Control device, liquid processing system, control method, and control program

Abstract

The purpose is to control the water level in the destination tank while resolving pump blockages when transferring liquids to be processed using a pump. [Solution] The control device includes a processor, which samples the water level of a second tank to which the liquid to be treated stored in a first tank is transferred at a predetermined period, statistically processes the sampled water level data over a predetermined period, and intermittently controls the pump that transfers the liquid to be treated so that the ON time interval does not exceed a predetermined standard based on the statistically processed value.

Claims

1. The processor comprises, The water level of the second tank, to which the liquid to be treated stored in the first tank is transferred, is sampled at predetermined intervals. The water level data obtained by sampling the aforementioned water level is statistically processed over a predetermined period. Based on the statistically processed values, the pump that transfers the liquid to be treated is intermittently controlled so that the ON time interval does not exceed a predetermined standard. Control device.

2. The processor intermittently controls the pump such that the ON time interval is shorter than the period. The control device according to claim 1.

3. The processor performs the sampling and statistical processing at least at the timing when the pump is turned off. The control device according to claim 2.

4. The processor performs an averaging process on the water level data. The control device according to claim 1.

5. The first tank and, The second tank and, A control device according to any one of claims 1 to 4, comprising: Liquid processing system.

6. The liquid to be treated is wastewater. The first tank described above is a drainage adjustment tank for temporarily storing the wastewater, The second tank is a biological treatment tank that uses microorganisms to purify the wastewater. The liquid treatment system according to claim 5.

7. The second tank is provided with an air supply device. The liquid treatment system according to claim 6.

8. Computers The water level of the second tank, to which the liquid to be treated stored in the first tank is transferred, is sampled at predetermined intervals. The water level data obtained by sampling the aforementioned water level is statistically processed over a predetermined period, The system includes intermittently controlling the pump that transfers the liquid to be treated so that the ON time interval does not exceed a predetermined standard, based on the statistically processed values. Control method.

9. On the computer, A process of sampling the water level of a second tank, which is the destination to which the liquid to be treated stored in the first tank is transferred, at predetermined intervals, The process involves statistically processing the water level data obtained by sampling the aforementioned water level over a predetermined period of time, Based on the statistically processed values, the process of intermittently controlling the pump that transfers the liquid to be treated so that the ON time interval does not exceed a predetermined standard is executed. Control program.

Images