Biogas Installations

Some technical elements of biogas plants

Hygenisation pit	Special pretreatments are applied to canteen waste or slaughter-house waste to eliminate the disease-causing agents
The endless screws in the hoppers are used in order to transport waste in the tanks. Several techniques of solid waste introduction are possible: Piston Mix with liquid waste then pumping		Endless screw
Completely Stirred Tank Reactor biogas technology
Biogas pipes	Digester	Digester diagram
Agitator	Blade agitator	The digester is a concrete or steel tank which can be buried or not. It is hermetically closed, heated at 40 degrees so that anaerobic digestion take place in optimal conditions. The most commonly used technique is the one called “completely stirred tank reactor” The mixture inside the tank is maintained homogeneous thanks to a mixing which has several functions: avoiding formation of the crust on the surface, avoiding sedimentation of the matters, facilitating degasification. In addition to the digester there can be a maturation tank which makes it possible to to stabilize the anaerobic digestion process and to recover approximately 10% additional biogas
Completely Stirred Installations 2
Agitators with blades Dry matter percentage : 15%