BIOGAS AND BIOMETHANE POTENTIAL
The determination of the biogas and biomethane potential of organic material and the rate of its decomposition contribute to a higher-quality waste material characterization.

A high-quality indicator of investment justification

The analyses of the biogas potential of organic materials enable the determination of the optimal co-substrate ratio, the dynamics of the anaerobic decomposition process, and the potential process inhibition.

The mentioned parameters and properties should play an important role when deciding on investing in the construction of an anaerobic waste treatment plant. The biogas potential is a quality indicator of the justified application of these technologies in waste treatment and waste-to-energy utilization.

Biogas potential determination methods

There are several experimental methods for determining the biogas potential of organic materials, and they can be divided into two basic groups:: manometric and volumetric methods. Normally, they can last 21, 90, 100, or 270 days. In manometric methods, the volume of biogas is obtained by measuring the pressure in a closed reactor, and in volumetric methods, directly from the reactor with an eudiometer, plastic bags, or a gas meter that can directly measure biogas and methane volume.

In the CROTEH laboratory, the biogas potential is determined according to the volumetric method for determining the GS21 parameter. The analysis lasts 21 days and can be applied to all types of theorganic substrates. The obtained value of the produced biogas is expressed in NL/kg of dry matter.