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Flocculant Screening Method at Lab Scale for Application in Disc Stack Centrifuges with Hermetic Design

Chemicals produced using biotechnological methods like fermentation processes are obtained as complex diluted aqueous mixture, which still contains the production organism. Centrifugation is a commonly used technology for biomass separation. By flocculation, the settling velocity of microorganisms c...

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Detalles Bibliográficos
Autores principales: Merkel, Tobias, Blättler, Oliver, Königsson, Staffan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472594/
https://www.ncbi.nlm.nih.gov/pubmed/31007398
http://dx.doi.org/10.1002/ceat.201800202
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author Merkel, Tobias
Blättler, Oliver
Königsson, Staffan
author_facet Merkel, Tobias
Blättler, Oliver
Königsson, Staffan
author_sort Merkel, Tobias
collection PubMed
description Chemicals produced using biotechnological methods like fermentation processes are obtained as complex diluted aqueous mixture, which still contains the production organism. Centrifugation is a commonly used technology for biomass separation. By flocculation, the settling velocity of microorganisms can be increased. Here, a laboratory flocculant screening method tailored for the separation of flocculated biomass in a fully hermetic disc stack centrifuge is described. The specific requirements of this process, namely, floc formation, floc stability, sliding behavior in the disc stack, and flowability of the sludge, were transferred to lab scale and validated in pilot tests. The qualitative results of the laboratory screening were in agreement with the processes at industrial scale.
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spelling pubmed-64725942019-04-19 Flocculant Screening Method at Lab Scale for Application in Disc Stack Centrifuges with Hermetic Design Merkel, Tobias Blättler, Oliver Königsson, Staffan Chem Eng Technol Research Articles Chemicals produced using biotechnological methods like fermentation processes are obtained as complex diluted aqueous mixture, which still contains the production organism. Centrifugation is a commonly used technology for biomass separation. By flocculation, the settling velocity of microorganisms can be increased. Here, a laboratory flocculant screening method tailored for the separation of flocculated biomass in a fully hermetic disc stack centrifuge is described. The specific requirements of this process, namely, floc formation, floc stability, sliding behavior in the disc stack, and flowability of the sludge, were transferred to lab scale and validated in pilot tests. The qualitative results of the laboratory screening were in agreement with the processes at industrial scale. John Wiley and Sons Inc. 2018-10-30 2018-12 /pmc/articles/PMC6472594/ /pubmed/31007398 http://dx.doi.org/10.1002/ceat.201800202 Text en © 2018 The Authors. Chemical Engineering & Technology is published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Research Articles
Merkel, Tobias
Blättler, Oliver
Königsson, Staffan
Flocculant Screening Method at Lab Scale for Application in Disc Stack Centrifuges with Hermetic Design
title Flocculant Screening Method at Lab Scale for Application in Disc Stack Centrifuges with Hermetic Design
title_full Flocculant Screening Method at Lab Scale for Application in Disc Stack Centrifuges with Hermetic Design
title_fullStr Flocculant Screening Method at Lab Scale for Application in Disc Stack Centrifuges with Hermetic Design
title_full_unstemmed Flocculant Screening Method at Lab Scale for Application in Disc Stack Centrifuges with Hermetic Design
title_short Flocculant Screening Method at Lab Scale for Application in Disc Stack Centrifuges with Hermetic Design
title_sort flocculant screening method at lab scale for application in disc stack centrifuges with hermetic design
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472594/
https://www.ncbi.nlm.nih.gov/pubmed/31007398
http://dx.doi.org/10.1002/ceat.201800202
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