Small Commercial Design Calculator

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BOD5 Concentration Worksheet

Directions: Fill-in applicable cells in GREEN. Answers appear in BLUE.

Organic Loading (BOD5, mg/l)
 
Hydraulic Loading (gallons per day)
Kitchen Portion Seating Portion Motel, 24 Rooms Establishment 4 Establishment 5 Establishment 6 Establishment 7  
Name BOD5, lbs/d   Total, combined  
Kitchen Portion 16.81
 
Concentration 509 BOD5, mg/l  
Seating Portion 5.60
 
Organic loading 23.08 BOD5, lbs/d  
Motel, 24 Rooms 0.66
 
Hydraulic loading 5440 gpd  
Establishment 4 0.00  
Establishment 5 0.00
 
Project Info  
Establishment 6 0.00
 
 
Establishment 7 0.00
 

Treatment Unit Timer Settings

Directions: Fill-in applicable cells in GREEN. Answers appear in BLUE.

Daily design flow Treatment units Treatment unit flow parameters, maximum Pump parameters  
gpd No. gpd gph gpm gpm per TDH Pumps, no.
 
 
Timer Settings Pumps alternate?
 
Pump OFF
minutes
Pump ON 0.05 hours, or
3.1 minutes, or
188 seconds
 
Pump Info Pump cycles 96 per day total
Pump cycles 48 per day per pump
OFF time, total 19.0 hours per day
ON time, total 5.0 hours per day
Flow calculated 63 gallons per hour
 
 
1.04 gallons per minute
 
 

Food Service Establishment QACulator

Directions: Fill-in applicable cells in GREEN. Answers appear in BLUE.

Restaurant Flow
gpd, or 3785 liters
Hours of Operation
hours  
Req'd QAC Concentration
mg/l  
 
Wiping Cloth Buckets # of Buckets
 
Dump/Refill Frequency
hours  
Bucket Volume
gallons  
Daily Volume 30 gallons, or 114 liters
 
3-Compartment Sink Drain/Refill Frequency
hours  
Sink Volume
gallons  
Daily Volume 45 gallons, or 170 liters
 
QAC Effluent Concentration   15.0 mg/l
WARNING