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

What is the primary purpose of the pre-anoxic zone on the RAS stream in a Johannesburg process configuration?

To pre-aerate the return sludge before entering the anaerobic zone To denitrify the RAS so nitrate does not contaminate the anaerobic zone To raise the temperature of the RAS To remove grease from the RAS

Correct Answer:

To denitrify the RAS so nitrate does not contaminate the anaerobic zone

Access more questions from this quiz

Continue to Wastewater Treatment Operator Class III Practice Questions - ABC WPI Wastewater Treatment Operator Class III Certification Exam for more practice questions and the full quiz experience.

Access More Questions