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Photocatalytic Degradation of Organics in Municipal Treated Wastewater in a Re-Circulation Reactor

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DOI: 10.4236/jep.2013.412166    2,498 Downloads   3,485 Views   Citations

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. TiO2 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 m3/hr flow rate, 15° inclination angle and 1 g·L-1 TiO2 dosage was 18%. The presence of the reflector increased the degradation to 25% at the above experimental conditions.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

A. Cheriyan, J. Sarkar, F. Sheik and M. Baawain, "Photocatalytic Degradation of Organics in Municipal Treated Wastewater in a Re-Circulation Reactor," Journal of Environmental Protection, Vol. 4 No. 12, 2013, pp. 1449-1452. doi: 10.4236/jep.2013.412166.

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http://dx.doi.org/10.1016/j.rser.2013.03.053
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