Abstract
The anaerobic digestion offers an advantageous alternative to landfilling, incineration and composting since it is considered as
the most appropriate treatment solution. Indeed, the biogas naturally produced by the fermentation of organic waste into
anaerobic digesters, contains between 40 and 60% of methane, which gives it fuel character and its valorisation allows energy
conservation while protecting the environment by reducing the greenhouse gases emission. This process corresponds perfectly to
the policy of sustainable development. The objective of this paper is to popularize the technique of organic waste
biomethanisation or anaerobic digestion in order to produce renewable energy and cleaner environment through the exploitation
of research results.
In this work, we used as support the experimental results obtained in the laboratory. The mesophilic anaerobic digestion of cowdung,
into an experimental digester of 800 liters capacity, has produced 26.478 m3
of biogas for 77 days with an average optimal
composition of 61% in methane and energy equivalent to 592.8 MJ (164.5 kWh). These results are hopeful for the use of cattle
wastes mass available in Algeria, or even household wastes.