| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas cleaning device capable of simultaneously realizing the removal of nitrogen oxides and the countermeasure for noise, always exhibiting its function for removing the nitrogen oxides regardless of the weather or the time zone, and further effectively removing the nitrogen oxides such as NO or NO2. SOLUTION: The gas cleaning device S1 has a first gas cleaning unit group T comprising a gas cleaning/noise absorbing part having such a structure that a photocatalyst is fixed t least on the front surface and the rear surface of a noise-absorbing member with a gas permeability and a noise absorption function, a suction pump 140 for sucking gas in the first gas cleaning unit group T and a second gas cleaning unit 150 for removing remaining nitrogen oxides not removed at the first gas cleaning unit group T by using oil. |
