A corrosive liquid must pass through ________ before entering the sewer.

A corrosive liquid must pass through ________ before entering the sewer.

• A. Dilution/Neutralization
• B. Filtration
• C. Chlorination
• D. Sedimentation

Answer: (A)

The main idea here is pretreating corrosive waste so it’s safe for the sewer system and treatment processes. A corrosive liquid should be diluted and neutralized before entering the sewer to bring its pH closer to neutral and reduce its corrosive power. This protects pipes, pumps, and downstream treatment stages and helps meet safe-discharge requirements. Filtration, chlorination, and sedimentation don’t address corrosivity. Filtration removes solids but not the chemical properties that cause corrosion. Chlorination disinfects but doesn’t neutralize corrosive chemicals. Sedimentation separates solids by settling but leaves the chemical nature of the liquid unchanged.

The main idea here is pretreating corrosive waste so it’s safe for the sewer system and treatment processes. A corrosive liquid should be diluted and neutralized before entering the sewer to bring its pH closer to neutral and reduce its corrosive power. This protects pipes, pumps, and downstream treatment stages and helps meet safe-discharge requirements.

Filtration, chlorination, and sedimentation don’t address corrosivity. Filtration removes solids but not the chemical properties that cause corrosion. Chlorination disinfects but doesn’t neutralize corrosive chemicals. Sedimentation separates solids by settling but leaves the chemical nature of the liquid unchanged.