Gas or liquid shrouding of {HEAD ~ gas streams} in {TAIL ~ the treatment system} may be provided by high efficiency inlet structures 
in
Gas or liquid shrouding of { HEAD ~ gas streams } in { TAIL ~ the treatment system } may be provided by high efficiency inlet structures
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH