Akhtar, J. and Imran, M. and Zahoor, M. K. and Amin, N. S. (2016) Granular activated carbon assisted ozonation of cephalexin antibiotic. Journal of the Chemical Society of Pakistan, 38 (6). pp. 1056-1063. ISSN 0253-5106
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Abstract
This study investigates removal of cephalexin using ozonation in the presence of granular activated carbon. Initial experiments were carried out about adsorption of cephalexin onto granular activated carbon, effect of catalytic ozonation, and biodegradability of cephalexin solution. The effect of ozonation on pH, ozone utilization efficiency and decomposition byproducts, was observed. Response surface methodology was adopted to optimize three operating parameters pH of solution, ozone supply and cephalexin concentration. GAC assisted ozonation, was found to be effective in decomposing COD (chemical oxygen demand) and cephalexin from solution. Optimum values of variables were pH from 7-8, ozone supply 30 mg/L and 100 mg/L of cephalexin solution. The complete removal of cephalexin and 60% COD removal was achieved at these optimum input values.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Activated carbon, Cephalexin, COD, Optimization, Ozonation, Response surface methodology, Water treatment |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical Engineering |
| ID Code: | 74507 |
| Deposited By: | Fazli Masari |
| Deposited On: | 29 Nov 2017 23:58 |
| Last Modified: | 29 Nov 2017 23:58 |
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