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List and describe the typical steps in municipal wastewater treatment. List the objectives of each step

List and describe the typical steps in municipal wastewater treatment. List the objectives of each step

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Answer #1

There are 9 steps of wastewater treatment. These are-

1)- collection-collect the wastewater from local river , lake etc.

2)-screening - screen out the large items from water. Large items trapped on screen.

3)- chemical addition- chemicals are added to help the particles floating in water clumps together form a heavier.

4)- coagulation- coagulant is added to provide quick mixing.

5)- sedimentation- the large particles are settled out in bottom and then removed these particles.

6)- filtration- clarify water enter into filter from top. Smaller particles are removed.

7)- disinfection- to remove bacteria and virus disinfectant are added. Most common disinfectant is chlorination.

8)- storage- after disinfection process water is stored.

9)- distribution- the stored water is pushed through underground pipelines.

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