Question

What is the first step in primary sewage treatment plants?

• A. Fine screening
• B. Course screening
• C. Chlorination
• D. Primary settling tank

Answer 1

Answer:

B. Course screening

Read Explanation:

Sewage treatment is one of the efficient ways to reduce the pollution load happening on marine waters. The primary treatment first undergoes for course screening which then proceeds to other steps like fine screening and all.

Open explanation in App