D, E, F

The decomposition of org. compounds consisting of many atoms into simpler compounds or molecules by biotic and abiotic processes. In biotic decomposition, decomposition takes place through biological processes (e.g. enzymes or microorganisms); in abiotic decomposition, decomposition takes place through chemical (e.g. slow oxidation, combustion, transformation) or physical (e.g. UV radiation) processes.

The property of a substance to be able to be transformed by biochemical, chemical or physical reactions. The end products of the reactions are either other compounds (metabolites) or, in the case of complete mineralisation, CO2 , H2O, NH3.

The degree of biological or chemical degradation of organic compounds.

Process step (biological or chemical) for precipitating hydrogen sulphide from biogas.

Container in which the microbiological degradation of the substrate takes place with simultaneous biogas formation

Container or earth basin in which liquid manure, slurry as well as digestate is stored before further use.

Anhydrous fraction of a mixture of substances after drying at 105 °C.

Emitting e.g. smoke, gases, dust, waste water or odours into the environment. However, noises, vibrations, light and heat can also be emitted.

FOS/TAC means the titrimetric determination of Volatile Organic Acids (FOS) in relation to the Carbonate Buffer Capacity (Total Inorganic Carbon, TAC).

Residue of biogas production, output of the digester.

Period of full utilisation of a plant when the total hours of use and the average utilisation rate within one year are converted to a utilisation rate of 100%.