Biogas

The anaerobic digester produces biogas during anaerobic conversion of the volatile solids in the percolate solutions.

The biogas will typically contain 60 per cent to 70 per cent methane and 20 per cent to 30 per cent CO₂ and a range of trace contaminant gasses, particularly H₂S. The occurrence of H₂S will depend on the precise nature of the MSW processed.

The biogas produced is cleaned to remove the H₂S prior to being used for electricity generation in a purpose-designed power station, and for process heat generation in gas fired water heaters