Actor Kevin Costner says BP has ordered 32 of his company 's oil cleanup machines . The Deepwater Horizon rig exploded and sank in the Gulf of Mexico on April 20, killing 11 people and spewing millions of gallons of crude into the water. Devices use centrifuge to separate oil from water , recycle crude .
Actor Kevin Costner says BP has ordered 32 of his company 's oil cleanup machines . Costner began developing machine with brother in early '90s . Devices use centrifuge to separate oil from water , recycle crude .