PROCESS FOR CARRYING OUT MICROBIOLOGICAL FERMENTATIONS IN A DEVICE COMPRISING A FIXED SYSTEM OF AN OPEN CELL FOAM AS WELL AS A DEVICE FOR CARRYING OUT SUCH PROCESSES

摘要

A B S T A C T The present invention relates to a process for carrying out microbiological fermentations, wherein a nutrient liquid and, if necessary, gases are passed through a fixed system of open cell polyurethane foam units, which system comprises at least two adjacent foam layers each having a flat main surface and an embossed main surface, wherein in the subsequent layers said embossed surface of a foam layer is positioned against the flat surface of the adjacent foam layer. * * * * *