What if your biogas could contain more methane and less CO2? It would be even greener and have more energy in it. In ABC Operator Training students learn that in the middle of the 4 steps of anaerobic digestion hydrogen is created and then consumed to make the methane in biogas. When the hydrogen runs out CO2 is generated, essentially. SO, you would think that if you injected more hydrogen in the middle of the AD process, you should be able to produce MORE methane and LESS CO2. A company called “Technology & Investment Solutions” was just awarded a $2 million grant from the California Energy Commission to demonstrate just that and fuel a small fleet of refuse trucks. More >>
