CROSSFLOW-FILTRATION METHOD FOR BEVERAGES

The invention relates to a crossflow-filtration method for beverages, in particular beer, which comprises the following steps: a) the feed liquid is introduced into a filter module by means of a tangential flow through a filter membrane ( 6 ) in a first direction, whereby the filtrate flow on the fi...

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Bibliographic Details
Main Authors DIETER ARMGART, MICHAEL RODENBERG, MATTHIAS GRABOSCH, BERNHARD DIEL
Format Patent
LanguageEnglish
Published 02.02.2004
Edition7
Subjects
AGEING
BEER
BIOCHEMISTRY
CHEMISTRY
CLARIFICATION
ENZYMOLOGY
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
PASTEURISATION
PRESERVATION
PURIFICATION
SPIRITS
STERILISATION
VINEGAR
WINE
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Summary:The invention relates to a crossflow-filtration method for beverages, in particular beer, which comprises the following steps: a) the feed liquid is introduced into a filter module by means of a tangential flow through a filter membrane ( 6 ) in a first direction, whereby the filtrate flow on the filtrate side ( 19 ) of the filter module is maintained within predetermined threshold values; b) the entry pressure is reduced and the filter is backflushed by surges of filtrate initiated by a reversal of the flow direction transversally to the membrane; c) the feed liquid is optionally introduced in an inverse flow direction to that of step a) and the concentrate is evacuated on the non-filtrate ( 7 ) side of the module; d) the entry pressure is reduced and the filter is backflushed by surges of filtrate initiated by a reversal of the flow direction transversally to the membrane; e) steps a) to d) are repeated until the filtrate flow lies below the lower predetermined threshold value; f) to k) the filter is emptied by applying pressure, backflushed, rinsed and l) steps a) to k) are resumed.
Bibliography:Application Number: AU20030246435