100 Years of Biological Wastewater Treatment Practice: A ...
Wastewater Treatment Practice
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Transcript of Wastewater Treatment Practice
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Wastewater Treatment Practice
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1.
• Name the 3 steps of the wastewater treatment plan.
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2.
• What is the purpose of the primary treatment step?
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3.
• What is the purpose of the secondary step?
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4.
• What is the purpose of the advanced treatment step?
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5.
• Which step is this? What is the name?
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6.
• Which step is this? What is the name?
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7.
• Which step is this? What is the name?
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8.
• What is the path of wastewater, starting from our homes?
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9.
• Why is important to not flush down toxic chemicals like drano down the toilet?
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10.
• What are the 4 tests that a wastewater treatment plant does on the water at various steps of he process?
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11.
• Explain what the pH test is used for
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12.
• The pH scale goes from _____ to ______. The most acidic being the ______ numbers.
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13.
• Why is it important to maintain a wastewater pH between 6.6-8.5?
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14.
• Explain what the purpose of the ammonia test is
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15.
• What is the main source of ammonia in our wastewater?
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16.
• Name the 2 reasons that ammonia is bad
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17.
• What is the process of bacteria eating the ammonia and turning it into a nitrate called?
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18.
• Why do we need to dilute the wastewater sample by 50% before using the ammonia test?
• What do you need to do afterwards to account for the 50% dilution?
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19.
• Explain what the turbidity test is used for
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20.
• Why is turbidity bad for fish?
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21.
• What instrument do we use to measure turbidity?
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22.
• Why do we cover the colorimeter when reading the blank and sample?
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23.
• Why do we need to blank the colorimeter before using?
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24.
• Explain what the Chemical Oxygen Demand test is used for
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25.
• Explain the cause and effect of eutrophication.
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26.
• What are the measuring units of pH, ammonia levels and turbidity?
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27.
• A pH of 5 is acidic/basic?
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28.
• Does coffee increase or decrease the turbidity?
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29.
• Between the original wastewater and after primary treatment, what happened to– the pH?– The turbidity?– Ammonia level?
If changed, explain why.
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30.
• Between the primary treatment and after secondary treatment, what happened to– the pH?– The turbidity?– Ammonia level?
If changed, explain why.
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31.
• Between the secondary treatment and after advanced treatment, what happened to– the pH?– The turbidity?– Ammonia level?
If changed, explain why.
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32.
• What kind of organisms were found in the activated sludge?
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33.
• Why was it important to maintain oxygen levels during the secondary treatment?
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34.
• What is the difference between aerobic and anaerobic bacteria? What kind of bacteria are in the sludge?
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35.
• What is the purpose of Aluminum Sulfate?
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36.
• Advanced treatment involves the following 2 steps:
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37.
• What does the wastewater facility use to disinfect water? (2 options)
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38.
• How does the plant remove chlorine form the water?