| 摘要 |
<p>PROBLEM TO BE SOLVED: To effectively perform deodorization by allowing an offensive odor component to efficiently react with ozone in the case of supplying ozone to the inside of a treatment tank in which septic treatment of drainage is performed and allowing ozone to react with the offensive odor component of drainage and performing deodorization. SOLUTION: The drainage septic tank facility 10 is constituted so that drainage is allowed to flow into the inside of a septic tank 12 equipped with a flow rate regulation tank 14, an aeration tank 18 and a settling tank 20 and successively moved through the respective tanks 14, 18, 20 and discharged after performing septic treatment. In this case, the upper space of the septic tank 12 is made to reaction space and ozone is supplied thereto. An offensive odor component generated from drainage is allowed to react with ozone and deodorized and also ozone is convergently supplied to the space of the upper part of the flow rate regulation tank 14 in which offensive odor is uppermost generated in the septic tank 12. Further, the route of exhaust gas in the septic tank 12 is made so that exhaust gas successively flows from a part with plenty offensive odor to a part with little offensive odor. Supplied ozone is allowed to react with the offensive odor component in the septic tank 12 while transferring the supplied ozone from a part generating plenty offensive odor to a part generating little offensive odor.</p> |
