Application of ion exchange and Air Stripping Methods to remove ammonium in recirculation fish culture system effluents

Increase in water pH in recirculation fish culture systems turns ammonium into ammonia which can kill fish even in low concentrations. The purpose of this study was to apply ion exchange and air stripping methods to remove ammonium in effluents of recirculation fish culture systems. Ion exchange met...

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Main Author: A. Rahmani; H. Ehsani
Format: Article
Language:fas
Published: Iranian Fisheries Research Organization 2007-01-01
Series:‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān
Subjects:
Online Access:http://isfj.areo.ir/article_113978_en.html
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spelling doaj-77006aefb23c4b79a5968641a7f4dc992020-11-24T21:49:07ZfasIranian Fisheries Research Organization‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān1026-13542322-59982007-01-011521928Application of ion exchange and Air Stripping Methods to remove ammonium in recirculation fish culture system effluentsA. Rahmani; H. EhsaniIncrease in water pH in recirculation fish culture systems turns ammonium into ammonia which can kill fish even in low concentrations. The purpose of this study was to apply ion exchange and air stripping methods to remove ammonium in effluents of recirculation fish culture systems. Ion exchange method was done using Graded Zeolite Clinoptilolite from Semnan Province to remove ammonium and air stripping was applied to zap ammonium from Zeoilte. Regeneration tests were conducted in which known weights of ammonium saturated Clinoptilolite were contacted with 1 normal concentration of CINa solution. Different concentrations of ammonium were selected and the effects of temperature and pH in releasing ammonia were also investigated. Results show that the cation exchange capacities in continuous systems were 7.61 to 11.22 (in breakthrough point) and 16.31 to 19.5mg ammonium per gram of ion exchanger as total capacity. The results of regeneration experiments by NaCI (1 normal) solution proved.....http://isfj.areo.ir/article_113978_en.htmlsolutionZeolitepurposefish
collection DOAJ
language fas
format Article
sources DOAJ
author A. Rahmani; H. Ehsani
spellingShingle A. Rahmani; H. Ehsani
Application of ion exchange and Air Stripping Methods to remove ammonium in recirculation fish culture system effluents
‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān
solution
Zeolite
purpose
fish
author_facet A. Rahmani; H. Ehsani
author_sort A. Rahmani; H. Ehsani
title Application of ion exchange and Air Stripping Methods to remove ammonium in recirculation fish culture system effluents
title_short Application of ion exchange and Air Stripping Methods to remove ammonium in recirculation fish culture system effluents
title_full Application of ion exchange and Air Stripping Methods to remove ammonium in recirculation fish culture system effluents
title_fullStr Application of ion exchange and Air Stripping Methods to remove ammonium in recirculation fish culture system effluents
title_full_unstemmed Application of ion exchange and Air Stripping Methods to remove ammonium in recirculation fish culture system effluents
title_sort application of ion exchange and air stripping methods to remove ammonium in recirculation fish culture system effluents
publisher Iranian Fisheries Research Organization
series ‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān
issn 1026-1354
2322-5998
publishDate 2007-01-01
description Increase in water pH in recirculation fish culture systems turns ammonium into ammonia which can kill fish even in low concentrations. The purpose of this study was to apply ion exchange and air stripping methods to remove ammonium in effluents of recirculation fish culture systems. Ion exchange method was done using Graded Zeolite Clinoptilolite from Semnan Province to remove ammonium and air stripping was applied to zap ammonium from Zeoilte. Regeneration tests were conducted in which known weights of ammonium saturated Clinoptilolite were contacted with 1 normal concentration of CINa solution. Different concentrations of ammonium were selected and the effects of temperature and pH in releasing ammonia were also investigated. Results show that the cation exchange capacities in continuous systems were 7.61 to 11.22 (in breakthrough point) and 16.31 to 19.5mg ammonium per gram of ion exchanger as total capacity. The results of regeneration experiments by NaCI (1 normal) solution proved.....
topic solution
Zeolite
purpose
fish
url http://isfj.areo.ir/article_113978_en.html
work_keys_str_mv AT arahmanihehsani applicationofionexchangeandairstrippingmethodstoremoveammoniuminrecirculationfishculturesystemeffluents
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