Disinfection of Storm Sewage Discharges
The review evaluated the evidence for the satisfactory performance of storm sewage disinfection techniques as an alternative to increased storm sewage storage and subsequent return to full treatment. A review of the effectiveness of a range of alternative disinfection technologies, including pre-treatment requirements, has identified UV irradiation technologies and chlorination as the technologies with the greatest potential. Interpretation of a storm sewage trial (United Utilities) and a microwave UV irradiation trial (Yorkshire Water) were included in the review.
A specification for conducting a field-scale practical demonstration of the efficacy of candidate pre-treatment/ disinfection technologies has been prepared following discussion with manufacturers.
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