Convert Your Waste into Biogas | GraniteFuel Engineering‎ Long term gas conditioning for WtE projects running on biogas. 10 Year+ Media Lifespan. Lowest Operating Costs. Site Specific Solutions. Brands: DCL International, Roadwarrior, GraniteFuel. www.granitefuel.com/Biogas/SRS Convert Your Waste into Biogas | GraniteFuel Engineering‎ Long term gas conditioning for WtE projects running on biogas. Lowest Operating Costs. Site Specific Solutions. 10 Year+ Media Lifespan. Brands: DCL International, Roadwarrior, GraniteFuel. www.granitefuel.com/Biogas/SRS |