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Photocatalytic Degradation of Organics in Municipal Treated Wastewater in a Re-Circulation Reactor
Mechanical & Industrial Engineering Department, Caledonian College of Engineering, Al Khoudh, Muscat, Sultanate of Oman
National Institute of Technology, Durgapur, India
Mechanical & Industrial Engineering Department, Caledonian College of Engineering, Al Khoudh, Muscat, Sultanate of Oman
Sultan Qaboos University, Al Khoudh, Muscat, Sultanate of Oman
- 1 Mechanical & Industrial Engineering Department, Caledonian College of Engineering, Al Khoudh, Muscat, Sultanate of Oman
- 2 National Institute of Technology, Durgapur, India
- 3 Mechanical & Industrial Engineering Department, Caledonian College of Engineering, Al Khoudh, Muscat, Sultanate of Oman
- 4 Sultan Qaboos University, Al Khoudh, Muscat, Sultanate of Oman
Journal of Environmental Protection·Volume 04 (2013)·Pages 1449–1452·Published 6 December 2013·DOI10.4236/jep.2013.412166
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Abstract
In this paper, an experimental investigation on the effect of parameters namely concentration, solar radiation intensity and exposure time on the photo oxidation of pollutants in secondary treated municipal wastewater has been presented. TiO 2 was used as the photo catalyst and the experiments were carried out in the month of February 2012 in Oman. The reactor was a glass tube constructed with the provision of adding a reflector. The results showed that photo catalytic treatment is very effective for dilute solutions and the presence of reflector enhances the photo degradation. The reduction in Chemical Oxygen Demand (COD) obtained at the experimental conditions of 0.007 m 3 /hr flow rate, 15° inclination angle and 1 g·L -1 TiO 2 dosage was 18%. The presence of the reflector increased the degradation to 25% at the above experimental conditions.
KeywordsCODMunicipal WastewaterPhoto CatalystSolar Radiation
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