Question detail
Which process is typically used after aerobic biological treatment to further purify effluent?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Using the Earth's resources and obtaining potable water
Question
- A. Filtration
- B. Chlorination
- C. Sedimentation
- D. Desalination
Answer
The correct option is Chlorination. This answer is correct because it matches the approved learning objective to describe aerobic biological treatment of effluent in the subtopic Waste water treatment.
Explanation
The correct option is Chlorination. Chlorination is correct because it directly supports the approved learning objective to describe aerobic biological treatment of effluent. This belongs to the subtopic Waste water treatment within Using the Earth's resources and obtaining potable water, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Waste water treatment.
Common mistake
Confusing Aerobic and Anaerobic Treatment
Students often confuse aerobic biological treatment with anaerobic digestion, thinking both processes occur in the absence of oxygen.
Remember that aerobic treatment requires oxygen, while anaerobic digestion occurs without oxygen. Focus on the role of oxygen in the breakdown of organic matter.
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