Adsorption treatment and recovery of the hazardous dye, Brilliant Blue FCF, over bottom ash and de-oiled soya

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TypeArticle
Journal titleJournal of Colloid And Interface Science
Volume293
Issue1
Pages1626; # of pages: 11
Subjectanalysis; CALCULATED; chemical; chemistry; Diffusion; kinetic; Kinetics; MECHANISMS; MODEL; PARAMETERS; solution; surface; SYSTEM; SYSTEMS; Temperature
AbstractTwo waste materials-bottom ash, a power plant waste, and de-oiled soya, an agricultural waste-are meticulously and successfully used as adsorbent for the removal and recovery of a hazardous triphenylmethane dye, Brilliant Blue FCF. Both the materials were characterized by chemical analysis, IR, DTA, SEM and XRD studies. Their physical characteristics like surface area, porosity, density and loss on ignition were also determined. The adsorption of the dye over both materials was achieved under different pH, adsorbate concentration, sieve size, adsorbent dosage, contact time and temperature, etc. conditions. For both the systems Langmuir and Freundlich adsorption isotherm models were applied and, based on these models, useful thermodynamic parameters were calculated. For both the adsorbents, the kinetic measurements indicate that the adsorption process follows first order kinetics and film diffusion and particle diffusion mechanisms are operative at lower and higher concentrations, respectively, in each case. By percolating the dye solution through fixed-bed columns the bulk removal of the Brilliant Blue FCF was carried out and necessary parameters were determined to find out the percentage saturation of both the columns. Recovery of Brilliant Blue FCF was made by eluting dilute NaOH of pH 11 through each column
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedNo
NRC numberGUPTA2006
NPARC number9387335
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Record identifierabf917a4-52f8-4d30-bd8a-34b28a1c0604
Record created2009-07-10
Record modified2016-05-09
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