Study the Axail Dispersion Model in Ion Exchange Column

A mathematical model is developed which predicates the performance of cylindrical ion exchange bed involving comparing of axial dispersion model for cation exchange column with different assumption, this model permits the performance to predicate the residence time within the bed with the variance,...

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Main Author: Iman Hahider Mahdi
Format: Article
Language:English
Published: Al-Khwarizmi College of Engineering – University of Baghdad 2009-12-01
Series:Al-Khawarizmi Engineering Journal
Online Access:http://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/577
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author Iman Hahider Mahdi
author_facet Iman Hahider Mahdi
author_sort Iman Hahider Mahdi
collection DOAJ
description A mathematical model is developed which predicates the performance of cylindrical ion exchange bed involving comparing of axial dispersion model for cation exchange column with different assumption, this model permits the performance to predicate the residence time within the bed with the variance, axial dispersion and Pecklet No. to indicated deviation from plug flow model.       Two type of systems are chosen for positive ions first with divalent ions (Ca+2) to exchange with resin of Na+1form used as application in  water softener units and second with monovalent ions (Na+1) to exchange with resin of H+1 form used as application in deionize water units  with two parameters effected in the operation of the two systems different flow rate and different feed concentration by their effect on axial dispersion  in each one where the system are compare from the performance which describe in term of breakthrough time other parameters (the time equivalent to usable capacity "tu" , time equivalent to equilibrium capacity "tt" and length of unused bed "HUNB") are calculated in the operation condition that with axial dispersion are very important in predicated the best condition to operation the cation exchange column as a softener and deionize units.
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spelling doaj.art-8621acbe7843421ab1aa65f7c6413a3b2022-12-21T20:41:05ZengAl-Khwarizmi College of Engineering – University of BaghdadAl-Khawarizmi Engineering Journal1818-11712312-07892009-12-0154Study the Axail Dispersion Model in Ion Exchange ColumnIman Hahider Mahdi0Department of Chemical Engineering/ Collage of Engineering/ Al- Nahreen UniversityA mathematical model is developed which predicates the performance of cylindrical ion exchange bed involving comparing of axial dispersion model for cation exchange column with different assumption, this model permits the performance to predicate the residence time within the bed with the variance, axial dispersion and Pecklet No. to indicated deviation from plug flow model.       Two type of systems are chosen for positive ions first with divalent ions (Ca+2) to exchange with resin of Na+1form used as application in  water softener units and second with monovalent ions (Na+1) to exchange with resin of H+1 form used as application in deionize water units  with two parameters effected in the operation of the two systems different flow rate and different feed concentration by their effect on axial dispersion  in each one where the system are compare from the performance which describe in term of breakthrough time other parameters (the time equivalent to usable capacity "tu" , time equivalent to equilibrium capacity "tt" and length of unused bed "HUNB") are calculated in the operation condition that with axial dispersion are very important in predicated the best condition to operation the cation exchange column as a softener and deionize units.http://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/577
spellingShingle Iman Hahider Mahdi
Study the Axail Dispersion Model in Ion Exchange Column
Al-Khawarizmi Engineering Journal
title Study the Axail Dispersion Model in Ion Exchange Column
title_full Study the Axail Dispersion Model in Ion Exchange Column
title_fullStr Study the Axail Dispersion Model in Ion Exchange Column
title_full_unstemmed Study the Axail Dispersion Model in Ion Exchange Column
title_short Study the Axail Dispersion Model in Ion Exchange Column
title_sort study the axail dispersion model in ion exchange column
url http://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/577
work_keys_str_mv AT imanhahidermahdi studytheaxaildispersionmodelinionexchangecolumn