BgPur is Eco-Tec’s proven H2S removal system for treatment of biogas from anaerobic digesters or landfills. The system is capable of treating biogas with H2S concentrations of a few hundred ppmv to over 30,000 ppmv (3%) while reducing the H2S to a just a few ppm to meet downstream requirements for power generation or heating fuel, or to be sold for pipeline or transportation fuel.