Application of a VSM-based process control to a bench-scale anaerobic digestor

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DOIResolve DOI: http://doi.org/10.1021/ie030799y
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TypeArticle
Journal titleIndustrial & Engineering Chemistry Research
Volume44
Issue1
Pages1061113; # of pages: 8
AbstractA variable structure model (VSM) was used for online control of a bench-scale anaerobic digestor. The VSM consisted of three submodels, which described the methanogenic, organic overload, and acidogenic states of the digestion process. Submodel activation was handled by a knowledge-based system, which used online measurements of the digestor pH and biogas composition to identify the process state and thereby select an appropriate leading submodel. Separate controllers were designed for each submodel, but only the controller corresponding to the leading submodel was applied at each instant. Experimental validation of the VSM-based feedback process control in a 5-L anaerobic digestor showed a stable process performance under various operating conditions.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Biotechnology Research Institute
Peer reviewedNo
NPARC number12333600
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Record identifier0946564b-6c52-4f7f-b390-6357f16e66bd
Record created2009-09-10
Record modified2016-05-09
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