2.6 Disinfectant residual
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2.6 Disinfectant residual

 The potential adverse environmental effects of many disinfectant residuals and by-products such as those associated with the use of chlorine or its compounds are well recognized. It is, therefore, recommended that Administrations encourage the use of ozone, ultra-violet irradiation or any other disinfectant, which minimizes the adverse environmental effects, whilst pursuing the faecal coliform standard. When chlorine is used as a disinfectant the Administrations should be satisfied that the best technical means are used to keep the disinfectant residual in the effluent as low as practicable.

Parent topic: II Testing Considerations
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