Many wastewater treatment plants use biogas for energy. Most haven’t won EPA awards for their work. And it’s a good bet to say most aren’t dumping 20 tons of food waste into their digesters every month. Both can be said of the West Lafayette (Ind.) Wastewater Treatment Plant.
“The main project was to rehabilitate our aging digesters, to use biogas and two microturbines to produce electricity, and to use the waste heat for the anaerobic digesters,” says utility director Dave Henderson.
In 2007, the $8.4 million project won an EPA PISCES award for protection of environmental health and water quality. It was
