5.7 Disinfectant residual
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Statutory Documents - IMO Publications and Documents - Resolutions - Marine Environment Protection Committee - Resolution MEPC.227(64) – 2012 Guidelines on Implementation of Effluent Standards and Performance Tests for Sewage Treatment Plants – (Adopted on 5 October 2012) - Annex - 2012 Guidelines on Implementation of Effluent Standards and Performance Tests for Sewage Treatment Plants - 5 Testing Considerations - 5.7 Disinfectant residual

5.7 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, ultraviolet irradiation or any other disinfectants which minimize adverse environmental effects, whilst pursuing the thermotolerant coliform standard. When chlorine is used as a disinfectant, the Administration should be satisfied that the best technical practice is used to keep the disinfectant residual in the effluent below 0.5 mg/l.

Parent topic: 5 Testing Considerations
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