The process improvement 1 wherein {HEAD ~ the resulting concentration} of the carbonate in the decanter measured in the form of carbon dioxide is {TAIL ~ 0.2 0.25 percent} 
is
The process improvement 1 wherein { HEAD ~ the resulting concentration } of the carbonate in the decanter measured in the form of carbon dioxide is { TAIL ~ 0.2 0.25 percent }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL