{HEAD ~ The combined treatment} is added, for example, to cooling water systems, paper and pulp mill systems, pools, {TAIL ~ ponds}, lagoons, lakes, etc., to control the formation of bacterial microorganisms, which may be contained by, or which may become entrained in, the system to be treated 
is added to
{ HEAD ~ The combined treatment } is added , for example , to cooling water systems , paper and pulp mill systems , pools , { TAIL ~ ponds } , lagoons , lakes , etc . , to control the formation of bacterial microorganisms , which may be contained by , or which may become entrained in , the system to be treated
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH