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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemical engineering
Removal of dyes from wastewater using bottom ash
Industrial and Engineering Chemistry Research, Volume 44, No. 10, Year 2005
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Description
Municipal solid waste incinerator (MSWI) bottom ash was converted into a low-cost adsorbent, characterized and used for the removal of alizarin yellow, fast green, and methyl violet from wastewater. The percentages of removal of alizarin yellow (1.0 × 10-4 M), fast green (1.0 × 10 -4 M), and methyl violet (1.0 × 10-4 M) on this adsorbent were 87.5, 97.0, and 73.0, respectively. In batch experiments, parameters studied include the effect of the adsorbate concentration, pH, sorbent dosage, temperature, and contact time. The optimum contact time for all of the three dyes has been found to be 4 h, while the maximum adsorption was observed at pH 5.5, 5.0, and 8.0 for alizarin yellow, fast green, and methyl violet, respectively. The adsorbent dose has been optimized as 10.0 g/L for the three dyes. Kinetic studies showed a rate of adsorption of first order with respect to the dye solution concentration. Adsorption processes were found to be film-diffusion-controlled for all of the three dyes. Thermodynamic parameters such as free energy, enthalpy, and entropy of adsorption of the dye-bottom ash systems were also evaluated. © 2005 American Chemical Society.
Authors & Co-Authors
Gupta, Vinod Kumar
India, Roorkee
Indian Institute of Technology Roorkee
Ali, Imran
India, Haridwar
National Institute of Hydrology India
Saini, Vipin Kumar
India, Roorkee
Indian Institute of Technology Roorkee
van Gerven, Tom D.T.
Belgium, Leuven
Ku Leuven
van der Bruggen, Bart
Belgium, Leuven
Ku Leuven
Statistics
Citations: 234
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.1021/ie0500220
ISSN:
08885885