A water containing 50 mg/L of phosphate (PO.) is flowing in an open channel at a volumetric flow rate (Q) of 2 MGD (million gallons per day). (a) What is the concentration of phosphate expressed in (i) mg/L as PO, -P, (ii) mM as PO. , and (iii) mM as PO P. (b) Find the mass flow rate (S) of phosphate through any section perpendicular to the direction of flow in the open channel expressed in lb/day? Given: Atomic weights: P= 31 g/mole, O = 16 g/mole, 1 gallon = 3.785 L, 1 kg = 2.204 lb. %3D

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A water containing 50 mg/L of phosphate (PO,") is flowing in an open channel at a volumetric flow
rate (Q) of 2 MGD (million gallons per day).
(a) What is the concentration of phosphate expressed in
(i) mg/L as PO, --P,
(ii) mM as PO., and
(iii) mM as PO, P.
(b) Find the mass flow rate (S) of phosphate through any section perpendicular to the direction of
flow in the open channel expressed in lb/day?
Given: Atomic weights: P= 31 g/mole, O = 16 g/mole, 1 gallon = 3.785 L, 1 kg = 2.204 Ib.
%3D
Transcribed Image Text:A water containing 50 mg/L of phosphate (PO,") is flowing in an open channel at a volumetric flow rate (Q) of 2 MGD (million gallons per day). (a) What is the concentration of phosphate expressed in (i) mg/L as PO, --P, (ii) mM as PO., and (iii) mM as PO, P. (b) Find the mass flow rate (S) of phosphate through any section perpendicular to the direction of flow in the open channel expressed in lb/day? Given: Atomic weights: P= 31 g/mole, O = 16 g/mole, 1 gallon = 3.785 L, 1 kg = 2.204 Ib. %3D
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