USE OF COMPUTERS FOR PROCESS DESIGN ANALYSIS AND CONTROL - SEQUENCINGBATCH REACTOR APPLICATION

Computers have become a vital part of every modem wastewater treatment plant. They can be used for design, analysis, and control of the trea tment process. Mathematical modelling and simulation of various proces s configurations, load conditions, and operational strategies lead to better understanding and improved design and operation. Computer assis ted analysis of process performance and automatic control of plant uni ts aid reduce expenses related to energy, chemicals, and man power. St ringent disposal constraints imposed in most modern countries require application of sophisticated computerized control systems to ensure hi gh quality effluents. The sequencing batch reactor system is similar t o the conventional activated sludge process in its ability to achieve biological removal of organic carbon and nutrients by a single sludge. However, due to the non-steady-state nature of the process, and to th e large substrate and nutrient gradients occuring during the operating cycle, some modifications in the traditional activated sludge waste c haracterization and process modelling should be considered. Copyright (C) 1996 IAWQ.