METHOD FOR CONTROLLER STORAGE IN PIPE IN SEWER TREATMENT

摘要

PURPOSE:To prevent the quality deterioration of sewage stored in a sewer pipe and the increase of load during rainfall by storing the daily fluctuation pattern of the rate of inflow sewage and adjusting the height of an inflow gate provided in the outflow part of the sewer pipe according to the fluctuation of the rate of inflow sewage. CONSTITUTION:The daily fluctuation pattern of the rate of inflow sewage is determined and said pattern is preliminarily stored in an average value storage device 10 in a sewage treatment to store the sewage in the sewer pipe 1 and to control the rate of the sewage flowing into a sewage treatment plant 5. The height of the inflow gate 2 provided in the outflow part of the sewer pipe 1 is so adjusted by an inflow gate control device 11 as to maintain the gate 2 at the lowest level when the rate of inflow sewage stored in the device 10 is of the min. value and to maintain the gate 2 at the highest level when the rate of inflow sewage is of the max. value. As a result, the quality deterioration of the sewage stored in the pipe, the increase of the load during rainfall and the incorrect value indicated on a meter are prevented.