He tries to keep his private life and public life 'separate' (from each other). = He tries to keep his private life 'separate' from his public life.
('US') He fell and 'separated' [='dislocated'] his shoulder. [=caused the bone in his shoulder to move out of its proper position]
The competition has been easy to this point, but now it gets tough and we'll really begin to 'separate the men from the boys'.
(..) So, the pump creates suction and delivers the contents of the troughs into this sluice box, which will separate liquid from particulates greater than . millimeters. Quite the impressive contrivance, Dr. Hodgins. Right? All right. (..)2014 TvShow: Bones Title: The Master in the Slop Season: 9 Episode 14
(..) That's hot. That's hot. The remains are in the pig troughs? Yes. I am setting up a filtration system that will allow us to separate liquid in the pig slop from any human remains, such as tissue, bones, organs... But you're not waiting. (..)2014 TvShow: Bones Title: The Master in the Slop Season: 9 Episode 14