TABLE 24.  SWINE ANAEROBIC LAGOON SLUDGE CHARACTERISTICS *
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Parameter Unitsa Total Parameter Concentration Parameter Mass
No of ------------------------------------------------------------------------------- -----------lb/day/-----------
Observ minimum maximum median mean std dev head 1000 lb
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Sludgeb gal/135 lb/day estc - - - 0.10 - 0.88 6.6
Density lb/gal 32 8.3 9.5 8.9 8.9 0.22 - -
TS %wb 60 3.4 37 9.0 10 5.2 0.089 0.66
VS %db 52 25 66 53 53 7.7 0.047 0.35
ALKA mg/L 2 2350 3550 2950 2950 600 0.0026 0.019
COD mg/L 58 15912 146085 68435 67443 24947 0.060 0.44
HARD mg/L 1 1496 1496 1496 1496 - 0.0013 0.0098
TOC mg/L 47 2229 12638 5238 5641 2432 0.0050 0.037
pH 55 6.8 7.7 7.3 7.3 0.21 - -
TKN lb/1000 gal 235 3.0 64 22 24 13 0.0024 0.018
NH3N %tkn 59 12 56 23 24 7.5 0.00059 0.0044
NO3N lb/1000 gal 43 0.00023 0.012 0.0012 0.0019 0.0020 0.00000019 0.0000014
P2O5 lb/1000 gal 228 8.6 169 46 53 34 0.0052 0.039
PO4 %p2o5 53 14 61 37 37 11 0.0019 0.014
K2O lb/1000 gal 231 0.80 22 5.7 6.5 3.9 0.00065 0.0048
B lb/1000 gal 80 0.0027 0.039 0.011 0.013 0.0089 0.0000013 0.000010
Ca lb/1000 gal 224 1.1 81 18 24 17 0.0024 0.017
Cd lb/1000 gal 2 0.0017 0.0070 0.0043 0.0043 0.0027 0.00000043 0.0000032
Cl lb/1000 gal 52 0.59 3.7 1.3 1.4 0.62 0.00014 0.0010
Cr lb/1000 gal 1 0.027 0.027 0.027 0.027 - 0.0000027 0.000020
Cu lb/1000 gal 179 0.0033 1.8 0.20 0.30 0.32 0.000030 0.00022
Fe lb/1000 gal 175 0.053 14 1.7 2.6 2.7 0.00026 0.0020
Mg lb/1000 gal 228 0.17 29 5.0 6.8 5.9 0.00068 0.0050
Mn lb/1000 gal 176 0.0084 1.1 0.22 0.30 0.25 0.000030 0.00022
Mo lb/1000 gal 1 0.0095 0.0095 0.0095 0.0095 - 0.00000094 0.0000070
Na lb/1000 gal 93 0.83 5.9 1.7 2.0 1.1 0.00020 0.0015
Ni lb/1000 gal 2 0.0051 0.019 0.012 0.012 0.0071 0.0000012 0.0000090
Pb lb/1000 gal 2 0.021 0.033 0.027 0.027 0.0062 0.0000027 0.000020
S lb/1000 gal 81 1.7 14 4.2 5.0 3.1 0.00049 0.0037
Zn lb/1000 gal 174 0.058 3.0 0.68 0.79 0.55 0.000078 0.00058
Cond umho/cm 53 1720 5550 3198 3258 879 - -
TB cols/100 mL 1 1.70E+09 1.70E+09 1.70E+09 1.70E+09 - 6.41E+09 4.74E+10
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* References:Biological & Agricultural Engineering Dept, North Carolina State University, Jan 1994.
Agronomic Division, North Carolina Department of Agriculture & Consumer Services.
a All concentrations as is or wet basis (wb) except as noted dry matter basis (db); all mass values wb.
b No manure solids removal prior to lagoon input.
c Mean value extrapolated from regression analysis of measured values.