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Te To flo.culo.htsi <br /> {wnt Ont /vnL' <br /> Sino{Cmdl{//AK/J <br /> change flan.rnscr F-7ouipul /o s -LOmA <br /> \� iblymt. <br /> Am4e* Rump <br /> Fran Ck atr,, —y rof/ly Water <br /> *Tnk Corr Fla <br /> 7AbddlP whArl Sahh <br /> "T ensaY (AI IA ) <br /> 1639 R ymsr Ze44- Polymer <br /> *%MK hank- <br /> Rsnb.bk x,nplrr <br /> FIGURE 3-7 POLYMER FEED OPERATION <br /> 3. 5 POLYMER FEED When wastewater reaches the top of the <br /> OPERATION clarifier tank and flows out to the <br /> city, the paddle wheel flosensor sends a <br /> signal to the signal conditioner; the <br /> signal conditioner changes the flow <br /> sensor output to the current range from <br /> 4 - 20mA; both polymer metering pumps <br /> use the current 4 - 20 mA signal to <br /> operate. <br /> -2839 polymer will feed pH adjustment <br /> tank 2 . <br /> -2844 polymer will feed the <br /> flocculation tank. <br /> Both Kari float switch's in the polymer <br /> tanks will send a signal to energize <br /> the alarm to warn the operator that the <br /> tank needs to be refilled. <br /> 15 <br />