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The performance of a scaled down industrial disc stack centrifuge with a reduced feed material requirement

Maybury, JP; Mannweiler, K; Titchener-Hooker, NJ; Hoare, M; Dunnill, P; (1998) The performance of a scaled down industrial disc stack centrifuge with a reduced feed material requirement. BIOPROCESS ENG , 18 (3) 191 - 199.

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Abstract

A method is described for the scale-down of a disc stack centrifuge which reduces the number of separating discs and also the liquid and solid hold-up of the centrifuge bowl. This is to enable a reduced volume of process material to be used for study of clarification. Scale-down is achieved in stages using a series of interlocking inserts to suit particular applications. Maximum scale-down gives a 76% reduction in the separation area and a bowl volume reduction of 70%. Separation performance of the full stack machine and scale-down variants is compared using the grade efficiency concept. Polyvinyl acetate and bakers' yeast homogenate particle suspensions are used for the comparison. The grade efficiency curves produced by the scale-down variants closely follow the curves for the full stack machine. This resulted in supernatants of the same volume size distribution and concentration when using scale-down methodology to mimic the full scale operation.

Type: Article
Title: The performance of a scaled down industrial disc stack centrifuge with a reduced feed material requirement
Keywords: YEAST, CLARIFICATION
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Biochemical Engineering
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Engineering Science Faculty Office
URI: http://discovery.ucl.ac.uk/id/eprint/78632
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