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ifs <br />FIG. 2 <br />Thickener Material Composition <br />Thickener Volume <br />Feed to Thickener <br />% Solids (by weight) <br />pensity of Solids <br />Settling Rate <br />Cationic Feed <br />Anionic Feed <br />me of Solids to Pond 007 <br />704,973 gals. <br />4215 GPM <br />5.5% <br />90 PCF <br />6 inches/min. <br />10 parts/1,000,000 parts slurry feed <br />1 part/1,000,000 parts slurry feed <br />0.945 x 62.4 PCF = 58.97 PCF <br />0.055 x 90.0 PCF = 4.95 <br />Avg. density of <br />slurry in <br />thickener = 63.93 PCF <br />Total solids in thickener = 704,973 gals. X 1 cu. ft. X 63.921bs. X 0.055 <br />7.48 gals. cu.ft. <br />• <br />= 3,292,337 lbs. solids <br />With a setting rate of 6 inches/minute, 80% of the solids will be settled out in 24 <br />minutes 2090 of the solid mterial can be assumed to be in suspension when a <br />discharge occurs. <br />3.292,337 lbs X 0.20 X 1 cu.ft. X 1 Acre = 0.17 Acre-Ft: isch`arge <br />9016s. 43,560 f~ <br />Volume of flocculants to Pond 007/Discharge <br />704,973 gals X 1 PPM anionic = 0.7 gals anionic <br />704,973 gals X 10 PPM cationic = 7.0 gals cationic <br />• <br />