Question 7020 of 234 · California Wastewater Operator Exam
A chlorine residual in the effluent that suddenly drops while the dose stays the same most likely means
Exactly one answer is correct.
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Correct answer to question 7020
- D: the chlorine demand has increased typically
Explanation
More ammonia or organics, e.g. from a process upset or sidestream return, use more chlorine. Operators must adjust dose or find the cause.
More questions: Disinfection and Dechlorination
- 7001In California operator certification regulations, disinfection includes
- 7002The chemical commonly used for dechlorination is
- 7003What is chlorine demand?
- 7004Chlorine residual is
- 7005Combined chlorine residual is formed when chlorine reacts with
- 7006Compared with free chlorine, combined chlorine residual is