Introduction anaerobic digestion and biogas 5 the biogas plant is the hub in the future circular economy. Codigestion refers to the simultaneous anaerobic digestion of multiple organic wastes in one digester. The fertilizer can be applied directly to the garden and ch 4 can be used as a source of energy. Codigestion is used to increase methane production from. By comparison, in germany, most biogas plants are based on farms and aim at power generation. Biogas can be produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste. A biogas plant is an anaerobic digester of organic material for the purposes of treating waste and concurrently generating biogas fuel. Measuring smallscale biogas capacity and production irena. This pdf is available as a free download from this page below.
The biogas digester, once its starter culture of methanogenic ch4 producing bacteria has been. When this occurs, the gas line must be picked up and the water drained back into the digester. For your ease of reference and use we have compiled the contents of our biogas production process steps page on our main website as a pdf. Streams of excess materials, previously regarded as waste, from industrial processes, agriculture and other human activity can be channeled through biogas digesters and converted to useful energy carriers, nutrientrich organic. Portable biogas digesters for domestic use in jordanian.
The gas line is attached to a regular barbed fitting secured with a hose clamp. A small scale biodigester designed and built in the. The three most common and most successful designs for biogas digesters are the fixed dome, the plastic covered ditch and the floating drum. The design of biogas digester may vary accordingly to suit the requirements of the owner. Increasing anaerobic digester performance with codigestion epa. Methane gas can be produced from a biogas digester. Fixeddome digester figure 9 is the most common type of design. A biogas digester is a simple system which produces biogas, via the natural anaerobic decomposition of organic material. The biogas production process steps pdf describes the steps for the most common type of commercial biogas plant. Biogas digesters yield two useful products from animal manure.