The digestion of organic waste and residues has increased in importance during the last ten years in Germany. New plants have been built mainly for the treatment of agriculture residues (e.g. liquid manure) and municipal solid waste (primarily separately collected organic waste). The potential of biogas generation with 8,7 bill. m/a, which is provided by the accumulating amount of organic waste...

With the increasing demand for renewable energy and sustainable waste treatment, biogas production is expanding. Approximately four billion litres of bio-ethanol are produced annually for vehicle fuel in Europe, resulting in the production of large amounts of stillage residues. This stillage is energy-rich and can be used for biogas production, but is a challenging substrate due to its high lev...

Biogas production from co-digestion of local brewery waste (BW) and cow dung (CD) was study for value added to this solid waste. The objective of this research was to fine the optimum condition for maximum biogas production and also examined the effectiveness of the biogas residue (liquor from anaerobic digestion process) as a nitrogen source for the production of okro. The experiments were per...

It is generally accepted as a fact in the biogas technology that protein-rich biomass substrates should be avoided due to inevitable process inhibition. Substrate compositions with a low C/N ratio are considered difficult to handle and may lead to process failure, though protein-rich industrial waste products have outstanding biogas generation potential. This common belief has been challenged b...

Vietnam is a developing country with an ever increasing power demand. The development of power sources are limited mainly to large central power plants using hydropower and traditional fossil fuels. Agriculture still plays a vital role in production activities generating high quantity of residues (biogas, straw, rice husk, etc..). These biomass residues could be a potential source for energy su...