Question

2. What is the purpose of preliminary treatment of wastewater?​

Answer 1

Answer:

The objective of preliminary treatment is the removal of coarse solids and other large materials often found in raw wastewater. Removal of these materials is necessary to enhance the operation and maintenance of subsequent treatment units.

Explanation:

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Answer 2

Answer:

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The objective of preliminary treatment is the removal of coarse solids and other large materials often found in raw wastewater. Removal of these materials is necessary to enhance the operation and maintenance of subsequent treatment units.