The primary public-health objective of chlorination in drinking-water treatment is to:
Correct answer: B. Inactivate pathogenic microorganisms
- A. Increase water hardness for pipe protection
- B. Inactivate pathogenic microorganisms
- C. Remove all suspended solids before filtration
- D. Convert biodegradable matter into settleable sludge
Explanation
Chlorination is a disinfection process intended to inactivate disease-causing bacteria and other microorganisms. It does not replace clarification and filtration, which remove suspended particles.
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About Environmental Engineering
Environmental engineering examines water supply, water quality, treatment processes, wastewater collection and treatment, solid waste management, air pollution and public health protection. It covers sedimentation, coagulation, filtration, disinfection, biological treatment and disposal methods, while distinguishing drinking-water treatment from sewage treatment and BOD from COD.
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