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