FUZZY MODEL AND DECISION OF COD CONTROL FOR AN ACTIVATED-SLUDGE PROCESS

An approach for fuzzy modeling and decision is presented based upon fu zzy logic inference. Modeling and decision making for process control in a real-world activated sludge process were studied. The modeling wo rk for the process is based upon some historical on-line measurable an d off-line sampling data from the process, and process operational exp erience. Some calculated data for the modeling resulted from estimatio n of the developed model. The method of estimation is also briefly int roduced in this article. Performance of the fuzzy strategies or fuzzy decisions has been tested by comparing some results of fuzzy decision against results of simulation on dynamic mathematical models for the s ame process. The test results are satisfactory. (C) 1998 Elsevier Scie nce B.V.