APPARATUS FOR DISPOSAL OF WASTE WATER AFTER TREATMENT OF NON-SILVER PHOTOSENSITIVE MATERIAL

PURPOSE:To improve the workability of a countermeasure when an abnormality occurs by providing means of detecting temperatures within a receiver and a control mechanism wherein a heater is switched on and/or off according to the result of the detection by the means. CONSTITUTION:While the present apparatus is operating, within an evaporating vessel 3, the level of a post-treatment waste water goes down gradually as the waste water is evaporated, but the water level is watched by a water level sensor 12 which regulates a solenoid valve 6 to open or close, maintaining a pre-determined range of the water level. If an overheat state occurs or bumping is caused by some reasons within the evaporating vessel 3, a temperature sensor 27 comes to detect the abnormality of the temperature in the upper space within the evaporating vessel 3, a control mechanism is caused to open one solenoid valve 21 and close another 24, the waste water in the evaporating vessel 3 is discharged into a sludge recovery tank 18, simultaneously an air inlet opening 23 is closed and thus it is prevented that the waste water in the evaporating vessel 3 would overflow therein, running through the air inlet opening 23 and into the outside. Furthermore, if a temperature sensor 37 detects that the temperature rises above a pre-determined level, the electric circuit to a heater 7 is cut off by means of a controller and an electromagnetic switch to bring the heating to a halt in the evaporating vessel 3.