Patent ID: 7273554
Filing Date: 2007-09-25
Classification: B01D,C12H

Abstract:
1. A crossflow-filtration method for beverages, in particular beer, which are fed as the feed liquid at filtration intervals to a filter module with at least one membrane, which is cleaned with a cleaning solution and flushed with water from the filtrate side at cleaning intervals lying between the filtration intervals, characterized in that the following steps are carried out: a) introduction of the feed liquid ( b) reduction of the entry pressure at the first connection ( c) repetition of steps a) and b) until the filtrate flow goes below the lower predetermined limit value, d) emptying of the filter module ( e) backflushing of the filter module ( f) leaving the filter module ( g) flushing of the filter module ( h) filling of the filter module ( i) forcing out the degassed water from the filter module ( j) continuation with steps a) to i).