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Effect of solid concentration and impeller type on mixing operations in an agitated vessel
Published in Sphinx Knowledge House
Volume: 6
Issue: 7
Pages: 3665 - 3671
In the present work two mixing operations, adsorption and decomposition of carcinogenic methylene blue were performed in a flat bottomed mechanically agitated tank with a six-blade Rushton turbine (6DT) and a Pitched blade turbine (PBT). Both the operations were carried at Njs, which is the key process objective to make all the surface area of the solids available for mass transfer. The first operation involves the adsorption of eosin dye on Granular Activated Charcoal (GAC), which resulted in a 67% color removal. This work would help in designing systems for wastewater treatment. The second operation involves the photo catalytic effect of TiO2 on methylene blue to decompose it into carbon dioxide and water, which resulted in a 62.3% degradation of methylene blue. The work can be adopted by the textile industry in order to reduce the carcinogenic content of effluents, thus making it less of a health hazard. In both the cases, it is inferred that power required for a Pitched Blade turbine is significantly lower than that of Rushton turbine, also there is a linear rise in power required with increase in solid volume percent. © 2014, Sphinx Knowledge House. All rights reserved.
About the journal
JournalInternational Journal of ChemTech Research
PublisherSphinx Knowledge House
Open AccessNo