A new digester design template has been developed where the digester uses a patented flat roof design and integrates three solutions that are designed to increase efficiency, reduce risk and reduce the operation cost. The flat roof design provides a reduction in CAPEX costs while using high quality materials, ensuring a long operational lifetime. The three solutions – the GasTop, recirculation mixing and grit removal, and the Gas Lock all take advantage of the flat roof design while decreasing maintenance and down time for the digesters. The flat roof design template allows the operator to concentrate on the benefits of anaerobic digestion and not dealing with problems traditionally associated with it.
Data from plant operating on different climate conditions will be presented. And the impact on the further treatment of biogas will be evaluated.