# 4 F3 Existing Flocculation Basin Design Parameters at 22.5 MGD: A) # of Basins: 5 B) # of Stages per Basin: 2 c) Basin Dimensions: (30 ft. X 4 ft. X 15 ft.) D) Volume per Basin 10,800 cf (80,787 Gal) E) Total Flocculation Volume: 54,000 cf (406,920 Gal) F) Theoretical Unit Detention Time: 25.9 minutes G) Flow through Velocity (Q): 1.16 ft/min Deliverables: 1) Determine if the existing flocculation basins are sufficient to accommodate the projected future capacity. A) Current Capacity: 22.5 MGD B) Future Capacity: 34.5 MGD for 110,000 residents C) If not, determine the number of additional flocculation basins needed to accommodate the future capacity of 34.5 MGD. a) Ignore this bullet point 2) Specify the basic dimensions (length, width, water height, weir dimensions, etc.) of these additional flocculation basins. 3) Specify the design flow rate, detention time, and the flow-through velocity for each basin under the maximum future capacity of 34.5 MGD, assuming one of the basins is offline for maintenance at any given time. a) Make sure that each flocculation basin is sized to achieve 30 minutes of detention time and that they comply with all other guidelines in the 10 States Standards. Search F4 DII F5 F6 * e PrtScn Home End F7 F8 F9 F10 S % Λ &
# 4 F3 Existing Flocculation Basin Design Parameters at 22.5 MGD: A) # of Basins: 5 B) # of Stages per Basin: 2 c) Basin Dimensions: (30 ft. X 4 ft. X 15 ft.) D) Volume per Basin 10,800 cf (80,787 Gal) E) Total Flocculation Volume: 54,000 cf (406,920 Gal) F) Theoretical Unit Detention Time: 25.9 minutes G) Flow through Velocity (Q): 1.16 ft/min Deliverables: 1) Determine if the existing flocculation basins are sufficient to accommodate the projected future capacity. A) Current Capacity: 22.5 MGD B) Future Capacity: 34.5 MGD for 110,000 residents C) If not, determine the number of additional flocculation basins needed to accommodate the future capacity of 34.5 MGD. a) Ignore this bullet point 2) Specify the basic dimensions (length, width, water height, weir dimensions, etc.) of these additional flocculation basins. 3) Specify the design flow rate, detention time, and the flow-through velocity for each basin under the maximum future capacity of 34.5 MGD, assuming one of the basins is offline for maintenance at any given time. a) Make sure that each flocculation basin is sized to achieve 30 minutes of detention time and that they comply with all other guidelines in the 10 States Standards. Search F4 DII F5 F6 * e PrtScn Home End F7 F8 F9 F10 S % Λ &
Solid Waste Engineering
3rd Edition
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Worrell, William A.
Chapter8: Landfills
Section: Chapter Questions
Problem 8.9P
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Transcribed Image Text:#
4
F3
Existing Flocculation Basin Design Parameters at 22.5 MGD:
A) # of Basins: 5
B) # of Stages per Basin: 2
c) Basin Dimensions: (30 ft. X 4 ft. X 15 ft.)
D) Volume per Basin 10,800 cf (80,787 Gal)
E) Total Flocculation Volume: 54,000 cf (406,920 Gal)
F) Theoretical Unit Detention Time: 25.9 minutes
G) Flow through Velocity (Q): 1.16 ft/min
Deliverables:
1) Determine if the existing flocculation basins are sufficient to accommodate the
projected future capacity.
A) Current Capacity: 22.5 MGD
B) Future Capacity: 34.5 MGD for 110,000 residents
C) If not, determine the number of additional flocculation basins needed to
accommodate the future capacity of 34.5 MGD.
a) Ignore this bullet point
2) Specify the basic dimensions (length, width, water height, weir dimensions, etc.)
of these additional flocculation basins.
3) Specify the design flow rate, detention time, and the flow-through velocity for
each basin under the maximum future capacity of 34.5 MGD, assuming one of
the basins is offline for maintenance at any given time.
a) Make sure that each flocculation basin is sized to achieve 30 minutes of detention time
and that they comply with all other guidelines in the 10 States Standards.
Search
F4
DII
F5
F6
*
e
PrtScn
Home
End
F7
F8
F9
F10
S
%
Λ
&
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