The United States Environmental Protection Agency (EPA) recommends a minimum residual chlorine level of 0.2 ppm or mg/L and a maximum level of 4.0 ppm or mg/L.

12 янв. 2016 г. · In general, a free chlorine residual of 0.2 mg/L is considered a minimum level for the control of bacterial regrowth in the distribution system ...

Residual chlorine is the low level amount of chlorine remaining in the water after a certain period or contact time after its initial application.

This indicator measures if disinfection of the drinking water is correctly implemented at the source level or the household level.

Typically, water companies keep the level of residual disinfectant in the form of free or combined chlorine to 0.5 mg/l or less. However sometimes during ...

The optimum chlorine residual in a small, communal water supply is in the range of 0.3 to 0.5mg/l. The chlorine dose required to disinfect a supply will ...

In dilute solutions and at pH levels above 4.0, very little molecular chlorine exists in solution. The concentrations of hypochlorous acid and the hypochlorite ...

31 мая 2024 г. · For normal domestic use, residual chlorine levels at the point where the consumer collects water should be between 0.2 and 0.5 mg/l.

11 мар. 2021 г. · A residual chlorine decay model was developed to predict chlorine levels in a real drinking water distribution network.