Wastewater Treatment Operator Class I Practice Questions - ABC WPI Wastewater Treatment Operator Class I Certification Exam

What is the primary purpose of a bar screen at the headworks of a wastewater treatment plant?

To disinfect raw wastewater before it enters the plant To remove large debris such as rags, sticks, and plastics that could damage pumps and downstream equipment To remove dissolved organic matter from the influent To raise the dissolved oxygen of incoming wastewater

Correct Answer:

To remove large debris such as rags, sticks, and plastics that could damage pumps and downstream equipment

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