Treating Waste Water

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4 Terms

1
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What is waste water?

Waste water is produced when we go to the toilet; also from industrial processes.

2
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Why must waste water be treated?

Harmful chemicals and organic matter must be removed before it is released back into the environment

3
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What are the steps in treating waste water?

  1. Screening/grit removal

  2. Sedimentation

  3. Liquid effluent: aerobic treatment

  4. Sludge (solid): treated by anaerobic digestion

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