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) | |||||||
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| Hydraulic Loading (gallons per day) | |||||||
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| Kitchen Portion | Seating Portion | Motel, 24 Rooms | Establishment 4 | Establishment 5 | Establishment 6 | Establishment 7 | |
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| Name | BOD5, lbs/d | Total, combined | |||||
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| 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 | ||||
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| gpd | No. | gpd | gph | gpm | gpm per TDH | Pumps, no. | |
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| Timer Settings | Pumps alternate? |
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| Pump OFF |
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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 |
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gpd, or | 3785 | liters | ||
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| Hours of Operation |
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hours | |||||
| Req'd QAC Concentration |
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mg/l | |||||
| Wiping Cloth Buckets | # of Buckets |
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| Dump/Refill Frequency |
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hours | |||||
| Bucket Volume |
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gallons | |||||
| Daily Volume | 30 | gallons, or | 114 | liters | |||
| 3-Compartment Sink | Drain/Refill Frequency |
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hours | ||||
| Sink Volume |
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gallons | |||||
| Daily Volume | 45 | gallons, or | 170 | liters | |||
| QAC Effluent Concentration | 15.0 | mg/l | WARNING |
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