WQ0002284_More Information (Received)_20020315

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1523 Kinnakeet Shores 350,000 gpd Wastewater Treatment Plant Parameters
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3/13/2002
Elevation of Plant: 11.0 ft. msl.
Weather Data:
Ambient Temperature: high.: 100 OF
low: 30 OF
Maximum Relative Humidity: 98%
Influent Parameters:
Average Daily Hydraulic Flow (ADF):
350,000 gpd
243.1 gpm
Run -Off Period:
18 hrs
Influent Peak Factor (PF):
3
Peak Hydraulic Flow (PFxADF):
729.2 gpm
BOD5
240 mg/l
Total Suspended Solids:
240 mg/1
NH3-N:
25 mg/1
NO2-N/NO3-N:
na mg/1
TKN:
40 mg/1
Phosphorus:
8 mg/1
Alkalinity (as CaCO3)
0 mg/1
pH:
6-9
Operating Parameters:
Plant Class:
Class I
MLSS concentration in aeration:
5,000 mg/1
Volatile fraction of MLSS:
0.70
MLVSS concentration in aeration:
3,500 mg/l
Mean cell residence time (MCRT):
30 days
Minimum DO concentration in aeration:
2 mg/l
Plant Water Temperature: maximum:
86 OF
minimum:
70 OF
Effluent Parameters:
BOD5
5 mg/l
Total Suspended Solids:
5 mg/1
NH3-N:
0 mg/l
NO,-N/NO3-N:
8 mg/1
TKN:
0 mg/1
Phosphorus:
n/a mg/l
Alkalinity (as CaCO3)
n/a mg/l
Dissolved Oxygen:
n/a mg/l
pH:
6-9 mg/1

1523 Kinnakeet Shores 350,000 gpd Wastewater Treatment Plant Summary
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3/15/2002
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Process:
Flow Equalization Basin Volume:
Aeration Basin Volume:
Denitrification Basin Volume:
Secondary Clarifier Volume:
Area:
Aerated Sludge Holding Volume:
Travelling Bridge Filter (influent flow):
Cell ftz , based on 2 gpm ftz:
# of cells
Loading rate:
Required:
87,500 gallons
350,000 gallons
45,714 gallons
56,000 gallons
788.1 ftz
61,300 gallons
243 gpm
122 gpm/ftz
28
1.25 gpm/ftz
Provided:
87,500 gallons
350,740 gallons
47,930 gallons
59,055 gallons
831 ftz
61,650 gallons
243 gpm
122 gpm/ftz
28
1.94 gpm/ftz

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1523 Kinnakeet Shores 350,000 gpd Wastewater Treatment Plant Aeration Calculations 3/15/2002
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Recommended Standards for Wastewater Facilities
Minimum detention time:
Maximum organic loading rate(,):
Design organic loading rate:
Minimum Air Requirement:
Max. organic loading rate*:
* Modified Ludzig-Edinger
Oxygen Requirement,):
24 hours
15 pound of BOD5/1,000 ft3/day
15.0 pound of BODS/1,000 ft3/day
2,600 ft3/pound of BOD5/day
40 pound of BODS/1,000 ft3/day
4.6 pound O?/pound NH3-N/day
Tankage Requirements
Average Daily Flow:
0.35 mgd
BOD5 reduction in flow equalization:
10`Yo
Influent BOD5 to aeration basin:
210 mg/1
Pounds BOD5/day applied to aeration:
630.5 pounds
Effluent BOD5 Requirement:
5 mg/l
Change in BOD5 (in aeration):
205 mg/1
Design MLSS concentration in aeration:
5,000 mg/l
Design Sludge age:
30 days
Change in BODVTvILSS ratio:
0.04
Influent NH3-N
25 mg/l
Pounds NH3-N/day
73.0 pounds
Required Minimum Capacity:
350,000 gallons
based on 24-hr. retention time:
based on maximum organic loading of
314,409 gallons
15.0 pounds of BOD5/1,000 ft3/day
based on change in BOD5/MLSS ratio, MLSS, & Design Sludge Age the required detention time for com
NH3-N and BOD5 reduction is:
20 hours
with arequired capcity of:
300,000 gallons
Minimum required capcity (max from above)
350,000 gallons
Aeration detention time:
24 hours
Aeration Side water depth:
10.5 ft.
Operating Depth over diffusers:
9.5 ft.
Air Requirements
Air required for BOD5 reduction:
1021.65 cfm
Air required for mixing:
1169.8 cfm
Total Air Requirement:
1169.8 cfm
Pressure Required:
4.11 psi
(0.433 psi/ft x water depth over aerators)

Kinnakeet Shores Wastewater Treatment Plant Clarifier Calculations
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Recommended Standards for Wastewater Facilities
for the Extended Aeration Activated Sludge Process
Max. Surface settling rate @ Average Daily Flow (1):
500 gallons/day/ft`
@ Peak Daily Flow (1):
1000 gallons/day/ft-
Max. solids settling rate @ Average Daily Flow (1):
50 gallons/day/ft`
@ Peak Daily Flow (l):
50 gallons/day/ft-
Weir Overflow rate @ Average Daily Flow (1):
10000 gallons/day/ft`
@ Peak Daily Flow (,):
10000 gallons/day/ft-
Sludge Return rate:
1.5
Minimum retention time @ Average daily Flow:
4 Hhours
Tankage Requirements
Average Daily Flow:
350,000 gpd
Clarifier Design Peak factor:
1.00
Peak Flow into secondary clarifier:
350,000 gpd-
Number of settling basins provided:
2
Note: areas are based on srface settling rates include influent plant flow only
Total area required by maximum surface settling rate:
@ Average Daily Flow
700.0 ft2
@ Peak Daily Flow
350.0 ft2
Design MI -SS concentration in aeration:
5,000 mg/l
Flow rate into clarifier including 150% of average daily flow
sludge return:
@ Average Daily Flow
875,000 gpd
@ Peak Daily Flow
875,000 gpd
Solids Loading:
@ Average Daily Flow
36,720.6 pounds/day
@ Peak Daily Flow
36,720.6 pounds/day
Total area required by maximum solids loading rate:
@ Average Daily Flow
734.4 ft2
@ Peak Daily Flow
734.4 ft2
Minimum required total area:
734.4 ft2
Minimum required area per basin:
Surface Loading rate:
Minimum required total volume::
Minimum required volume per basin:
Detention Time:
Minimum required weir lengths:
@ Average Daily Flow
@ Peak Daily Flow
Minimum required weir length per basin:
Actual weir length provided per basin:
Total Actual weir length provided
Air Requirements
Number of basins provided:
Air Flow required per skimmer:
Air flow per sludge lift:
Total Air required for Clarifiers:
Pressure Required:
(0.433 psi/ft x water depth over aerators)
367.2 ft2
476.6 gpd/ft2
57,681 gallons
28,840 gallons
4.0 hrs.
35.0 ft.
35.0 ft.
17.5 ft.
18.0 ft.
36.0 ft.
Total
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5.0 cfm 10 cfm
10.0 cfm 20 cfm
30.0 cfm @ 9.5 ft. of lift
4.11 psi

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DRAWN BY: DMR
PROJECT
SHT. NO.
3802
KINNAKEET SHORES
PROPOSED 350.000 GPD WWTP
SELL `-P`°""�° °'°°°
mi.
_D^'E_
DWC. No.: 152300WW1
FLOW DIAGRAM SCHEMATIC
SCALE: NONE
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