Translation of "Stoffumsatz" in English

The latter is important for the mass conversion in upstream reactors.

We could try propylthiouracil. Slow down his metabolic rate.

The material turnover to ozonide was in this case complete (>99%).

In this stage, the microbial conversion comes completely to a standstill if the oxygen supply is discontinued.

In order to ensure the sealing function and the increased bearing capacity, no material or chemical processes should occur upon setting.

I am interested in the compound turnover in the environment catalysed by microorganisms.

However, these zooxanthellae tend to have a lower metabolic rate which means they also produce less sugar.

U--unit of enzyme activity (under defined reaction conditions, 1 U produces a substance conversion of 1 ?mol/min)

Flexible, porous material, serving as the filtering, oil-depositing and/or carrier material, is located in the reactor 1 and becomes loaded with substances such as, in particular, deposited solids, oil droplets and/or bacteria present in the liquid, in most instances water, fed from above, which substances are to be removed from such liquid. (Typically, during operation air is sparged into the reactor from the bottom for, e.g., enhancing biological mass transfer and/or improving mixing in the reactor 1.)

Additionally, owing to the low specific gravity of the macroporous substances, it is made possible that these substances, if they consist of discrete particles, can be stirred up even at minor flow velocities of the wastewater whereby mass transfer and conversion rates are increased.

It is thus important to ensure that 1 mole of oxygen is present at the cathode per conversion.

By setting to optimum conditions of the environment it is possible to increase the rate of conversion of the hydrolytic microorganism and consequently to accelerate the rate limiting degradation step.

However, particularly in the case of small particle sizes and small differences in density, the Archimedes numbers are so small that the transfer of material is only negligibly enhanced by a fluidized bed arrangement. In this case, the wetted solid particles remain surrounded by a boundary layer of the liquid and no relative velocity sufficient for a good transfer of material may be achieved within this boundary layer.

This leads to the advantage that good material exchange rates may be obtained in the field of biotechnology where, for example microbiological cultures grown on solid particles (bacteria, cells, enzymes, etc.) effect the transfer of material as in the treatment of waste waters by means of the so-called fermentation process.

It is also not possible to influence the microbial conversion of substances by means of a defined oxygen feed.

The deficiencies of the current process controls are evident in the problem of establishing reproducible and specific conditions in the medium, for example in the formation of excessively high temperature plateaus in certain treatment phases, in an undesired dry stabilization of the rotting material and in an unsatisfactory conversion.

In the course of the process, the conversion is optimized via regulated temperature profiles so that certain classes of substances are preferentially converted, synthesized and degraded.

Preferably, at least one or more, or particularly preferably all, reactors are assigned means which are designed for reactor-independent and individual controllability of the process parameters determining the microbial conversion.

It is characteristic of the composting process that the conversion at the beginning can take place both under aerobic and under anaerobic conditions.

It is only the diversity of the flow variants which permits the exact and sensitive tailoring of the process parameters to the particular desired microbial conversion, i.e. the adaptation of the process parameters for the particular desired microflora.

Although these larger particles have the desired velocity relative to the surrounding liquid, their smaller surface area per unit volume on the other hand limits the conversion.

Thus the treatment agent reaches the precise point at which the current density on the material surface is highest, so that at this point, with the greatest conversion of matter, an effective renewal of the consumed treatment agent takes place.

Composting, on the other hand, leads to a conversion which necessitates strictly aerobic conditions, as shown in FIG. 1.

During composting, permanent humus is formed with a reduction in volume (about 50% rotting loss), said humus being based on the following conversion.

This finding is independent of the reaction mechanism prevailing in this range and is inter alia characterized in that the current density is completely or almost completely independent of the movement state of the electrolyte with respect to the electrode system and there is a strong temperature influence on the substance conversion at the test electrode (approximately +15% per 1° C. up to 20° C.).

Furthermore, a gradual movement of the carrier particles, for improving mass transfer and conversion, is not readily possible due to the character of the material, and would in any event lead to extensive erosion of the carrier material proper.