|
The present invention allows biomass and/or biomass-produced components
to be obtained at high yields by executing numeric simulation of
flow to reasonably identify the running conditions suitable for
a fermenter. The control device according to the present invention
comprises an input means for entering measured data from a measurement
means, which measures nutrient components, the concentrations of
oxygen, carbon dioxide, and biomass in a culture medium; a computation
means for calculating nutrient components uptake rate, oxygen uptake
rate and carbon dioxide exhaust rate per unit amount of biomass
from the measured data entered at the aforementioned input means,
as well as volumetric mass transfer coefficient kLa from turbulent
energy k and a turbulent energy dissipation rate e, both of which
are calculated by a transport equation, as well as a diffusion coefficient
D, followed by calculating the concentrations of the nutrient components,
dissolved oxygen, and dissolved carbon dioxide in any area in the
fermenter using an algorithm to numerically integrate a differential
equation describing variations in medium components over time from
the calculated nutrient components uptake rate, the calculated oxygen
uptake rate, the calculated carbon dioxide exhaust rate, and the
calculated volumetric mass transfer coefficient kLa; and a display
means for displaying concentration distributions of the nutrient
components, dissolved oxygen, and dissolved carbon dioxide in the
fermenter based on the concentrations of the nutrient components,
dissolved oxygen, and carbon dioxide in any area of the fermenter
calculated at aforementioned computation means.
The invention relates to a device for anaerobically fermenting
substances comprising a preacidifier inside of which the substances
are subjected to a preacidification, a fermenter inside of which
the preacidified substances ferment, and transfer means for transferring
the substances out of the preacidifier and into the fermenter. The
device is characterized in that the transfer means are designed
for selectively transferring sufficiently preacidified substances.
The invention also relates to a method for anaerobically fermenting
substances involving a preacidification during which the substances
are preacidified by means of a preacidifier, a fermentation during
which the preacidified substances ferment inside a fermenter, and
a transferring during which substances are transferred out from
the preacidifier and into the fermenter, whereby the sufficiently
preacidified substances are selectively transferred.
The invention relates to a solid-state fermenter for the cultivation
of micro-organisms on solid substrates, in particular for large
volumes. The field of application of the invention is the microbiological
industry. The solid-state fermenter according to the invention comprises
one or more air-proof and waterproof fermenter levels arranged on
top of one another, connected with the wall of the container in
such a way that neither air nor water can flow past laterally, with
a culture substrate to be found on the fermenter levels for the
micro-organisms to be cultivated, and wherein the cooling of the
fermenter material is done by cooling lances rising vertically from
the fermenter base and leading through the fermenter levels (4)
and a seal (6) is installed between the fermenter levels (4), which
is pressed against the inner wall of the fermenter by the mass of
the level above it (4).
|