Henderson installed a filter station behind Camille’s Café on the Asheville campus of A-B Tech this past spring. Students in Sustainability Technologies and Construction Management built a shed to protect the filter and keep the vegetable oil from gelling in colder weather.
“The shed was made from leftover materials, from the small LEED house students built and other student projects, so there was no extra cost, and it was built using sustainable techniques taught on campus,” said Henderson.
The shed has large windows, so people can see the filter and samples of vegetable oil before and after filtration.
Café employees pour the used oil into a container, which is dumped into the filter by a Green Gold employee, usually about twice a week. The oil goes through a gravity-fed filtering system and into a 30-gallon storage barrel. The process allows about five gallons per hour to be filtered. “The café operators have been very helpful and supportive in these efforts,” Henderson said.
The recycled and cleaned oil from the Café is used for testing and demonstration purposes on campus and at events. Henderson also uses recycled oil from other sources as an alternative diesel fuel.