How can I find the interior dimensions (rounded to the nearest foot) of a rectangular grit tank basin to provide an average day hydraulic retention time (HRT) of 12 minutes with an average day influent flow of 3.0 MGD. Show answers on a dimensioned sketch. It does not have to be to scale but does need to be neat (drawn with straight edge). Work within the following constraints: Width to depth ratio of the liquid in the basin should be 1:1 Length to width ratio equals 3.5:1 Assume the inlet and outlets are on the opposite short sides of the rectangle
How can I find the interior dimensions (rounded to the nearest foot) of a rectangular grit tank basin to provide an average day hydraulic retention time (HRT) of 12 minutes with an average day influent flow of 3.0 MGD. Show answers on a dimensioned sketch. It does not have to be to scale but does need to be neat (drawn with straight edge). Work within the following constraints: Width to depth ratio of the liquid in the basin should be 1:1 Length to width ratio equals 3.5:1 Assume the inlet and outlets are on the opposite short sides of the rectangle
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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How can I find the interior dimensions (rounded to the nearest foot) of a rectangular grit tank basin to provide an average day hydraulic retention time (HRT) of 12 minutes with an average day influent flow of 3.0 MGD. Show answers on a dimensioned sketch. It does not have to be to scale but does need to be neat (drawn with straight edge). Work within the following constraints:
- Width to depth ratio of the liquid in the basin should be 1:1
- Length to width ratio equals 3.5:1
- Assume the inlet and outlets are on the opposite short sides of the rectangle
- Assume that a sharp-crested weir outlet is built into the effluent wall
- Basin should have 2.0 ft of freeboard above the water line at average flow
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