Abstract: A centrifugal separator separates a mixture of fluid and particulate matter in a cylindrical tank. The mixture enters the tank tangentially through one passage. The mixture is swirled within the tank through the use of angled blades to guide flow rotation, increasing centrifugal force on the mixture. Separated fluid flows into a discharge pipe and out of the tank. The flow of fluid into the discharge pipe may be provided by an opening along the length of the pipe, the fluid may enter and exit the tank at opposing ends, and the angled blades may be circumferentially offset from adjacent blades.