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Q » What is chlorination contact time and how is it calculated?

John

03 Nov, 2025

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A » Chlorination contact time refers to the period during which chlorine is in contact with water, allowing for effective disinfection. It is calculated using the formula CT = C × T, where C is the concentration of chlorine in mg/L and T is the contact time in minutes. Ensuring adequate contact time is crucial for the inactivation of pathogens and achieving safe water quality standards.

Michael

03 Nov, 2025

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A »Chlorination contact time, or CT, is the time water is in contact with chlorine to inactivate pathogens. It's calculated by multiplying the chlorine concentration (in mg/L) by the contact time (in minutes). CT = Chlorine concentration x Contact time. This ensures effective disinfection in water treatment processes.

David

03 Nov, 2025

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