The Holmberg/Olsson method for simultaneous adaptive dissolved oxygen control and oxygen utilisation rate estimation in the diffused air activated sludge process is evaluated (Holmberg and Olsson. 1985; Holmberg, 1986). Small offsets in the parameter estimates occur because the Q/V term is not included in the estimator model. Significant offsets may occur as a result of assumptions regarding the KLa/air flow rate relationship. Extensions are proposed to overcome the offset problems.
Dissolved Oxygen Control and Oxygen Utilization Rate Estimation: Extension of the Holmberg/Olsson Method
S. M. Bocken, M. Braae, P. L. Dold; Dissolved Oxygen Control and Oxygen Utilization Rate Estimation: Extension of the Holmberg/Olsson Method. Water Sci Technol 1 October 1989; 21 (10-11): 1197–1208. doi: https://doi.org/10.2166/wst.1989.0319
Download citation file: