One important aspect about {HEAD ~ this process} is {TAIL ~ the circulation} of RO permeate which save on pure water production and chemicals supply 
is
One important aspect about { HEAD ~ this process } is { TAIL ~ the circulation } of RO permeate which save on pure water production and chemicals supply
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH