Multiple orders totaling eight regenerative thermal oxidizer systems have been received by Pro-Environmental Inc., Rancho Cucamonga, Calif. The oxidizer systems will handle distillers’ dried grains with solubles (DDGS) dryer emissions for six fuel ethanol plants in Iowa, Minnesota, Nebraska and Illinois.

Pro-Environmental is supplying regenerative thermal oxidizers designed for 99 percent destruction reduction efficiency (DRE) for VOCs and HAPs with 95 percent primary heat recovery to minimize auxiliary fuel usage. The company will design, fabricate and provide full-time installation supervision, startup and diagnostic testing of the oxidizer systems.