Modelling of chromium hexavalent reduction by ferrous ion in a batch stirred tank
In this paper mathematical models are proposed to simulate the dynamic behaviour of the reduction of Cr(VI) with Fe(II) in a batch stirred tank. Two approaches have been adopted to represent systems in non-equilibrium and quasi-equilibrium conditions. The models derived reflect the changes of the re...
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Chemical Product and Process Modeling
2009
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my.um.eprints.70382021-02-10T03:48:06Z http://eprints.um.edu.my/7038/ Modelling of chromium hexavalent reduction by ferrous ion in a batch stirred tank Aroua, M.K. Chew, C.M. Hussain, Mohd Azlan TA Engineering (General). Civil engineering (General) TP Chemical technology In this paper mathematical models are proposed to simulate the dynamic behaviour of the reduction of Cr(VI) with Fe(II) in a batch stirred tank. Two approaches have been adopted to represent systems in non-equilibrium and quasi-equilibrium conditions. The models derived reflect the changes of the relevant reactant species concentration based on the Oxidation Reduction Potential (ORP) of the system. An automated pilot plant has been designed and commissioned to carry out on-line/real time data acquisition and control for this Cr(VI) reduction process experimentally. Both the quasi-equilibrium and non-equilibrium models were validated experimentally. Simulated and on-line results indicate distinctive ORP profiles pattern for these two processes. The ORP profiles for non-equilibrium processes show a distinctive pattern which indicates the complete reduction of Cr(VI) in the batch sample. Chemical Product and Process Modeling 2009 Article PeerReviewed Aroua, M.K. and Chew, C.M. and Hussain, Mohd Azlan (2009) Modelling of chromium hexavalent reduction by ferrous ion in a batch stirred tank. Chemical Product and Process Modeling, 4 (1). ISSN 1934-2659 http://www.scopus.com/inward/record.url?eid=2-s2.0-77954558482&partnerID=40&md5=22665b21b8f8a153bb98b620dcc5b8df 10.2202/1934-2659.1222 |
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TA Engineering (General). Civil engineering (General) TP Chemical technology Aroua, M.K. Chew, C.M. Hussain, Mohd Azlan Modelling of chromium hexavalent reduction by ferrous ion in a batch stirred tank |
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In this paper mathematical models are proposed to simulate the dynamic behaviour of the reduction of Cr(VI) with Fe(II) in a batch stirred tank. Two approaches have been adopted to represent systems in non-equilibrium and quasi-equilibrium conditions. The models derived reflect the changes of the relevant reactant species concentration based on the Oxidation Reduction Potential (ORP) of the system. An automated pilot plant has been designed and commissioned to carry out on-line/real time data acquisition and control for this Cr(VI) reduction process experimentally. Both the quasi-equilibrium and non-equilibrium models were validated experimentally. Simulated and on-line results indicate distinctive ORP profiles pattern for these two processes. The ORP profiles for non-equilibrium processes show a distinctive pattern which indicates the complete reduction of Cr(VI) in the batch sample. |
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Article |
author |
Aroua, M.K. Chew, C.M. Hussain, Mohd Azlan |
author_facet |
Aroua, M.K. Chew, C.M. Hussain, Mohd Azlan |
author_sort |
Aroua, M.K. |
title |
Modelling of chromium hexavalent reduction by ferrous ion in a batch stirred tank |
title_short |
Modelling of chromium hexavalent reduction by ferrous ion in a batch stirred tank |
title_full |
Modelling of chromium hexavalent reduction by ferrous ion in a batch stirred tank |
title_fullStr |
Modelling of chromium hexavalent reduction by ferrous ion in a batch stirred tank |
title_full_unstemmed |
Modelling of chromium hexavalent reduction by ferrous ion in a batch stirred tank |
title_sort |
modelling of chromium hexavalent reduction by ferrous ion in a batch stirred tank |
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Chemical Product and Process Modeling |
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2009 |
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http://eprints.um.edu.my/7038/ http://www.scopus.com/inward/record.url?eid=2-s2.0-77954558482&partnerID=40&md5=22665b21b8f8a153bb98b620dcc5b8df |
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