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Compost Mass Balance <br /> Forward RCSI <br /> ssum tions <br /> Type of biosolids Digested <br /> Design condition Dry weather,average conditions <br /> No recycled comp2st and no amendment <br /> Biosolids/Food Processing Residue/Septic Tank Pumping/HoldingTank Pum in /Grit/Grease <br /> Total solids concentration % 10 <br /> Volatile solids % 70 <br /> Percent VS degradation during composting % 25 <br /> Green waste/Wood Waste/MSW <br /> Moisture content % 30 <br /> Volatile solids % 90 <br /> Percent VS degradation during composting % 33 <br /> Amendment <br /> Moisture content % 40 <br /> Volatile solids % 90 <br /> Percent VS degradation during coMosting 33 <br /> Recycle compost <br /> Moisture content % 50 <br /> Percent VS degradation during composting % 10 <br /> Overs from screening <br /> Percent overs from screening 25 <br /> scent co stable overs 80 <br /> rcent VS degradation during composting % 20 <br /> Daily Quantities Assumes 260 day per year operation) <br /> Location Description Wet Percent Dry Density Volume Percent Volatile <br /> Tons Solids Tons Ibs/CY CY 1 Volatile Solids <br /> Solids tons <br /> 1 Biosolids/Food/Se ticlEct. 400 10 40 ';650 485 70 28 <br /> 2 Green waste/Wood/MSW a50 70 315 500 1,800 90 284 <br /> 3 Ammendment D 40 0. 500 0 90 0 <br /> 4 Water 63 0 01 19680 15,000 0 0 <br /> 5 Recycled compost `.0 50 01 7501 0 83 0 <br /> 6 Co stable overs 57 60 34 450 253 80 27 <br /> 7 Initial compost mixture 9701 401 389 900 2,155 87 339 <br /> 8 Ev ration/deco osition -498 -106 -106 <br /> 9 Mixture from composting 472 60 283 750 1,259 83 233 <br /> 10 Recycled compost 0 60F 0 750 0 $3 0 <br /> 11 Compost to screening 472 60 283 750 1,259 83 233 <br /> 12 Co stable overs 57 60 34 450 252 80 27 <br /> 13 Trash 38 $0 30 1,200 63 90 9 <br /> 14 Final com ost product 378 60 219 75Q 1,007 90 197 <br /> 1 Water expressed in gallons per da . <br /> Indicates assum tion that must be manually ingut <br /> W(weight of water/weight volatiles destro ed durin com ostin = 5.47 <br /> Generally W less than orequal to 10 indicates initial mixture has sufficient de radable material to achieve <br /> terneratures for eatho2en reduction. I I I I I j <br /> FN:dtr/a:\COMMASD.XLS Page 1 of 1 Printed:9/14/94 5:56 PM <br />