| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum wastewater treatment device using a pump for an ejector also for a pump for wastewater treatment. SOLUTION: A plurality of sinks 21, 22, 23 are installed in a kitchen 20 and connected to disposers 10 respectively. A connecting pipe 3 is connected to a discharge port of the disposer 10 and provided with a feed pipe and a vacuum valve controller. A vacuum valve 4 is connected to a longitudinal drain pipe 6 via a rising pipe 25 and a drain lateral branch pipe 5. The rising pipe 25 and a tube are communicated with each other via a tube 26 and an opening/ closing valve 27 is provided in the tube 26. When the detection negative pressure of a pressure sensor 28 is excessive, the opening/closing valve 27 is opened. The longitudinal drain pipe 6 is connected to the inside of a flow rate regulating tank 50 to the ejector 55. The water is fed from a pump 51 also used for the water movement to the ejector 55.
|
