Transcription of Basic Water Treatment Math Formulas for Surface and ... - NC
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Basic Water Treatment Math Formulas for Surface and ... - NC
Revised 9/15 Basic Water Treatment math Formulas for Surface and Well Exams These Formulas are intended to serve as a general resource and are not intended to be an all inclusive list. AREA Rectangle: A, ft2 = L * W Circle: A, ft2 = * D2 VOLUME Rectangular Tank: V, ft3 = L * W * H Circular Pipe or Tank: V, ft3 = * D2 * H FORCE Force, lbs = Area, Sq. Inches x PSI DOSAGE (Pounds Formula) Lbs = mg/L * MGD * Mg/L = lbs MGD * FLUORIDATION AFI = Molecular Weight of Fluoride/Total Molecular Weight of Chemical * (100) Feed Rate, lbs/day = (Dosage, mg/L)(Flow, MGD)( , lbs/gal) (Fluoride Solution, as a decimal)(Purity, as a decimal) Feed Rate, gpd = Feed Rate, lbs/day Chemical Solution, lbs/gal Feed Dose, mg/L = Desired Dose, mg/L Actual Concentration, mg/L Mixture Strength, % = (Tank, gal)(Tank, %)+(Vendor, gal)(Vendor, %) Tank, gal + Vendor, gal For Saturator Feed Rate, gpd = Capacity, gpd * dose, mg/L 18,000 mg/L FILTRATION Filtration Rate (gpm/ft2) = flow, gpm Surface Area ft2 Backwash Water , (gal) = (Backwash Flow, gpm)
Basic Water Treatment Math Formulas for Surface and Well Exams These formulas are intended to serve as a general resource and are not intended to be an all‐inclusive list. AREA Rectangle: A, ft2 = L * W Circle: A, ft2 = 0.785 * D2 VOLUME
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