TABLE 23.  SWINE 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/135 lb/day estc - - - 2.7 - 23 169
Density lb/gal est - - - 8.3 - - -
TS %wb 222 0.080 1.0 0.28 0.32 0.18 0.073 0.54
TSS %db 4 16 28 25 23 4.6 0.017 0.13
VS %db 117 30 64 44 45 6.7 0.033 0.24
ALKA mg/L 123 738 5025 2105 2351 902 0.054 0.40
BOD5 mg/L 18 392 1189 614 691 240 0.016 0.12
COD mg/L 207 482 6869 1285 1658 1115 0.038 0.28
HARD mg/L 36 166 376 223 235 44 0.0054 0.040
TOC mg/L 69 116 760 210 238 122 0.0054 0.040
VA mg/L 49 99 1339 305 421 329 0.0096 0.071
pH 179 7.0 8.5 7.8 7.8 0.24 - -
TKN lb/acre-inch 1403 14 317 115 128 62 0.013 0.095
NH3N %tkn 229 48 100 83 81 11 0.010 0.077
NO3N lb/acre-inch 85 0.0012 3.7 0.029 0.21 0.58 0.000021 0.00015
P2O5 lb/acre-inch 1391 4.3 166 52 51 28 0.0051 0.038
PO4 %p2o5 113 23 97 87 79 19 0.0041 0.030
K2O lb/acre-inch 1379 11 355 123 132 71 0.013 0.098
Ag lb/acre-inch 1 0.00057 0.00057 0.00057 0.00057 - 0.000000057 0.00000042
Al lb/acre-inch 2 0.027 1.3 0.65 0.65 0.62 0.000065 0.00048
As lb/acre-inch 2 0.0011 0.024 0.013 0.013 0.012 0.0000013 0.000010
B lb/acre-inch 897 0.0014 0.50 0.14 0.15 0.098 0.000015 0.00011
Be lb/acre-inch 1 0.0011 0.0011 0.0011 0.0011 - 0.00000011 0.00000084
Ca lb/acre-inch 1312 4.5 88 23 28 13 0.0028 0.021
Cd lb/acre-inch 4 0.0014 0.017 0.0068 0.0080 0.0056 0.00000081 0.0000060
Cl lb/acre-inch 122 11 185 54 68 45 0.0069 0.051
Co lb/acre-inch 1 0.0057 0.0057 0.0057 0.0057 - 0.00000057 0.0000042
Cr lb/acre-inch 2 0.0027 0.068 0.035 0.035 0.033 0.0000036 0.000026
Cu lb/acre-inch 1228 0.0099 2.0 0.16 0.27 0.30 0.000027 0.00020
Fe lb/acre-inch 1199 0.18 12 1.4 1.8 1.5 0.00018 0.0013
Hg lb/acre-inch 1 0.000090 0.000090 0.000090 0.000090 - 0.0000000091 0.000000067
Li lb/acre-inch 1 0.0011 0.0011 0.0011 0.0011 - 0.00000011 0.00000084
Mg lb/acre-inch 1324 2.0 29 5.7 9.0 6.3 0.00091 0.0067
Mn lb/acre-inch 1199 0.034 1.4 0.11 0.20 0.21 0.000020 0.00015
Mo lb/acre-inch 1 0.0045 0.0045 0.0045 0.0045 - 0.00000045 0.0000034
Na lb/acre-inch 970 11 112 33 38 20 0.0038 0.028
Ni lb/acre-inch 8 0.21 0.87 39 0.48 0.24 0.000048 0.00035
Pb lb/acre-inch 3 0.00057 0.34 0.021 0.12 0.16 0.000012 0.000090
S lb/acre-inch 974 2.1 28 5.7 7.7 5.2 0.00077 0.0057
Se lb/acre-inch 1 0.00057 0.00057 0.00057 0.00057 - 0.000000057 0.00000042
Zn lb/acre-inch 1215 0.045 6.4 0.25 0.70 1.1 0.000071 0.00052
Cond umho/cm 153 1488 9701 4323 4612 1796 - -
EC cols/100 mL 2 1.20E+04 5.30E+05 2.58E+05 2.70E+05 2.58E+05 2.79E+07 2.07E+08
FC cols/100 mL 9 2.30E+05 1.10E+06 5.40E+05 5.48E+05 2.91E+05 5.67E+07 4.20E+08
FS cols/100 mL 1 5.00E+05 5.00E+05 5.00E+05 5.00E+05 - 5.17E+07 3.83E+08
TB cols/100 mL 1 8.50E+07 8.50E+07 8.50E+07 8.50E+07 - 8.80E+09 6.52E+10
TC cols/100 mL 7 4.00E+05 5.70E+06 1.40E+06 2.37E+06 2.15E+06 2.45E+08 1.82E+09
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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.