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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.18 [2011] >
IJCT Vol.18(2) [March 2011] >
| Title: | Application of mathematical empirical models to dynamic removal of lead on natural zeolite clinoptilolite in a fixed bed column |
| Authors: | Trgo, Marina
Medvidović, Nediljka Vukojević
Perić, Jelena |
| Keywords: | Zeolite clinoptilolite
Bohart-Adams model
Wolborska model
Thomas model
Yoon-Nelson model |
| Issue Date: | Mar-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | This study
examined the applicability of the mathematical empirical models by
Bohart-Adams, Wolborska, Thomas and Yoon-Nelson on lead removal from aqueous
solutions on a fixed bed of natural zeolite. Applicability of these models has
been evaluated by fitting the experimental breakthrough curves with the curves
obtained from the applied model. Experimental results have shown that the
values of removal capacities calculated from model are close to the value of
the experimentally obtained capacity at the exhaustion point. The Thomas and
Yoon-Nelson models have shown excellent fit for all examined range of the
breakthrough curves; therefore these models have been used for simulation of
breakthrough curves for different bed depths and flow rates. The results show
that the successful prediction is achieved when the empty bed contact time
(EBCT) was in the experimentally confirmable range. Among all examined models,
the Thomas model was found to be the most suitable one for simulation of the
breakthrough curve of lead uptake on fixed bed of natural zeolite in a wide
range of EBCT values. |
| Page(s): | 123-131 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.18(2) [March 2011]
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