 Reference: 10/TX/04/17
ISBN: 1 84057 562 X
Published Date: 24/06/2010 The National Demonstration Programme(NDP) has been established to further an understanding of how current and advanced treatment processes used at wastewater treatment works affect the concentration of certain endocrine disrupting chemicals (EDC). This project has undertaken the co-ordination of the NDP investigations, the establishment of quality control procedures for data collection and the interpretation and reporting of the results obtained. The study has shown that, where adequate receiving water dilution is available, EDC removal by conventional nitrifying treatment processes is sufficient to meet tentative predicted no-effect concentrations for the substances of concern. Where adequate dilution is not available, more advanced tratment may be required but this would result in significant additional cost and increased greenhouse gas emissions. Of the three advanced treatment processes investigated (oxidation using ozone or chlorine dioxide, or adsorption using granular activated carbon), the most cost effective was found to be ozone at a dose of 1 mg/l. |
