Cascade control strategy for external carbon dosage in predenitrifying process

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dc.contributor.authorCho, JHko
dc.contributor.authorSung, SWko
dc.contributor.authorLee, IBko
dc.date.accessioned2013-03-04T08:47:58Z-
dc.date.available2013-03-04T08:47:58Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2002-
dc.identifier.citationWATER SCIENCE AND TECHNOLOGY, v.45, no.4-5, pp.53 - 60-
dc.identifier.issn0273-1223-
dc.identifier.urihttp://hdl.handle.net/10203/82222-
dc.description.abstractWe propose a cascade control strategy composed of two Proportional-Integral (PI) controllers to regulate the nitrate concentration in the predenitrifying process by manipulating the external carbon dosage. It controls the nitrate concentrations in the effluent as well as in the final anoxic reactor simultaneously to strictly satisfy the quality of the effluent as well as to remove the effects of disturbances more quickly. The design of two PI controllers in the cascade control loop can be completed with the Ziegler-Nichols (Z-N) tuning rule together with a simple relay feedback identification method. Results from the Benchmark simulation confirm that both good set point tracking and satisfactory disturbance rejection can be guaranteed due to the structural advantages of the proposed cascade control strategy. Also, compared with a previous work, the fluctuation of the nitrate concentration in the effluent has been decreased significantly.-
dc.languageEnglish-
dc.publisherI W A PUBLISHING-
dc.subjectACTIVATED-SLUDGE PROCESS-
dc.titleCascade control strategy for external carbon dosage in predenitrifying process-
dc.typeArticle-
dc.identifier.wosid000174872000008-
dc.identifier.scopusid2-s2.0-0036204221-
dc.type.rimsART-
dc.citation.volume45-
dc.citation.issue4-5-
dc.citation.beginningpage53-
dc.citation.endingpage60-
dc.citation.publicationnameWATER SCIENCE AND TECHNOLOGY-
dc.contributor.localauthorSung, SW-
dc.contributor.nonIdAuthorCho, JH-
dc.contributor.nonIdAuthorLee, IB-
dc.type.journalArticleArticle; Proceedings Paper-
dc.subject.keywordAuthorbenchmark-
dc.subject.keywordAuthorcascade control-
dc.subject.keywordAuthorexternal carbon source-
dc.subject.keywordAuthornitrate-
dc.subject.keywordAuthorpredenitrifying process-
dc.subject.keywordAuthorPI controller-
dc.subject.keywordPlusACTIVATED-SLUDGE PROCESS-
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