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A rapid mixing design basin is to be designed for a water coagulation plant and the design flow for the basin is 20,000 m3/day. The basin is to be square with depth equal to 1.25 times the width. The velocity gradient is to be 900/s at 10degrees Celsius, and the detention time is 30 seconds. Determine: The basin dimensions The input power required The impeller speed if vane disc impeller with six flat blades is employed and the tank is baffled. The impeller is to be 50% of the basin width

A rapid mixing design basin is to be designed for a water coagulation plant and the design flow for the basin is 20,000 m3/day. The basin is to be square with depth equal to 1.25 times the width. The velocity gradient is to be 900/s at 10degrees Celsius, and the detention time is 30 seconds. Determine: The basin dimensions The input power required The impeller speed if vane disc impeller with six flat blades is employed and the tank is baffled. The impeller is to be 50% of the basin width

Sustainable Energy
Sustainable Energy
2nd Edition
ISBN:9781337551663
Author:DUNLAP, Richard A.
Publisher:DUNLAP, Richard A.
Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy
Section: Chapter Questions
Problem 14P
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A rapid mixing design basin is to be designed for a water coagulation plant and the design flow for the basin is 20,000 m3/day. The basin is to be square with depth equal to 1.25 times the width. The velocity gradient is to be 900/s at 10degrees Celsius, and the detention time is 30 seconds.

Determine:

  1. The basin dimensions
  2. The input power required
  3. The impeller speed if vane disc impeller with six flat blades is employed and the tank is baffled. The impeller is to be 50% of the basin width
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