Study of start-up of a continuous digester for biogas production

摘要

A continuous digester type was designed at the laboratory scale with an aim to studying and improving anaerobic digestion of organic wastes. The results obtained can be extrapolated at large scale pilot plant. To study the digester start-up we have chosen as a substrate the sludge issued from the wastewater treatment plant located in Adrar city (south west of Algeria). Different parameters have been considered such as pH, VFA, COD, and volume of biogas generated during the digestion process. In addition to the production of green and renewable energy (biogas). The digester designed for laboratory scale, also allowed us to treat the initial pollution in the sludge from the treatment plant.