Increasing landfill gas production and recovery

The initial biogas recovered is an MHV gas and is often upgraded to high heat value (HHV) gas when used for blending with natural gas supplies. The annual production of HHV gas in 1987, produced by 11 HHV gasification facilities, was 116 x 106 m3 of pipeline-quality gas, ie, 0.004 EJ (121). This is an increase from the 1980 production of 11.3 x 106 m3. Another 38 landfill gas recovery plants produced an estimated 218 x 106 m3 of MHV gas, ie, 0.005 EJ. Additions to production can be expected because of landfill recovery sites that have been identified as suitable for methane recovery. In 1988, there were 51 sites in preliminary evaluation and 42 sites were proposed as potential sites (121). 

---