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Compost Mass Balance <br /> Forward RCSI <br /> ssum tions <br /> Type of biosolids Di ested <br /> Design condition Dry weather,average conditions <br /> No recycled compost and no amendment <br /> Biosolids/Food Processing Residue/ tic Tank Pumping/HoldingTank Pum in /Grit/Grease <br /> Total solids concentration % 15 <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 de radation during composting % 33 <br /> Amendment <br /> Moisture content % 40 <br /> Volatile solids % 90 <br /> Percent VS degradation during composting % 33 <br /> jRecycle compost <br /> Moisture content % 50 <br /> Percent VS degradation during composting % 10 <br /> Overs from screening <br /> Percent overs from screening 25 <br /> scent com ostable 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 tic/Ect. 0 15; .0 11650 0 70 0 <br /> 2 Green waste/Wood/MSW 50070 350, 500 2,000 _ 90 315 <br /> 3 Ammendment D 40 0 500 0 90 0 <br /> 4 Water 4171 0 0, 1,680 100,000 0 0 <br /> 5 R cled compost0 50 0 750 OE 83 0 <br /> 6 Co stable overs 55 60 33 450 244 80 26 <br /> 7 Initial compost mixture 972 39 383 900 2,160 89 341 <br /> 8 Evaporation/decomposition -516 -109 -109 <br /> 9 Mixture from com ostin 456 60 274 ?50 1,217 83 232 <br /> 10 Recycled compost 0 60-----70 750 0 83 0 <br /> 11 Compost to screening 4561 60 274 750 1,2171 63 232 <br /> 12 Com stable overs 55 60 33 450 243 80 26 <br /> 13 Trash 37 80 29 ' 1,200 61 30 9 <br /> 14 Final com ost groduct 365 60 212 750 973 93 197 <br /> 1 Water expressed in gallons per day. <br /> Indicates assum tion that must be manually input <br /> W(weight of water/weight volatiles destroyed during com ostin = 5.39 <br /> Generally W less than orequal to 10 indicates initial mixture has sufficient de radable material to achieve <br /> tem ratures for eathogen reduction. <br /> FN:dtr/a:\COMMASD.XLS Page 1 of 1 Printed:9/14/94 6:00 PM <br />