An apparatus for separating {HEAD ~ a substance} from a liquid within which said {TAIL ~ substance} is contained comprising: 
An apparatus for separating { HEAD ~ a substance } from a liquid within which said { TAIL ~ substance } is contained comprising :
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH