TABLE 14.BEEF ANAEROBIC LAGOON LIQUID 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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Liquidb gal/800 lb/day estc - - - 9.8 - 82 103
Density lb/gal est - - - 8.3 - - -
TS %wb 12 0.10 1.2 0.45 0.59 0.35 0.49 0.61
TSS %db 1 70 70 70 70.37 - 0.34 0.43
VS %db 2 31 62 46 46.41 15.59 0.23 0.28
VSS %db 1 17 17 17 17.46 - 0.085 0.11
BOD5 mg/L 2 717 818 768 768 50 0.063 0.079
COD mg/L 10 1800 6185 2743 3197 1354 0.26 0.33
VA mg/L 2 260 400 330 330 70 0.027 0.034
HARD mg/L 5 464 726 588 592 86 0.049 0.061
ALKA mg/L 6 1148 2000 1492 1526 360 0.13 0.16
pH 7 6.8 7.8 7.7 7.6 0.34 - -
TKN lb/acre-inch 17 39 159 91 92 38 0.033 0.042
NH3N %tkn 6 50 92 65 68 14 0.023 0.028
NO3N lb/acre-inch 1 0.0084 0.0084 0.0084 0.0084 - 0.0000030 0.0000038
P2O5 lb/acre-inch 15 30 104 52 50 17 0.018 0.022
PO4 %p2o5 5 76 86 83 82 3.4 0.015 0.018
K2O lb/acre-inch 18 60 248 136 134 51 0.048 0.061
Ca lb/acre-inch 13 13 68 23 31 15 0.011 0.014
Mg lb/acre-inch 13 5.7 26 23 18 7.3 0.0066 0.0083
S lb/acre-inch 6 5.7 23 5.7 8.5 6.3 0.0031 0.0038
Na lb/acre-inch 12 7.5 46 31 32 13 0.012 0.014
Cl lb/acre-inch 7 54 182 105 115 39 0.042 0.052
Fe lb/acre-inch 7 0.91 4.5 1.6 2.4 1.4 0.00086 0.0011
Mn lb/acre-inch 6 0.068 0.95 0.17 0.31 0.31 0.00011 0.00014
B lb/acre-inch 6 0.014 0.22 0.073 0.10 0.085 0.000037 0.000047
Zn lb/acre-inch 7 0.091 0.91 0.36 0.38 0.27 0.00014 0.00017
Cu lb/acre-inch 6 0.088 0.11 0.091 0.096 0.0089 0.000035 0.000043
Cond umho/cm 6 2510 3700 3209 3216 415 - -
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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 Estimated lagoon liquid includes manure, excess water usage, average annual lagoon surface rainfall surplus;
does not include fresh water for flushing or lot runoff.
c Mean value extrapolated from other data; measured values not available.