TABLE 53.  LAYER LIQUID MANURE SLURRY CHARACTERISTICS *
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Parameter Unitsa Total Parameter Concentration Parameter Mass
No of ------------------------------------------------------------------------------- ------------lb/day/----------
Observ minimum maximum median mean std dev bird 1000 lb
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Slurryb gal/4 lb/day estc - - - 0.046 - 0.36 89
Density lb/gal 3 6.7 8.5 8.3 7.8 0.81 - -
TS %wb 48 2.7 25 11 11 6.3 0.040 10
TSS %db 1 21 21 21 21 - 0.0082 2.0
VS %db 16 51 79 66 66 8.0 0.026 6.6
VSS %db 1 17 17 17 17 - 0.0070 1.7
BOD5 mg/L 1 29818 29818 29818 29818 - 0.011 2.7
COD mg/L 28 41625 197583 109817 106040 50151 0.038 9.5
TOC mg/L 7 9128 17000 10792 11848 2529 0.0042 1.1
VA mg/L 8 5059 11063 7611 7752 1760 0.0028 0.7
ALKA mg/L 9 8750 22577 14070 15332 4273 0.0055 1.4
pH 22 6.5 8.0 7.1 7.1 0.34 - -
TKN lb/1000 gal 55 13 129 54 57 29 0.0026 0.65
NH3N %tkn 26 42 85 66 64 11 0.0017 0.42
NO3N lb/1000 gal 5 0.0017 0.85 0.39 0.37 0.32 0.000017 0.0042
P2O5 lb/1000 gal 40 14 109 47 52 27 0.0024 0.59
PO4 %p2o5 5 47 65 53 54 6.2 0.0013 0.32
K2O lb/1000 gal 46 5.3 59 31 33 14 0.0015 0.38
Ca lb/1000 gal 22 2.5 164 16 33 41 0.0015 0.38
Mg lb/1000 gal 25 0.21 11 3.0 4.0 3.4 0.00018 0.045
S lb/1000 gal 13 0.49 13 4.2 4.0 3.5 0.00018 0.046
Na lb/1000 gal 22 1.1 14 4.1 4.8 3.5 0.00022 0.055
Cl lb/1000 gal 9 3.5 8.8 7.4 6.6 2.0 0.00030 0.075
Fe lb/1000 gal 15 0.14 4.0 1.4 1.7 1.3 0.000078 0.019
Mn lb/1000 gal 11 0.054 0.73 0.28 0.38 0.24 0.000017 0.0043
B lb/1000 gal 8 0.014 0.049 0.025 0.030 0.011 0.0000014 0.00034
Al lb/1000 gal 1 0.97 0.97 0.97 0.97 - 0.000044 0.011
Zn lb/1000 gal 15 0.022 1.1 0.33 0.39 0.32 0.000018 0.0044
Cu lb/1000 gal 18 0.0058 0.23 0.053 0.073 0.059 0.0000033 0.00083
Cond umho/cm 14 10500 28450 16848 16962 4813 - -
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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 6-12 months accumulation of manure, excess water usage, storage surface rainfall surplus;
does not include fresh water for flushing or lot runoff.
c Mean value extrapolated from other data; measured values not available.