Kvasny Prum. 1993; 39(11): 333-337 | DOI: 10.18832/kp1993022

Automated sterile filtration with regenerable filter materials.Peer-reviewed article

D. OECHSLE, L. GOTTKEHASKAMP, W. BAUR, R. W. SCHLENKER

The disposal of solid filtration residues such as spent kieselguhr and filter sheets is getting more and more difficult and expensive. Schenk Filterbau has developed a procedure for the fine or sterile filtration by use of regenerable filter materials in the PRIMUS-filter. This new filtration process can be fully automated and replaces the conventional methods for the fine or sterile filtration. The regeneration of the filter materials is done by flushing with hot water, caustic and acid. The process requires a filter material, which is fully regenerable, chemical resistant and free of kieselguhr. The filtration effect should be adjustable to a coarser and a finer degree. After filtration and regeneration the total filter material is recovered. Only the losses have to be replaced. The important advantage of this process is the elimination of spent filtration residues, which usually have to be disposed. For the performance of this new technique a horizontal pressure leaf filter with ideal flow mechanics (type PRIMUS) is used together with a suitable equipped holding and dosing tank. A CIP-system to supply hot and cold water, acid- und caustic solutions is required for the regeneration and filter rinsing.(In Czech, English summary only)

Keywords: beer, sterile filtration,economy, regeneration

Published: November 1, 1993