Organic Waste Systems

The introduction of anaerobic digestion into the treatment of municipal solid waste (MSW) and source separated organics (biowaste) is one of the most successful and innovative technology developments observed during the last two decades in the waste management field. Household waste organics contain energy, and Organic Waste Systems is determined to get it out!

Dranco

The DRANCO digestion technology was developed by studying and optimising the spontaneous ‘dry’ digestion that takes place in a landfill. When oxygen is depleted in the landfill,  anaerobic bacteria gradually take over the role of the aerobic bacteria. Part of the organic fraction of the disposed waste is degraded by these anaerobic bacteria and landfill gas, rich in methane,  escapes from the landfill. Unfortunately anaerobic decomposition in a landfill is uncontrolled and very slow (20 to 50 years). The DRANCO technology was developed by optimising the digestion parameters of the “dry” and “static” anaerobic digestion that takes place in a landfill. In depth research in the early 80’s resulted in the innovative DRANCO digestion concept with a digestion time of two to three weeks. Continuous research was done at OWS during the last decades to improve the process and to keep the DRANCO-technology at the top in its field.

Organic Feedstock