Laserfiche WebLink
Titrate Mass Balance Calculation <br /> Parcel 19 <br /> �f <br /> i <br /> Data Input: <br /> I <br /> Effluent Quantity(Q): 630 gals/day Concentration Rain (Nb): 1.00 mg/L-N <br /> i <br /> Effluent Stream (N,w): 45.00 mg/L-N Denitrification (d): 15.0% <br /> Site Area(A): 9.81 Acres Deep Perc. of Rain (R): 3.54 in/yr <br /> Waste Loading(W): 0.86 in/yr <br /> I <br /> Result: ; <br /> Mass Balance(N j: 8.3 mg/L-N <br /> t MCL Drinking Water Nitrate as N: 10.0 mg/L-N <br /> Percent of MCL Nitrate as N 83% <br /> Equations: <br /> Find ? <br /> (VU) in = (Q) gal x 1 ft3 x 365 day x 1 acre x 12 in x 1 �. I <br /> yr day 7.48 gal 1 year 43,560 ftz 1 ft (A)acre <br /> 0.86 in/yr(site) =630 ga!/day x(i cu-ft/7.48 gals)x(365 days/1 year)x(1 acre/43,560 sq-ft)x(12 in/1 ft)x(1 site/9.81 acres) <br /> FiN,= WN-(1-dibHantzsche-Fennemore Equation(Nc) <br /> W+R <br /> 8.3 mg/L-N=((0.86 in/yr x 45 mg/L-N x(1-0.15))+(3.54 in/yr x 1mg/L-N))/(0.86 in/yr+3.54 in/yr) <br /> Variables: <br /> Nc=Average nitrate-N concentration(mg/1) of combined effluent and rainfall percolate (8.3 mg/L-N). <br /> W= Uniform waste water loading for study area (in/yr) (0.86 inches/year). <br /> Nw=Total nitrate-N concentration of waste water percolate(45 mg/L-N). <br /> d=Fraction of nitrate-N loss due to denitrification in the soil (15%). <br /> R=Uniform deep percolation of rainfall (3.54 in/yr). <br /> T Nb=Background nitrate-N concentration of rainfall (1 mg/L-N). <br /> Assumptions: <br /> 1. Total nitrogen concentration of waste stream based on estimate of 45 mg/L-N. <br /> Lx 2. Fraction of nitrate-N loss due to denitrification in the soil is assumed to be 15%. i <br /> 3. Estimated deep percolation of rainfall is 3.54 in/yr, see deep percolation of rain worksheet. <br /> 4. Assume background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> i <br /> i <br /> i <br /> I <br /> I <br /> NEIL O. ANDERSON <br /> AN D ASSOCIATES j <br /> i <br /> ) i <br /> Plate 21 <br /> I <br />