TITLE: Mikrobielle Abwasserreinigung im Slurry-Reaktor mit Braunkohleprodukten und keramischen Granulaten als Biomassetraeger.  Abschlussbericht. (Biological treatment in the slurry-reactor with brown-coal products and ceramic materials as biomass carrier. Final report)

AUTHOR: W. Koerner.

INST.  AUTHOR: Technische Univ. Bergakademie Freiberg (Germany).  Fachbereich Verfahrenstechnik und Silikattechnik.

LANGUAGE: German

PUB.  TYPE: Technical Report

PUB.  COUNTRY: Germany

SOURCE: Department of Energy [DEE],  20 Oct 92,  12p.

NTIS ORDER NO.: DE94774230INW

ABSTRACT:

In order to raise the decay rate in metabolism processes with low turnover rate, such as microbiological degradations, it is advantageously as well to decouple the residence times of the cells and the culture medium as to increase the cell density with methods of process engineering. For that purpose it is possible to use the three-phase-fluidization where microorganisms are adapted at small, fluidisable and porous solid substances. The gas phase causes a nearly complete radial distribution and a high backmixing. The produced biomass on the carriers with its biocatalytic effect remains in the reactor and the catabolized culture solution drains off. First experiments with a variety of materials have indicated, that Siliziumnitrite can be suitable for such carriers. It is especially wear-resistant, pH-neutral and  inexpensive. (orig.). 1 tab., 1 fig. (ERA citation 19:021854)

REPORT  NUMBER: INIS-MF-14223