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10 Cards in this Set
- Front
- Back
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Where do you find WWTP regulations? |
NPDES Permits, state ADEM, and the EPA. |
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Thinking filters using rock media effluent DO should be ___to ___ mg/L. |
3 to 6 mg/L |
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Thinking filters using systhetic media effluent DO should be ___to ___ mg/L. |
4 to 8 mg/L |
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Odor complaints at lift station, what do you do? |
Provide air relief valves at high points. Start a odor relief program & provide solutions. |
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C vale of a pipe is the _____ of the pipe. |
Roughnesss |
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Pneumatic device is operated by ____ |
Air |
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When circuits are operating in parallel and one goes out the other... |
Circuits remain open. |
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If the sludge concentration in the RAS is to low what is the probAble cause? |
*SVI is too low *young sludge *increase the STR |
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Dead spots in the aeration tank |
*bad diffuser *possibly a break in the diffuser |
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What is a good SVI value? |
100 to 200 |
