| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a two-column packed column type biological deodorizing device capable of reducing an overall replenish water quantity and waste water quantity and economical and efficient. SOLUTION: In the two-column packed column type biological deodorizing device provided with a first biological packed column 1 having an acidic region biological layer 3 and a second biological packed column 2 having a neutral region biological layer 4 and removing smell components in gas by passing the gas containing malordorous components through the first biological packed column 1 and then passing the gas through the second biological packed column 2, a circulation type sprinkler means constituted of sprinkler tanks 5 and 6, sprinkler pumps 9 and 10 or sprinkler nozzles 9 and 10 is provided at each of two biological packed columns 1 and 2, and also two sprinkler tanks 5 and 6 of the two biological packed columns are connected with a communication pipe 35 provided with a water quantity control valve 36, and the supply of the replenish water from outside is executed only to the sprinkler tank 6 of the second biological packed column 2, and the supply of the replenish water to the sprinkler tank 5 of the first biological packed column 1 is executed from the sprinkler tank 6 of the second biological packed column 2 through the communication pipe 35.</p> |
