Texas Basic Waste Water Operations Ch#04 Domestic Waste Pretreatment - Statistics

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  • 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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