Accordingly, there is provided {HEAD ~ a flotation column} consisting of {TAIL ~ a reactor} and a separator 
consisting of
Accordingly , there is provided { HEAD ~ a flotation column } consisting of { TAIL ~ a reactor } and a separator
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH