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Methane Potential
Characteristics
Organic waste is characterized above all by its composition of dry matter (MD) and volatile matter (MV)
Methane potential
The Methane Potential is the volume of methane
biogas produced
during anaerobic degradation in the presence of bacteria of a sample
initially introduced, expressed under Normal conditions of
Temperature and Pressure (CNTP: 0°C, 1013 hPa).
Bio-degradation
The bio-degradation is estimated starting from the production of
methane biogas obtained during the tests compared to the theoretical
maximum production.
The protocol is based to the measure of the
production of methane by a closed engine in which are put in contact a
known quantity of the sample to test and a known quantity of anaerobic
micro-organisms, the latter being placed under favourable conditions
for the degradation of the sample.
You will find in the table bellow for some waste its potential of methane production (in m3 of methane per ton of raw material):
| Matter | Methane potential (m3 CH4/Ton of raw material) |
| Liquid bovine manure | 20 |
| Contents of paunch | 30 |
| Bovine manure | 40 |
| Potatoe pulps | 50 |
| Brewery waste | 75 |
| Shearing of lawn | 125 |
| Corn residues | 150 |
| Lubricate from slaughter-house | 180 |
| Molasses | 230 |
| Used grease | 250 |
| Cereal waste | 300 |
Histogram of waste bio-degradation