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WSP10774
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Last modified
1/26/2010 3:14:39 PM
Creation date
10/12/2006 4:31:48 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8271.200
Description
Colorado River Basin Salinity Control Program - Development and History - UCRB 13a Assessment
Basin
Colorado Mainstem
Water Division
5
Date
1/1/1979
Title
Costs of Wastewater Disposal in Coal Gasification and Oil Shale Processing
Water Supply Pro - Doc Type
Report/Study
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<br />,,-... <br />en <br />...... <br />.;::. <br /> <br />Quantity: Estimated to be in the range of 260 to 770 gpm (= 420 - 1240 <br /> <br /> <br />acre ft/yr), if used to moisturize shale, and in range <br /> <br />100 - 300 gpm (= 160 - 480 acre-ft/yr) if disposed of in <br /> <br /> <br />evaporation ponds. <br /> <br />Will be of better quality than the blowdown quality shown <br /> <br />Quali tv: <br /> <br />on Table 2-12 for the gasification processes because the <br /> <br />phenol content in ~he retorting and u~grading wastewaters <br /> <br />are much lower and the dilution water from the river is much <br /> <br />larger. <br />Disposal: (1) Will probably be used to moisturize spent shale at negligible <br />cost. <br /> <br />(2) Disposal in a lined evaporation pond will be in range 0.2 <br />0.6e/l06 Stu. Area of ponds will be in range 55-165 acres. <br />(3) Slowdown might first be treated by vapor compression <br />evaporation and then disposed or in much smaller ponds. Cost will <br />be in range 0.3 - 1.5e/106 Stu with pond area not exceeding <br />15 acres. <br /> <br />d) Sour Water Stri;ce~ Wastewater <br />Quantity: Estimated to be about 260 gpm (= 420 acre-ft/yr). <br />Quality: CGD in range 500-1500 mg/l, phenols in range 80-150 mg/l and <br />ammonia in range 25-50 mg/l. <br />Disposal: For dust control within the plant after treatment =y flotaticn <br />and biological oxidation at a cost of SO.80 - 1.20/1000 gals or <br />6 <br />less than 0.2e/lO Btu of synthetic crude. <br />e) Domestic Wastes from Plant <br />Quantitv: 15 gpm (= 24 acre-ft/yrl <br />Ouality: Typical domestic wastewater with a low TDS and a BOD of <br />200-250 mg/l after primary treatment. <br />Disposal: Secondary treatment by packaged activated sludge unit at a <br />6 <br />cost of 51.95/1000 gals ($640/acre-ftl. or O.Ole/lO 3tu. and <br /> <br />then used for revegetation or low quality water needs. <br /> <br />9 <br />
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