Weiterentwicklung und Optimierung einfacher Oxidationsverfahren zur Aufbereitung organisch belasteter Grund- und Trinkwaesser in den NBL. Teilprojekt A-C Abschlussbericht

Abstract

At present the use of Advanced Oxidation Processes (AOP) in drinking-water treatment plants is largely investigated. An important point of interest is the metabolism of the degraded substances, to avoid the formation of toxic byproducts. Three variants of the AOP-processes were tested in batchreactors, flow-through-reactors and in a pilot plant (UV/H2O2). Batchreactors were used to determine various reaction parameters. Flow-through reactors were used for testing UV-lamps and for the comparison of the single AOPs. The pilot-plant for the UV/H2O2-process was optimised at a contaminated well. Metabolites were analysed by HPLC, CG/MS and capillary electrophoresis. Detailed degradation pathways of atrazine and isoproturone were obtained. The comparison of the processes showed as a result of the project that each one yields a sufficient degradation of the micropollutant. For the ozone/H2O2-variant the lowest amount of energie was needed. The examinations proved the reliability of AOPs for purification of polluted ground-, drinking-, and surfacewater from micropollutants. As-up-scaling of the ozone/H2O2-process for waterworks should be possible. (orig.)Available from TIB Hannover: F98B1304+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman