Page 5 - 4_TOC special applications

Sum parameter – Total Organic Carbon

TOC- determination in liquid manure and

fermentation fluids
SCA-130-402 – suspension method

Biogas is one of the energy sources of the
future and can be used in the generation and
supply of energy, or it can be fed into the
natural gas networks in the form of
biomethane. The generation of energy from
renewable or regenerative energy sources,
which include water, wind, solar and other
types of biomass, replaces the use of fossil
fuels.

For the production of biogas from, for
instance, various liquid manures or maize
silages, pretreatment methods for liquid
manure and the optimization of the
fermentation process and biogas yield are
investigated.

Fig. Experimental setup to generate bio gas in the
laboratory

■ Efficiency
To evaluate the efficiency of the reactor and
the method, biogas was analyzed in different
ways. An important parameter is the gas
chromatographic determination of the
methane content. In order to be able to

compare the biogas yield of the various
Reactors with various volumes are used for substrates, the biogas volume or methane
production testing. The prepared liquid volume was expressed in terms of the
manure or mixtures of other substrates are organic dry matter present in the substrate
used for fermentation. The generated biogas (Nl/kg ODM). This requires the accurate
is diverted via pipelines, the resulting volume determination of the initial concentration of
is pneumatically determined and the gas the organic substance in the liquid manure.
composition is analyzed.