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<br />.."" <br />en <br />co <br />o <br /> <br />TABLE 4-3. ESTIMATED WATER BALANCE ~ITH MINE ~ATER I~PUT FOR ~ODIFrED <br />IN SITU RETORTING TO PRODUCE 57.000 BBLS/DAY OF Sf-ALE OIL <br />AND 300 MW OF ELECTRIC POWER (a) <br /> <br />IN TO PLANT <br /> <br />~ <br />l,660(b) <br /> <br />1.845(c) <br /> <br />125 (d) <br /> <br />260 (e) <br /> <br />3,890 <br /> <br />MIS Retort Water <br /> <br />Mine Water <br /> <br />Plant & Mine Area Runoff <br /> <br />Shale Disposal Area Runoff <br /> <br />Ot"!' OR CONSUMEO <br /> <br />l,700(f) <br />850(g) <br />670(hl <br />310 (i) <br />50 (j) <br />no(kl <br />100 <br />3,890 <br /> <br />Steam into Retort <br /> <br />Cooling Tower ~Japoration <br />Shal~ Disposal, Dust Control & Reveget. <br /> <br />?!"ocess Uses <br /> <br />Evaporation & Potable <br />Mine Uses (Including Dust Control) <br />~scellaneous Uses <br /> <br />Excess ~ne Drainaqe Water to ~e (1) <br />reinjected and/or Treated for Disposal 2,150-9,400 <br /> <br />(al <br />Ib) <br />Ie) <br />{dl <br />(e) <br />(f) <br />{gJ <br /> <br />Generated by combined cycle syste~. <br />One par~ retcrt water to one ?art shale oil by volume. <br />Quantity requi"ed for balance. <br />Quantity estimated in Section 2.2. <br />Estimaeed on 5 L~/yr of runoff and drainage over 1,000 acres. <br />Assumed to be the same as in Fig_ III-~, Ref. 1. See 3150 footnote (g) Table 4-1. <br />One-fourth of electricity (75 MW) assumed to be generated by steam ~~rbines. <br />Approximately 150 MW of heat will therefore be dissipated in evaporativ~ cooling <br />tower at about 1400 Btu transferred/lb of water evaporated. This yields an <br />evaporation ~at~ of 730 gpm. An additional 120 gpm is ass~ed to be evapor- <br />ated for auxiliary cooling (see Rio Slanco estimate, Table 4-2). Evaporatio~ is <br />about 1/4 of value in Table 4-2 because gas is =ompressed after ~~d ~C~ before <br />gas purification, ~'ereby ob3iating a large cooling load. <br />Estimated at 100 lb water/lO Ib disposed shale, which is equal to 10\ by welght <br />of 40,000 ~ons/day of disoosed shale (cf. Table 7.11, Ref. 6). <br />From Oxy water balance. T~le 4-2. -- <br />Consump~ion of 25 gpm for 1,500 people (see p. 207, Reo. 6) plus 25 gpm <br />for evaporation (see p. 20~, Ref. 6 and Ref. 3). <br />~ne use at 32 lb water/1Q Ib mined out shale (see p. 195, Ref. 6). <br />Calculated from ~inimum and maximum values of mine drainage water given :~ <br />Table 4-2 and mine water usage shown. <br /> <br />(nJ <br /> <br />(i) <br />(j) <br /> <br />(k) <br />ill <br />