In recent years intelligent control of large-scale industrial processe
s has brought about a revolution in the field of advanced control. Kno
wledge-based techniques which use linguistic rules elicited from human
experts are at the core of this class of systems, of which fuzzy and
neural controllers are two examples that have been applied with succes
s. This paper presents an intelligent control system which can be embe
dded in a commercial programmable logic controller for the control of
wastewater treatment plants. (C) 1998 Elsevier Science Limited. All ri
ghts reserved.