13. ABSTRACT (cont'd.)
150 cm would be less than 1 mg NO3-N/L if the applied NO3-N was 4 mg NO3-N/L, and less than 2 mg NO3-
+
N/L if 10 mg NO3-N/L was applied. The predicted NO4 concentration in the leachate was very low, even when
an initial, uniform saturation of 5.0 mg NH4-N/L in the soil profile was assumed. In field situations there would
+
be little, if any, NO4 present following tertiary treatment of wastewater. Based on these calculations, the pre-
dicted concentration of NH4-N in the applied effluent would remain within regulatory requirements.
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