |
author_facet |
Saljoghi, Zoheir Shokouh Malekpour, Akbar Bakhtiary, Majid Imani, Ahmad Ashrafzadeh, Mohammad Reza Moheiseni, Mohammad |
author_sort |
Saljoghi, Zoheir Shokouh |
title |
Use of modified Heulandite by cationic surfactant as new adsorbent for removing anions from recirculation aquaculture system |
title_short |
Use of modified Heulandite by cationic surfactant as new adsorbent for removing anions from recirculation aquaculture system |
title_full |
Use of modified Heulandite by cationic surfactant as new adsorbent for removing anions from recirculation aquaculture system |
title_fullStr |
Use of modified Heulandite by cationic surfactant as new adsorbent for removing anions from recirculation aquaculture system |
title_full_unstemmed |
Use of modified Heulandite by cationic surfactant as new adsorbent for removing anions from recirculation aquaculture system |
title_sort |
use of modified heulandite by cationic surfactant as new adsorbent for removing anions from recirculation aquaculture system |
publishDate |
2012 |
url |
http://hdl.handle.net/1834/13445 |
work_keys_str_mv |
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1756076592822484992 |