Southgate Renewables is a facility currently under development in Dundalk, Ontario for the processing and conversion of source separated organics (SSO) into biogas which is then upgraded to renewable natural gas (RNG). The facility will recycle 73,000 tonnes/year of SSO from "green bin" programs from municipalities throughout Ontario.
The SSO will be anaerobically digested in two 4,200 m³ tanks over 30 days. Digestion creates two key products; biogas and digestate. The biogas, a mixture rich in methane and carbon dioxide, will be polished and converted to RNG using a Biogas Upgrading System (BUS).
RNG generated by the Facility will be injected into the Enbridge Inc. natural gas distribution network and used as a renewable alternative to heating homes and businesses. The digestate is further processed to produce an organic fertilizer that is used by local farmers to offset chemical fertilizer consumption.
Southgate Renewables, through the diversion of organic residuals from landfills, generation of renewable natural gas, and production of fertilizer from waste, is a leader in the realization of the circular economy.