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N <br />DETOXIFICATION PROCESS 8 ASSOCIATED COSTS cont'd <br />STEP 1 cont'd <br />SUBTASK B ..... Task description Install. maintain and repair sprinkler system <br />Data reference `^ <br />:Means equip. rental cast data 1992 <br />5118 <br />STEP 2 ........ Task description Neutralize remaining cyanide <br />SUBTASK A ..... Task description Add H2O2 to pad <br />Task execution notes Purchase. transport and unload reagent <br />Spray reagent onto pad <br />Quantities <br />Cyanide concentration at STEP 2 56 ppm. Weight of 1 pore volume = 479.197 pounds <br />(after STEP 1 rinsing) "^"^^^" <br />Cyanide quantity = 26.84 lbs. total <br />Data reference <br />Last sample analysis results of leachate in June 1985 <br />Materials <br />Neutralization reagent description H2O2 Hydrogen peroxide <br />Ratio of reagent quantity to CN quantity = 3 to 1 ratio. <br />Required quantrty = 80.5 pounds. Container type 55 gallon drum <br />Container weight = """"" " 50^0 pounds. Reagent concentration factor = __^" ""_^50 00k <br />Net pounds active reagent per ~:ontainer = 25.00 No. containers req'd = 3.2 <br />Active reagent unit cost = f0.9600 per lb. Total material cost= i77 <br />Delivery <br />Assume 0.00 hours total trucking time at f0.00 per hour.. = f0 <br />page 2 of 3 <br />