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International Journal of Photoenergy
Volume 2013 (2013), Article ID 759268, 7 pages
http://dx.doi.org/10.1155/2013/759268
Research Article

Solar Photo-Fenton Degradation of Electro-Optical Industry Wastewater by a Pilot-Scale Fresnel Lens Assisted IPCC Reactor

Department of Safety, Health, and Environmental Engineering, National United University, Miao-Li 360, Taiwan

Received 10 August 2013; Revised 23 October 2013; Accepted 14 November 2013

Academic Editor: M. Swaminathan

Copyright © 2013 Wen-Shiuh Kuo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this study, a pilot-scale Fresnel lens mounted inclined plate curvature channel (IPCC) solar photo-Fenton reactor was well designed, established, and evaluated for the treatment of the electro-optical industry wastewater. Under an initial pH of 3.0, a [H2O2]0/COD0 ratio of 2, and a [H2O2]0/[Fe2+]0 ratio of 7.5 for a reaction time of 60 min, the COD of the wastewater could reach a reduction of 85–90% which meets the effluent standard of EPA, Taiwan (COD < 100 mg/L). In addition, it was found that solar light could be concentrated, which resulted in an increase in intensity for 1.89 to 3.76 times and the temperature of the wastewater could be raised for 8 to 16°C. Therefore, the residual COD of the electro-optical industry wastewater was also kept under 100 mg/L after a 60 min of treatment even in winter season. Furthermore, the microtoxicity of the wastewater was essentially removed. Accordingly, these results illustrated that the IPCC reactor showed a synergistic effect on the solar photo-Fenton process not only in effectively dealing with a large amount of industrial organic wastewater, but also in the sector of energy conservation in terms of effective utilization of solar energy.