Dry chlorine gas application to sewage is appropriate under which condition?

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Multiple Choice

Dry chlorine gas application to sewage is appropriate under which condition?

Chlorine disinfection works by dissolving chlorine in the water to form hypochlorous acid, the active disinfectant. The method you choose depends on whether you have a water supply capable of dissolving and delivering chlorine. Dry chlorine gas is used only when there isn’t a water under pressure available to dissolve chlorine and carry it into the sewage. In that situation, you introduce the chlorine gas directly, and the water already present in the sewage dissolves it for disinfection. Other factors like turbidity, pH, or chlorine demand affect how much chlorine is needed and how effective it will be, but they don’t determine whether dry chlorine gas is appropriate. Safety and proper equipment are essential whenever handling chlorine gas.

Chlorine disinfection works by dissolving chlorine in the water to form hypochlorous acid, the active disinfectant. The method you choose depends on whether you have a water supply capable of dissolving and delivering chlorine. Dry chlorine gas is used only when there isn’t a water under pressure available to dissolve chlorine and carry it into the sewage. In that situation, you introduce the chlorine gas directly, and the water already present in the sewage dissolves it for disinfection.

Other factors like turbidity, pH, or chlorine demand affect how much chlorine is needed and how effective it will be, but they don’t determine whether dry chlorine gas is appropriate. Safety and proper equipment are essential whenever handling chlorine gas.

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