Brief paper: Fuzzy control of the activated sludge wastewater treatment process

  • Authors:

  • R. M. Tong;M. B. Beck;A. Latten

  • Affiliations:

  • Department of Electrical Engineering and Computer Science and the Electronics Research Laboratory, University of California, Berkeley, California 94720, U.S.A.;International Institute for Applied Systems Analysis, Schloss Laxenburg, 2361 Laxenburg, Austria;Manager, Whitlingham Treatment Works, Anglian Water Authority, Trowse, Norwich, U.K.

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 1980

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Abstract

The activated sludge process is a commonly used method for treating sewage and waste waters. It is characterised by a lack of relevant instrumentation, control goals that are not always clearly stated, the use of qualitative information in decision making and poorly understood basic biological behaviour mechanisms. In this brief paper we examine the behaviour of an experimental fuzzy control algorithm constructed to reflect actual operational practice. We conclude that this algorithm does rather well and that a fuzzy controller would be a useful and practical way of regulating the activated sludge process.