Answered: A one cell rapid sand filter tank has a…

A one cell rapid sand filter tank has a loading rate 9.0 m/h, surface dimensions of 15*6 m. The sand and gravel depths are 70 cm and 60 cm respectively. The height

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter5: Soil Improvement And Ground Modification

Section: Chapter Questions

Problem 5.11P

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Question

A one cell rapid sand filter tank has a loading rate 9.0 m/h, surface dimensions of 15*6 m. The sand and gravel depths are 70 cm and 60 cm respectively. The height of wash trough is 50 cm and the height of water above surface of sand is 2.0 m. Note that Shape factor of sand is 0.80 and stratified bed porosity is 0.50. a) What flow rate (m³/sec) does the filter handle during production? b) What is the total height of filter basin (m)? c) Calculate the head loss if the value of this term [2 (Co fid)] equal to 105700. d) In your opinion this filter tank specified the Saudi specifications?

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