| Summary: | 碩士 === 國立聯合大學 === 環境與安全衛生工程學系碩士班 === 107 === One of advanced oxidation processes (AOPs) - solar photocatalysis with partial shell-core Ag(0.1%)/P3HT(0.5%)@TiO2 as catalyst was used to treat phenol wastewater (10 mg/L) in this study. In order to reduce the energy consumption and operation cost of wastewater treatment, solar light would be used instead of UV lamps as an irradiation source. Moreover, a pilot-scale inclined plate curvature channel (IPCC) reactor was semi-continuous operated to treat phenol wastewater.
Results showed that the degradation efficiency of phenol in water (180 min) with Ag(0.1%)/P3HT(0.5%)@TiO2 as photocatalyst were 98.35%, 95.06%, 98.92%, and 99.89% in autumn, winter, spring, and summer (in which UVa+b intensity: 32.85, 27.80, 37.92, 45.86 W/m2, respectively; VIS intensity: 743.91, 723.05, 822.72,869.48 W/m2, respectively), respectively. The degradation efficiency of phenol in water were increased 28.79%, 32.78%, 22.29%, and 5.19%, respectively and phenol degradation rate (kphenol) were increased 2.94 times, 2.73times, 2.66 times, and 1.98 times, respectively in four season as compared to using TiO2 as photocatalyst.
With the assistance of Fresnel lens (39.5 cm L*39.5 cm W*2 mm T, Fresnel circle width: 0.5 mm, Facet depth: 0.2 mm, Fresnel circles: 395), solar light intensity (UVa+b) were increased approximately 1.86 to 2.34 times. Hence, the degradation efficiency of phenol in water (150 min) were increased 12.4%, 6.29%, 19.18%, and 2.72% in autumn, winter, spring, and summer season, respectively as compared to that without Fresnel lens.
Accordingly, it was showed that the Fresnel lens enhanced IPCC reactor would be a promising operation system for solar photocatalysis using partial shell-core Ag(0.1%)/P3HT(0.5%)@TiO2 as catalyst not only in effectively dealing with a large amount of industrial organic wastewater such as phenols wastewater, but also in the sector of energy conservation in terms of efficient utilization of solar energy.
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