A rapid-mixing basin is to be designed for a water coagulation plant, and the design flow for the basin is 15,140 m3/d. The basin is to be square with a depth equal to 1.25 times the width. The velocity gradient is to be 900 s-1 (at 10°C), and the detention time is 30s. Determine: a. The basin dimensions. b. The input power required. c. The impeller speed if a vane-disc impeller with six flat blades is employed and the tank is baffled. The impeller is to be 50% of the basin width. (use viscosity (u) = 0.0013 N-s/m²)
A rapid-mixing basin is to be designed for a water coagulation plant, and the design flow for the basin is 15,140 m3/d. The basin is to be square with a depth equal to 1.25 times the width. The velocity gradient is to be 900 s-1 (at 10°C), and the detention time is 30s. Determine: a. The basin dimensions. b. The input power required. c. The impeller speed if a vane-disc impeller with six flat blades is employed and the tank is baffled. The impeller is to be 50% of the basin width. (use viscosity (u) = 0.0013 N-s/m²)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A rapid-mixing basin is to be designed for a water coagulation plant, and the design flow for the basin is 15,140 m3/d. The
basin is to be square with a depth equal to 1.25 times the width. The velocity gradient is to be 900 s-1 (at 10°C), and the
detention time is 30s. Determine:
a. The basin dimensions.
b. The input power required.
c. The impeller speed if a vane-disc impeller with six flat blades is employed and the tank is baffled. The impeller is to be
50% of the basin width.
(use viscosity (u) = 0.0013 N-s/m²)
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