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14 Cards in this Set
- Front
- Back
1. The National Pretreatment Program protects POTWs and the environment from hazardous |
a. true POTW means: Publicly Owned Treatment Works
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2. Problems prevented by pretreatment are POTW operation interference, sludge |
a. true
POTW operation interference, Sludge contamination, Chemical exposure to workers Effluent pollutants. |
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3. The national program regulations require POTWs, with flow greater than 50 mgd, to |
b. false
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4. Discharge standards prohibit pollutants that create a fire hazard, have a pH >5.0, obstruct
flow, upset treatment or raise wastewater temperature <140° F. a. true b. false |
b. false
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5. A pretreatment program includes legal authority, procedures, monitoring, technical limits, |
b. false
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a. true
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7. The equitable method for recovering program costs is a user charge system.
a. true b. false |
a. true
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8. Industries that might contribute shock loads to the treatment plant include ________. |
d. all listed
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9. Non-hazardous wastes are chlorides, alkalinity, color, phosphorus and ________. |
b. iron
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10. Hazardous wastes are cyanide, ________, organics and gasoline. |
c. sulfides
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11. There are two sample types: grab sample and ________ sample. |
a. composite
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12. Operators must be alert to instructions regarding sample ________ and treatment. |
d. preservation
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13. Sampling tools and containers must be ________.
a. plastic b. clean c. sterile d. sealed |
b. clean
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14. The reaction between waste streams is known as a ________ effect. |
c. synergistic |