What solid cannot be removed by slowing the flow?
A) Settleable solids
B) Suspended solids
C) Dissolved solids
D) Absorbed solids
Answer: B
Explanation: A) Incorrect. Settleable solids in wastewater can be removed by slowing the flow in a large basin or tank.
B) Correct. Suspended solids cannot be removed by slowing the flow.
C) Incorrect. Dissolved solids are held in suspension indefinitely.
D) Incorrect. Suspended solids cannot be removed by slowing the flow.
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