Cost-efficent operation of a denitrifying activated sludge process

Document identifier: oai:dalea.du.se:2557
Keyword: Activated sludge process; Cost-efficient operation; Denitrification; Operational maps; Fee functions
Publication year: 2007
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Abstract:

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.

Authors

Pär Samuelsson

Högskolan Dalarna; Elektroteknik
Other publications >>

Björn Halvarsson

Other publications >>

Bengt Carlsson

Other publications >>

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        identifier: oai:dalea.du.se:2557
        datestamp: 2021-04-15T13:03:31Z
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                recordCreationDate: 2007-03-23
            identifier: http://urn.kb.se/resolve?urn=urn:nbn:se:du-2557
            titleInfo: 
                @attributes: 
                    lang: eng
                title: Cost-efficent operation of a denitrifying activated sludge process
            abstract: 
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.

            subject: 
                @attributes: 
                    lang: eng
                topic: Activated sludge process; Cost-efficient operation; Denitrification; Operational maps; Fee functions
            language: 
                languageTerm: eng
            genre: 
                publication/journal-article
                ref
            note: 
                Published
                3
            name: 
                    @attributes: 
                        type: personal
                    namePart: 
                        Samuelsson
                        Pär
                    role: 
                        roleTerm: aut
                    affiliation: 
                        Högskolan Dalarna
                        Elektroteknik
                    @attributes: 
                        type: personal
                    namePart: 
                        Halvarsson
                        Björn
                    role: 
                        roleTerm: aut
                    @attributes: 
                        type: personal
                    namePart: 
                        Carlsson
                        Bengt
                    role: 
                        roleTerm: aut
            originInfo: 
                dateIssued: 2007
                publisher: Elsevier
            relatedItem: 
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                    type: host
                titleInfo: 
                    title: Water Research
                identifier: 
                    0043-1354
                    1879-2448
                part: 
                    detail: 
                            @attributes: 
                                type: volume
                            number: 41
                            @attributes: 
                                type: issue
                            number: 11
                    extent: 
                        start: 2325
                        end: 2332
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                form: print
            typeOfResource: text