Dive into the 2025 NY Wastewater Exam – Flush Away the Competition with Confidence!

Question: 1 / 400

What is the purpose of disinfection in wastewater treatment?

To enhance chemical properties

To remove solids from water

To kill harmful microorganisms

The primary purpose of disinfection in wastewater treatment is to kill harmful microorganisms. Wastewater can contain numerous pathogens—bacteria, viruses, and protozoa—that pose significant health risks to humans and the environment. Disinfection processes, such as chlorination, ultraviolet (UV) light treatment, or ozonation, are employed to ensure that these microorganisms are effectively inactivated or eliminated before the treated water is discharged into the environment or reused.

Killing harmful microorganisms is crucial because untreated or inadequately treated wastewater can lead to the spread of diseases, contamination of water sources, and negative impacts on aquatic ecosystems. Therefore, disinfection serves as a critical final step in the treatment process to safeguard public health and protect environmental quality.

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To improve aesthetic quality

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