Cofermentation biogas plants not only digest manure but also take other organic substances -so-called coferments -as well. Typical coferments are fats, market wastes, spice residues, residues from food industry and many similar substances.
The operator of the cofermentation biogas plant increases his earnings in two ways: first, just by taking the coferments from the person who wants to dispose them and second, through higher biogas production.
Cofermentation biogas plants are generally (much) larger then farm-scale biogas plants. Sometimes they still conform to the agricultural standards but most often to the industrial ones.
Large-scale cofermentation biogas plants have emergency flares in case the engines are not in operation and biogas has to be burnt. The gas system may include a blower, condensate trap, desulfurisation and so on. Everything is controlled by a gas system control unit. Digested manure is pumped into a standard manure storage tank. |
