Waste & Recycling News reported on an award-winning science project in which three California eighth graders showed how different types of waste material produce different amounts of biogas in anaerobic digestion.
Charlie Hull, Bradley Warren and Justin Spitzer's May, honors students at Santiago Charter Middle School in Orange, spent three weeks studying of biogas generated from steer manure, human biosolids and food waste.
“The trio had measurable success with the experiment facilitated by Charlie's dad, Ray Hull, the business manager for Central Region Landfills, who helped them obtain their raw materials,” the magazine article said. “They collected human biosolids liquid from the
