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JSIR Vol.66 [2007] >
JSIR Vol.66(11) [November 2007] >
| Title: | Kinetic characterization of removal of As (III) by mixed adsorbents |
| Authors: | Singh, A P
Srivastava, K K
Shekhar, H |
| Keywords: | Activation energy of adsorption
Adsorption kinetics
Mixed adsorbents |
| Issue Date: | Nov-2007 |
| Publisher: | CSIR |
| Abstract: | Adsorption kinetics for removal of arsenic was carried out by red mud and its mixtures with haematite, china clay and fly ash besides china clay-fly ash at: adsorbate conc., 5.0 mg1-1; particle size of adsorbent, <53 μm; agitation rate, 220 rpm; pH, 8.0; and temp., 30, 40 & 50°C. Data fit into Lagergren equation and adsorption follows first order reaction kinetics. As(III) removal by adsorbents is diffusion controlled. A low value of activation energy indicates flat nature of energy barrier. |
| Page(s): | 952-956 |
| ISSN: | 0022-4456 |
| Source: | JSIR Vol.66(11) [November 2007]
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