| 摘要 |
PROBLEM TO BE SOLVED: To provide a purifying device for contaminated air being excellent in the efficiency of decomposing contaminates and capable of irradiating photocatalyst with sufficient ultraviolet radiation from a source of ultraviolet radiation to prevent the contaminated air from being released from a system without being processed, even if the contaminates in the air are at very low concentrations. SOLUTION: The purifying device for contaminated air has an air inflow port 4 and an air exhaust port 20 provided respectively below and above the device body 1, and a plurality of photo-oxidation reaction chambers 6 are formed in the lower portion of the device body 1. An activated charcoal filled layer 17 is formed thereabove. The photo-oxidation reaction chambers 6 partially filled with a granular photocatalyst 13 and the activated charcoal filled layer 17 filled with granular activated charcoal 16 are separated from each other by partition plates 5 and 15 each of which has a number of air holes therein. In each of the photo-oxidation reaction chambers 6, a triangular ultraviolet irradiation chamber 10 comprising a light-translucent vertical transparent plate 8 and an inclined transparent plate 9 is installed, with the source 12 of ultraviolet radiation disposed therein. |
