ASExpert: an integrated knowledge-basedsystem for activated sludge plants

摘要

The activated sludge process is commonly used for secondary wastewater treatment worldwide. This process is capable of achieving high quality effluent. However it has the reputation of being difficult to operate because of its poorly understood biological behaviour, variability of input flows and the need to incorporate qualitative data. To augment this incomplete knowledge with experience, knowledge-based systems were introduced in the 1980s however they didn't receive much popularity. This paper presents the Activated Sludge Expert system(ASExpert), which is a rule-based expert system plus a complete database tool proposed for use in activated sludge plants.