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Waste stabilization pond is used to treat a dilute municipal wastewater before discharge into a river , Count = 11mg/L
What is unitary method?
- Area is the entire amount of space occupied by a flat (2-D) surface or an object's shape.
- On a sheet of paper, draw a square using a pencil. It has two dimensions. The area of a shape on paper is the area that it occupies.
- Consider your square as being composed of smaller unit squares.
- The number of unit squares necessary to completely cover the surface area of a specific 2-D shape is used to calculate the area of a figure. Some typical units for measuring area are square cms, square feet, square inches, square meters, etc.
- Draw unit squares with 1-centimeter sides in order to calculate the area of the square figures shown below. The shape will therefore be measured.
According to our question-
Qin = 4 000m3/day
Cin = 25mg/L
V = 20 000m3
k = 0.25/day
Find: Count = ?
outStarting from the mass balance equation for steady state 0 = QCin - QCount - kCountV
manipulate the equation to get:
\(Count=Cin(Q/Q+kV)\)
Then simple plug in your givens:
Count = (25mg/L)((4000m3/day)/(4000m3/day + 0.25/day(20000m3))
Count = 11mg/L
Hence, Waste stabilization pond is used to treat a dilute municipal wastewater before discharge into a river , Count = 11mg/L.
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