Question 2023 of 223 · California Water Treatment Operator Exam

Which gas is commonly fed as a primary disinfectant in water treatment, and is stored as a liquid under pressure in cylinders?

Exactly one answer is correct.

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Correct answer to question 2023

  • A: Chlorine

Explanation

Chlorine gas is shipped as a liquid in cylinders and is a toxic, corrosive gas when released. Many plants have changed to sodium hypochlorite for safety.

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