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    • 4. 发明专利
    • Pump controller
    • JP4908333B2
    • 2012-04-04
    • JP2007174399
    • 2007-07-02
    • 株式会社東芝
    • 正彦 堤浩貴 武井泰彦 永森恭介 片山
    • C02F1/00E03F5/22F04B49/00F04B49/06
    • PROBLEM TO BE SOLVED: To provide a pump controller capable of performing pump control for keeping the quality of water discharged by a combined sewage disposal plant in such a specified water quality as to exert no effect on a public water area upon rainy days. SOLUTION: The pump controller comprises: a calculation means 103 for calculating an inflow pollution load concentration in sewage flowing into a pump well during a prescribed time and an inflow pollution load amount that flows-in from inflow pollution load determined based on the quality of sewage measured by a water quality sensor, inflow quantity of the sewage flowing into the pump well and rain quantity; a decision means 104 for deciding pollution load storage amount temporally stored in the pump well during the prescribed time based on the inflow pollution load concentration and the stored water quantity of the sewage; and a correction means 105 for correcting the start-setting water level based on the inflow pollution load amount and the pollution load storage amount. COPYRIGHT: (C)2009,JPO&INPIT