Multiple choice

Treatment of industrial effluents in the water can be done in three phases. Which of the following is done in the final or the tertiary phase?

  1. Screening

  2. Grinding

  3. Sedimentation

  4. Flocculation

  5. Recycling

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct answer. Tertiary treatment of water can be done by biological, chemical and physical processes. This involves recycling of wastewater.