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Heterogeneous photocatalysis of real textile wastewater: Evaluation of reaction kinetics and characterization
Real textile wastewater collected from the cotton dyeing bath of a fabric dyeing and finishing plant was subjected to heterogeneous photocatalysis using Ag+ doped TiO2 under UV irradiation in a batch reactor. The photocatalysts were characterized by FESEM, XRD, EDS, FTIR, DRS and BET analyses. The kinetics of the reaction was also evaluated. Colour removal was more than 88%, 94% and 99%, respectively for undiluted, 2 times diluted and 5 times diluted wastewater with Ag+ doped TiO2 (2.5 g/L) after UV irradiation for 360 minutes. The COD removal for undiluted, 2 times diluted and 5 times diluted wastewater was 47%, 70% and 92%, respectively under similar conditions. The reaction followed Langmuir-Hinshelwood pseudo first order kinetic model and the data fitted well to polynomial regression analysis.
Heterogeneous photocatalysis of real textile wastewater: Evaluation of reaction kinetics and characterization
Real textile wastewater collected from the cotton dyeing bath of a fabric dyeing and finishing plant was subjected to heterogeneous photocatalysis using Ag+ doped TiO2 under UV irradiation in a batch reactor. The photocatalysts were characterized by FESEM, XRD, EDS, FTIR, DRS and BET analyses. The kinetics of the reaction was also evaluated. Colour removal was more than 88%, 94% and 99%, respectively for undiluted, 2 times diluted and 5 times diluted wastewater with Ag+ doped TiO2 (2.5 g/L) after UV irradiation for 360 minutes. The COD removal for undiluted, 2 times diluted and 5 times diluted wastewater was 47%, 70% and 92%, respectively under similar conditions. The reaction followed Langmuir-Hinshelwood pseudo first order kinetic model and the data fitted well to polynomial regression analysis.
Heterogeneous photocatalysis of real textile wastewater: Evaluation of reaction kinetics and characterization
Sahoo, Chittaranjan (author) / Gupta, Ashok K. (author) / Pillai, Indu M. Sasidharan (author)
Journal of Environmental Science and Health, Part A ; 47 ; 2109-2119
2012-11-01
11 pages
Article (Journal)
Electronic Resource
Unknown
| British Library Online Contents | 2015