How sewage can be used to heat and cool buildings
DENVER (AP) — When a massive event center was being developed in Denver, planners had to contend with two existing 6-foot (1.8 meters) wide sewer pipes that emptied into the river, creating an unsightly dilemma. Developers wanted to bury them. The utility said the wastewater needed to vent heat before entering the river. There, a [...]
