| 摘要 |
An FRP(Fiber-Reinforced Plastic) combination purifying tank is provided to prevent water quality from being deteriorated due to inactivation of microorganisms in winter, by installing a sensor and heating units within the purifying tank so as to maintain the optimal temperature of the purifying tank. An FRP combination purifying tank comprises a flow amount adjustment bath(1) for adjusting the flow amount of sewage and wastewater, plural contact aeration baths(2,3,4,5) contacted with air so that organic materials of the sewage and the wastewater are decomposed by microorganisms, and a precipitation bath(6) for precipitating precipitate containing the sewage and the wastewater. A temperature sensor(11) is installed at one side of the FRP combination purifying tank. A controller(12) is connected to the temperature sensor. A first heating unit is connected to the controller and installed within the flow amount adjustment bath. The first heating unit is operated or stopped according to control of the controller. A second heating unit is connected to the controller and installed within each of the contact aeration baths. The second heating unit is operated or stopped according to control of the controller. |
