| 摘要 |
PROBLEM TO BE SOLVED: To provide a deodorizing device capable of eliminating clogging and hole closure caused by activated sludge by adopting a simple structure, and capable of removing an odor component highly efficiently.SOLUTION: A deodorizing device includes a sludge circulation tank in which activated sludge is stored, and a deodorization tower communicated with the sludge circulation tank. The deodorization tower includes: a nozzle for making the activated sludge flow down from an upper part into the deodorization tower from the sludge circulation tank through a pump; a guide part constituted by a plurality of first guide parts having a tilt peripheral surface downwardly tilted to the peripheral wall direction of the deodorization tower, and a plurality of second guide parts having a tilt peripheral surface tilted downwardly to the inside from the peripheral wall of the deodorization tower and opened in an almost center part thereof, and formed along the peripheral wall, wherein the first guide parts and the second guide parts are alternately arranged in a vertical direction so that the activated sludge flows downwardly; a raw odor inlet arranged below the guide part; and an air supply part for diffusing the raw odor and the activated sludge to an upper part by supplying air to the tilt peripheral surface of the first guide part. |
