| 1. |
Aerobic Wastewater treatment may be a good option if: |
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The Soil Quality is not appropriate for a septic system |
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There is high groundwater or shallow bedrock |
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There is not enough land available for a septic system |
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All of the above |
| 2. |
Aerobic treatment system regulations ___________ from state to state. |
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Vary |
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Are the same |
| 3. |
Aerobic treatment systems are ___________ expensive to operate than a septic system |
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Less |
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More |
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Equally |
| 4. |
Aerobic Systems treat wastewater using natural processes that require |
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Carbon Dioxide |
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Water |
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Oxygen |
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Nitrogen |
| 5. |
Inside the aeration chamber |
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The wastewater undergoes the first level of treatment |
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The bacteria cleans up the wastewater |
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Air is mixed with the wastewater |
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Suspended solids are removed |
| 6. |
The amount of dissolved oxygen contained in wastewater from an aerobic unit the growth of microorganisms that treat the wastewater in the soil. |
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Slow down |
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Increase |
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Don’t affect |
| 7. |
The size of most aerobic units range from _____________ per day. |
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100-300 |
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300-1500 |
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1500-3000 |
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3000-5000 |
| 8. |
Higher temperature tend to slow down most biological processes and lower temperatures tend to speed them up |
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True |
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False |
| 9. |
All of the following affect the cost of the aerobic treatment system, except: |
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Cost of electricity |
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Cost of disinfection |
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Unit price |
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Local temperatures |
| 10. |
If the unit carries NSF approval, it includes the first ______ years of service visits with the purchase price. |
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2 |
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3 |
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6 |
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10 |
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