Abstract: The high purity oxygen activated sludge process requires more advanced controls as compared to the conventional activated sludge process. Feedback controllers have difficulty controlling process disturbances due to process ...

Abstract: Traditional set point control and operation of a pumping station using fixed speed pumps usually amplify both the frequency and magnitude of variations in the influent flow rate. The purpose of the present study is to ...

Abstract: Lack of real-time measurements is a major problem in the operation and control of the high-purity oxygen activated-sludge process. A real-time estimator using dissolved oxygen measurements in each stage and liquid flow ...