AEROBIC TREATMENT OF WASTE WATER CONTAINING ORGANIC MATTER AND ITS AEROBIC TREATING DEVICE

摘要

PURPOSE: To realize the inexpensive aerobic treatment and its device with a small-sized aerobic treating tank, with no need for a setting space, capable of reducing the construction cost, initial cost and running cost, excellent in operability in adjusting the air amt., without need for intricate operation and control and suitable to mass production. CONSTITUTION: The waste water contg. org. matter is passed through an inflow transfer pipe 1, introduced into an aerobic treating tank 2 and further decomposed by the aerobe held in a filter bed 3. The waste water in the tank 2 is sucked by a booster pump 4 from a suction port 5 through a suction pipeline 6, air is sucked from an air suction port 7 and mixed with the waste water, and the mixture is pressurized. The air not dissolved in the waste water and left is discharged outside the system from an air vent valve, and the water having dissolved air under pressure is passed through a discharge pipeline 9 and discharged into the aerobic treating tank 1 from a fine-bubble nozzle 10. The treated water is discharged into the succeeding tank from a discharge and transfer pipe 11.