Wastewater Treatment Operator Certification

1 mg/l is the same as 1 part per billion (ppb) True or False Correct Answer: False (v.1 pg 468) A SCADA system is capable of monitoring and controlling equipment from a remote location True or False Correct Answer: True (v.2 pg 627) A Discharge Monitoring Report is typically submitted to the regulatory agency on a daily basis True or False Correct Answer: False A mechanical seal is used to prevent leaks between the pump casing and shaft. True or False Correct Answer: Tr...

What is the methane content in a properly operation anaerobic digester? A) 30 to 35% by volume B) 1 to 2% by volume C) 65 to 70% by volume D) 15 to 20% by volume Correct Answer: C) 65 to 70% by volume (v.2 pg 158) What will the addition of chlorine gas do to the pH of wastewater? A) Moderately increase pH B) pH will not be affected C) Significantly increase the pH D) Decrease the pH Correct Answer: D) Decrease the pH (v.1 pg 349-350) What is the purpose of a Parshall flume? ...