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06/28/89 09:39 a 303 278 1528 HAZEN RESEARCH 02 <br /> Ch racteri n solift_ in Mid-Continent Resources. Inc M' Drainage <br /> (HRl Pro,i. 006-0/7, 6/22/84, 1880-122) <br /> am le: 5-gallon bucket of mine drainage water received 6/23/89, pm, from <br /> Mid-Continent Resources, Inc., Carbondale, CO. <br /> Labeled: "Worst' <br /> Treatment-* The entire sample was flocculated with percol 351, and allowed to <br /> settle. The slightly hazy supernatant was decanted and the settled <br /> Slurry ( (I liter) filtered to recover the contained solids. <br /> am onentS. <br /> Water 17.50 1, specific gravity 1.00. <br /> Solids 45.80 g, composed of mostly fine coal particles. <br /> SaI j_ds Content: <br /> % Solids 0.261 % (wt) <br /> ppm 2610 ppm (wt) <br /> s ids S ecific Gravy_ -. <br /> 1.79 (true) <br /> lids Sire Qistribution: <br /> Size, mesh/micron Weig t <br /> Cumu ative <br /> asp_ eta:ne Direct etaine Passing <br /> 28m 18.0 18.0 82.0 <br /> 28m loom 23.0 41.0 59.0 <br /> loom 200m 14.1 55.1 44.9 <br /> 200m 400m 11.2 66.3 33.7 <br /> 400m 20u 10.5 76.7 23.3 <br /> 20u 30u 5.7 82.4 17.6 <br /> IOU Su 3.0 85.4 14.6 <br /> 5u pan 14.6 100.0 0.0 HAZEN REStA.ROIJ INC. <br /> Total: 100.o PRELIMINARY DATA <br /> larif ation f �-Z7-t�q <br /> Hazy Supernatant <br /> ' Additive C ar y Suspen e <br /> pecaes A e as Time Solids <br /> hrs ppm Description of Filter Deposit <br /> 0 25 Dar raven epos t mg7 m <br /> 65 (1 Light tan deposit, not weighable. <br /> Ca+2 Ca(0102 pH 9.3 65 <br /> (1 Off-white discoloration of filter. <br /> (=160 ppm) <br /> A1+3 A)2(SD4)3 IO ppm 65 <br /> ll Barely discernable discoloration. <br />