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Cost-efficent operation of a denitrifying activated sludge process
Dalarna University, School of Technology and Business Studies, Electrical Engineering.
2007 (English)In: Water Research, ISSN 0043-1354, E-ISSN 1879-2448, Vol. 41, no 11, p. 2325-2332Article in journal (Refereed) Published
Abstract [en]

In this paper, the choice of optimal set-points and cost minimizing control strategies for the denitrification process in an activated sludge process are treated. In order to compare different criterion functions, simulations utilizing the COST/IWA simulation benchmark are considered. By means of operational maps the results are visualized. It is found that it is easy to distinguish set-point areas where the process can be said to be efficiently controlled in an economic sense. The characteristics of these set-point areas depend on the chosen effluent nitrate set-point as well as the distribution of the different operating costs. It is also discussed how efficient control strategies may be accomplished.

Place, publisher, year, edition, pages
Elsevier , 2007. Vol. 41, no 11, p. 2325-2332
Keywords [en]
Activated sludge process; Cost-efficient operation; Denitrification; Operational maps; Fee functions
Identifiers
URN: urn:nbn:se:du-2557OAI: oai:dalea.du.se:2557DiVA, id: diva2:519766
Available from: 2007-03-23 Created: 2007-03-23 Last updated: 2017-12-07Bibliographically approved

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