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Plate 2. <br /> Coldani Winery Olive Mill <br /> Nitrate Mass Balance Calculation <br /> (CIMIS Evapotranspiration Method) <br /> Nitrate Loading Calculations.- <br /> Variable <br /> alculations:VariableValue Units Description <br /> Q 138 gallons per day Effluent flow rate from report <br /> Nw 85 mg/L-N Effluent stream concentration from report <br /> A 10.31 acres Site area from report <br /> Nb 1.00 mg/L-N Concentration of rain water from report <br /> d 0.25 constant Denitrification factor from report <br /> R 12.60 inches per year Recharge rate of percolating waters from report(evapotranspiration method) <br /> W 0.2 inches per year Uniform waste water loading for site calculation result <br /> Nc 1.9 nri RESULT: Long-term average concentration of percolating effluent <br /> Find Variable <br /> (W) in = (Q) gal x 1 W x 365 day(s) x 1 acre x 12 in x 1 site <br /> yr day 7.48 gal 1 year 43,560 ft2 1 ft (A)acre(s) <br /> 0.18 in/yr(site) = 138 gailday x(1 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/10.31 acres) <br /> Hantzsche-Fennemore Equation (Nc): <br /> N,= WN (1-d)+RNc <br /> W+R <br /> 1.88 mg/L-N=((0.18 in/yr x 85 mg/L-N x(1-0.25)) +(12.6 in/yr x 1 mg/L-N))/(0.18 inlyr+ 12.6 in/yr) <br /> Assumptions: <br /> 1. Total nitrogen concentration of influent waste stream is 85 mgr'L-N. If different influent concentrations exist.use weighted average <br /> 2. Fraction of nitrate-N loss due to denitrification in the soil is 25%. <br /> 3. Estimated deep percolation of rainfall is 12.6 inlyr. <br /> 4. Background nitrate-N concentration of rainfall is 1 mg/L-N. <br /> LOGE 1903 March 21,2019 <br />