Practice Contaminant Interaction With Rainwater (4.2) - Introduction - part A

Practice: Contaminant Interaction with Rainwater

Lesson 4.2Introduction - part A

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8 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does the term 'sludge' refer to?
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Think about what is left after separating solids from water in treatment.
Question 2.
Define 'aqueous phase.'
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It's the liquid part of a solution.
3Question 3.
What is the purpose of performing mass balance in this context?
- To estimate the volume of sludge
- To trace contaminant distribution
- To measure rainfall
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Think of how we account for materials in a system.
4Question 4.
True or False: Rainwater can contain contaminants that affect the mass balance.
- True
- False
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Consider what happens in polluted areas.
Question 5.
Given that a tank contains 600,000 kg of sludge with 250 mg of contaminant A per kg, if 800 m³ of rainwater is added, calculate how the concentration of A changes after mixing.
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Set up your mass balance based on the initial and final states.
Question 6.
If the rainwater is found to contain 5 mg/kg of contaminant B, how would you adjust your calculations for total contaminant contributions in the aqueous phase?
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Remember that all sources and outputs need to be accounted for.

4 more questions in this section. Enroll free to practise them all.