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Metrics (View:79)- Optimum Processing Conditions for Pesticides Removal in Mandarine Orange Peel by Ultraviolet Rays and Photocatalytic Materials
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자외선과 광 촉매제를 이용한 감귤껍질 농약제거공정의 최적화
Received: Nov 22, 2010; Revised: Jan 05, 2011; Accepted: Jan 31, 2011
Published Online: Feb 28, 2011
Abatract
UV-C and -B types of lamps, and H2O2 as a photocatalytic material were applied to optimize processing conditions for pesticides removal in Mandarine orange peel. Factors to affect the removal of pestrcides were arranged as a function of irradiation temperature, irradiation time, and H2O2 spray concentration. The optimum processing conditions for the chloropyrifos and the EPN removals in Mandarine orange peel were irradiation time of 60 min, irradiation temperature of 45°C and H2O2 spray concentration of 1000 ppm. However, the optimum processing conditions for methidathion removal were 60 min of irradiation time, 40°C of irradiation temperature and 1000 ppm of H2O2 spray concentration. The residual percentages of chloropyrifos, EPN and methidathion were 46, 49 and 28% after above irradiation processing, respectively.