Anaerobic Digestion

The anaerobic digestion facility produces biogas from organic waste and this is in turn used to generate electricity and heat, together with clean, nutrient-rich soil amendment products.

The plant processes a combination of feedstocks of a biological nature. The Waste Facility permit for the plant allows for a range of products to be accepted, these are suitable in the production of biogas for the generation of electricity.

The process involves the acceptance of wastes into the plant either solid or liquid which is fed to the primary digester. All feeding is carried out through a computer controlled feeding system. The solids are accepted either into the reception building or directly into the solid feed pit. The pit is covered with a hydraulic lid and is kept closed unless accepting waste direct from tipping trailers.

The liquid feed is accepted into a liquid reception tank or in the case of fats, oils and greases to a heated storage tank.

As part of the process the plant has an on-site pasteuriser which will treat the waste to Animal by product standards killing any contaminants by heating it to over 70 degrees for one hour. The resultant product is dewatered through a centrifuge and further dried using our on-site dryer after which it is blended to provide high quality fertiliser for further use. The fertiliser is rich in nutrients which will assist in crop development as well as returning much needed organic matter to the soil.