| Title |
A Study on Energy Saving Method in Wastewater Process Control System |
| DOI |
https://doi.org/10.5370/KIEE.2023.72.11.1485 |
| Keywords |
Energy Saving; Neural Network; DO Control; Wastewater Treatment System; Activated Sludge Process |
| Abstract |
In this paper, an energy saving method for wastewater treatment biological process is proposed. In the wastewater treatment biological process, the effect on the output according to the change in input takes 4 to 6 hours due to the characteristics of the biological reaction. However, existing studies did not take this into consideration and implemented a prediction system for input versus output using data from the same time. In order to solve this problem, this paper 1) generates input/output data considering the biological reaction time of output by input, 2) builds an artificial neural network prediction model using this data, and 3) determines the minimum water quality from this model to achieve the target water quality. The blower was controlled by calculating the blowing volume. We proposed a mathematical method that considers the biological response time of output by input, and in this case, a method of implementing an artificial neural network model and a method of controlling actual airflow volume were proposed. As a result, it was possible to reduce the power consumption that occurred when trying to achieve the target water quality by unconditionally increasing the existing DO. |