Fuzzy logic control of dynamic anaerobic/aerobic activated sludge system

An anaerobic/aerobic activated sludge system tinder dynamic loading is difficult to automatically control due to its ill-defined, non-linear, and complex behavior. This study demonstrates the merits of a real-time fuzzy logic controller for such control purposes by comparing it with a conventional proportional (F/M)(an) controller. Using the conventional system alongside our proposed system, continuous-flow pilot plant experiments with automatic monitoring and control facilities were carried out. Five effluent parameters ( dissolved GOD, dissolved P, total SS, total COD,and total P) were utilized to evaluate their dynamic system performance. Experimental results indicate that, comparied to conventional (F/M)an control, fuzzy logic control significantly improve the affluent concentration.