Prepare for the American Water Works Water Treatment Plant Operator Test. Study with multiple choice questions, each with hints and explanations. Get ready to excel!

Multiple Choice

Which of the following describes the role of chlorine in prechlorination?

Chlorine in prechlorination serves to disinfect and help control tastes and odors. By adding chlorine early, it inactivates a broad range of microorganisms, creating a protective residual as water moves through treatment and into the distribution system. It also oxidizes odor-causing compounds (such as sulfur compounds and certain organics) and can help limit algae and other taste-and-odor issues, improving the overall quality of the water. It’s not merely about making water taste better; it actively reduces microbial presence and tackles compounds that cause odors and flavors.

Chlorine in prechlorination serves to disinfect and help control tastes and odors. By adding chlorine early, it inactivates a broad range of microorganisms, creating a protective residual as water moves through treatment and into the distribution system. It also oxidizes odor-causing compounds (such as sulfur compounds and certain organics) and can help limit algae and other taste-and-odor issues, improving the overall quality of the water. It’s not merely about making water taste better; it actively reduces microbial presence and tackles compounds that cause odors and flavors.