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Texas Basic Waste Water Operations Ch#04 Domestic Waste Pretreatment - Statistics
General Stats
- This quiz has been taken 16 times
- The average score is 16 of 19
Answer Stats
| Question | Answer | % Correct |
|---|---|---|
| ________ results in the rapid die-off of treatment organisms. | Acute toxicity | 100%
|
| While the TCEQ does not have specific pretreatment standards, ________ provides specific pretreatment standards. | EPA | 100%
|
| Food processing discharges large amounts of ________ material into the wastewater system. | organic | 100%
|
| Pesticides and herbicides used by the agricultural industry can be ________ to the treatment plant biological system. | toxic | 100%
|
| Some wastes cannot be treated in a domestic wastewater treatment plant because the waste would harm the biological process or contaminate the waste sludge. | True | 100%
|
| Sources of wastewater include domestic, I & I, food processing, agricultural operations, and industrial operations. | True | 100%
|
| Flows from domestic sources average about 100 gallons/day per person. | True | 100%
|
| Infiltration is stormwater that enters the collection system through broken pipe joints, manhole walls, and cracked pipe. | True | 100%
|
| I & I floods the collection system, creating flow 5–10 times higher than the daily average. | True | 100%
|
| Restricted discharges include those that ________. | all of the above | 80%
|
| Some pretreatment processes include ________. | all of the above | 80%
|
| Domestic waste is uniform in content. | False | 80%
|
| Some industries that may contribute a shock load to the treatment plant are refineries, paper mills, and ________. | metal platers | 80%
|
| EPA requires some industries to pretreat waste before discharge to a ________. | POTW | 80%
|
| Inflow is stormwater that enters a collection system through openings such as house wastewater line cleanouts or open manholes. | True | 80%
|
| I & I results in bypassing, plant washout, poor treatment, and permit violations. | True | 80%
|
| The most important problem prevented by monitoring or restricting industrial waste is ________. | worker exposure | 80%
|
| By weight, domestic wastewater is about 99.9% water and 1% solids. | False | 60%
|
| Federal regulations require cities to have an industrial waste control program when ________. | . flow exceeds 5 MGD and industrial waste is regulated by federal standards | 40%
|
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