Pima County Hopes to Sell Wastewater Gas

By Murphy Woodhouse for Arizona Daily Star Last year the county’s Tres Rios Wastewater Reclamation facility produced around 254M cubic feet of so-called biogas, a byproduct of the wastewater treatment process that — if cleaned — could supplant the natural gas consumption of more than 5,000 homes. However, most of the potentially valuable resource is […]