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Compost Mass Balance <br /> Forward RCS( <br /> ssum tions <br /> fype of biosolids Digested <br /> Design condition Wet weather,average conditions <br /> No amendment or recycle compoSt <br /> Biosolids/Food Processing Residue/Septic Tank Pumipin s/Holding Tank Pum pings/Grit/Grease <br /> Total solids concentration % 15 <br /> Volatile solids % 70 <br /> Percent VS de radatlon during composting % 20 <br /> Green waste/Wood WasteWSW <br /> Moisture content °b► 50 <br /> Volatile solids % 90 <br /> Percent VS degradation dudnR composting % 33 <br /> Amendment <br /> Moisture content 40 <br /> Volatile solids(OA) 90 <br /> Percent VS degradation during compost % 33 <br /> fRecycle compost <br /> Moisture content °k 50 <br /> Percent VS degradation during costin % 10 <br /> Overs from screening <br /> Percent avers from screening25 <br /> 'rcent compostable overs 801 —1 <br /> scent VS degradation during composting °I° 201 1 <br /> Daily Quantities Assumes 260 d per yearo ration <br /> Location Descri tion Wet Percent Dry Density Volume Percent Volatile <br /> Tons Solids Tons lbs/CY CY 1 Volatile Solids <br /> Solids tons)- <br /> -I Siosolids/Food/Se tic/Etc. 300 15 ± i. ;;i :!T; 's`� 364 70 32 <br /> 2 Green waste/Wood/MSW 50 350; ; a X650 2,154 <br /> • ' . 9 315 <br /> laSD 0 9 p3 AmmendmeM 60 0 <br /> O 0 <br /> 4 watero 0 0 .::zx.; 80I.11 .i. :G�? 0 0 <br /> 5 Recycled compost ` °C} 50 0 900 0 82 0 <br /> 6 Co table overs i ; ;v tlda� 50 43 �'E I , 283 80 34 <br /> iliiil <br /> 7 Initial compost mixture 1,085i0 43B :;LVj1;OOQ, 2,170 87 381 <br /> 8 Ev ration/decom osition -444 -117 -117 <br /> 9 Mixture from com tin 641: <br /> ''` S0 320 !BW 1,424 82 263 <br /> 10 Recycled co 0 50 0 900 0 82 0 <br /> 11 Compost to screening 641 501 3201 900 1,424 8?1 263 <br /> 12 Co ostable overs 85 50 43 600 285 ' ':' 80 34 <br /> 13 Trash43 :; $Q, 34 ; 11;2W 711,1;1:x;; ;90 10 <br /> 14 Final compost product 43 501 244 E ,900 1,1391 901 219 <br /> 1 Water expressed in gallons per dry--I--- <br /> Indicates <br /> a Indicates assumption that must be manuall in ut <br /> W(weight of water/weight volatiles destroyed during composting)-- 5.53 <br /> Generally W less than orequal to 10 indicates initial mixture has sufficient degradable material to achieve <br /> temperatures for pathogen reduction. <br /> FN:dV/a:1COMMASW.XLS Page 1 of 1 Printed:9/14//94 6:06 PM <br />