Degassing wells (n = 123) were built to collect the landfill biogas. Biogas generation monitoring data were obtained from January 2013 to January 2015. The tested MSWP biogas generally
contains 50–75% CH4, 25–45% CO2, 10–10,000 ppm H2S and small amounts of N2, O2, H2 and NH3 and is generated by the PP.