Please use this identifier to cite or link to this item: http://ir.futminna.edu.ng:8080/jspui/handle/123456789/17890
Title: Recalcitran Cibacron Red Dye Adsorption by Locally Sourced Dolomite Adsorbent
Authors: Auta, M.
Ahmad, M.A.
Hameed, B.H.
Keywords: Dolomite
Calcination
Adsorption
Cibacron Red dye
Characterization
Issue Date: 9-Feb-2012
Publisher: The 4th AUN/SEED - Net Regional Conference on Chemical Engineering
Abstract: Restorative step towards serene environment collapse was attempted by harnessing potentials of locally available dolomite material from Perak state in Malaysia. The dolomite material was of synthetic textile waste-waters containing reactive Cibacron Red dye (CBD) through batch adsorption studies which yielded a maximum adsorption capacity of 100 mg/g. Pseudo-firstorder and pseudo-second-order kinetic models studies administered on the adsorption process data revealed that both models described the process very well with pseudo-second-order model having an edge over pseudo-first-order model. Langmuir and Freundlich isotherms were suitable representation of the process more than Temkin isotherm model. Thermodynamic studies revealed that the adsorption process was spontaneous and endothermic in nature; and also, entropy of the process increased with increase in temperature of the system. Boundary layer and intra-particle diffusion steps were necessary for the adsorption of CBD on the adsorbent. The locally sourced dolomite adsorbent was found to be very good for removal of CBD from waste-waters and can be used adequately as a cheaper alternative to expensive commercial activated carbon
URI: http://repository.futminna.edu.ng:8080/jspui/handle/123456789/17890
Appears in Collections:Chemical Engineering

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