| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solar drying floor for reducing the amount of discharging dried sludge and facilitating the discharge. <P>SOLUTION: A supernatant water discharge device 10 used for a solar drying floor in which water containing sludge is dried by sun which is input into a storage tank 11 includes: a supernatant water discharge pipe 101 having a supernatant water discharge port for discharging supernatant water separated from the water containing sludge input inside of the storage tank; a sensor 102 for measuring water level of the supernatant water in the storage tank; and a controller for controlling the height of the supernatant water discharge port which discharges the supernatant water corresponding to the water level measured by the sensor. <P>COPYRIGHT: (C)2012,JPO&INPIT |
