Utilizing {TAIL ~ the multiple stages} of reaction, {HEAD ~ very high levels} of mercury emissions may be controlled to greater reduction percentages than existing methods 
Utilizing { TAIL ~ the multiple stages } of reaction , { HEAD ~ very high levels } of mercury emissions may be controlled to greater reduction percentages than existing methods
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH