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MBAA TQ vol. 40, no. 3, 2003, pp. 189-192  |  VIEW ARTICLE
Membrane Beer Filtration—An Alternative Way of Beer Filtration

Rik Schuurman, Lute Broens, and André Mepschen. NORIT Process Technology B.V., P.O. Box 741, 7500 AS Enschede, The Netherlands. Based on a paper presented at the Master Brewers Association of the Americas Convention in Austin, TX, October 2002.

Abstract
NORIT Process Technology and Heineken Technical Services, in a joint research project, have succeeded in progressing cross-flow microfiltration to the point in which it is becoming a technical and economic alternative to kieselguhr (diatomaceous earth) filtration in breweries. The team has solved the persistent problems of high membrane-fouling rates, short run times, and inadequate cleaning procedures. The key to this progression has been the development of a new cleaning strategy as well as the excellent properties of the cross-flow membranes themselves, which are discussed in this paper.
Keywords: beer filtration, cross-flow filtration, diatomaceous earth, kieselguhr, membrane filtration

 

Síntesis
En un proyecto conjunto de NORIT Process Technology y Heineken Technical Services, se ha logrado mejorar la microfiltración en flujo transversal (“cross-flow”) a tal punto que se está convirtiendo en una alternativa técnica y económica a la filtración de cerveza con tierra diatomácea. Estos equipos han resuelto los problemas más persistentes: alta frecuencia de “embarramiento” de las membranas, corridas cortas y procedimientos de limpieza inadecuados. Este avance se debe a las excelentes propiedades de las nuevas membranas de flujo transversal y al desarrollo de una nueva estrategia de limpieza.
Palabras claves: filtración de cerveza, filtración de flujo transversal, tierra diatomácea, kieselguhr, filtración por membranas