Abstract
AbstractMore advanced instrumentation, control and automation are necessary to meet the tightening standards for effluent quality from wastewater treatment plants (WWTPs) treating pulp and paper mill wastewater. Although the methods and equipment necessary for implementing process control at WWTPs have been developed, there is not much prior experience of their application in industrial WWTPs making the plant operators hesitant to make the necessary investments. Modeling and simulation is an inexpensive method to evaluate the benefits of improved process control. This paper presents the development of a simulator for evaluating the potential for process control in an activated sludge process (ASP) treating pulp mill wastewater. A simple control strategy developed to improve the operation of the pulp mill ASP and to decrease operating costs is evaluated with the simulator. The benefits of process control are evaluated based on effluent quality and costs of operation.
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