2012|13 Annual Report Fraunhofer IGB

109 Dipl.-Ing. Christiane Chaumette Phone +49 711 970-4131 christiane.chaumette@ igb.fraunhofer.de Dipl.-Ing. Siegfried Egner Phone +49 711 970-3643 siegfried.egner@igb.fraunhofer.de Funding We would like to thank the European Union for funding the pro- ject “CleanLeachate” in the Seventh Framework Programme (RP7/2007-2013), grant agreement no. 262335. Project partners Eilenburger Elektrolyse- und Umwelttechnik GmbH, Eilenburg | MAGNETO special anodes B. V., Schiedam, Netherlands | ASIO spol. s r. o., Brno, Czech Republic | Initial Projects Limited, Wol- verhampton, UK | Centre de Recerca i Innovació de Catalunya, S. A., Barcelona, Spain Further information www.cleanleachate.eu to the degradation of organic substances and ammonium by anodic oxidation. Stainless steel cathodes with varying geom- etries were tested to investigate the dehalogenation of the AOX. Pilot plant – test operation at a landﬁll site A pilot plant with a throughput of 20 L/h was designed in ac- cordance with the laboratory ﬁndings, and built by our project partner EUT. Continuous operation tests were carried out by our project partner ASIO at a landﬁll site in the Czech Repub- lic. The process was successfully optimized and able to reduce the COD concentration in the landﬁll leachate to below 200 mg/L and the total nitrogen concentration to below 70 mg/L. This means compliance to the legal requirements for COD and overall nitrogen concentration in the treated landﬁll leachate. The energy requirement for the removal of contaminants was 43 kWh to degrade one kilogram of COD and 22 kWh to eliminate one kilogram of ammonium. Outlook An automated and transportable prototype plant is now avail- able for further development in view of market introduction. It could be demonstrated that the electrochemical treatment of landﬁll leachate meets pollutant discharge limits. The tech- nology will now be further tested and demonstrated in a vari- ety of industrial wastewaters. 1 Activated sludge tank of a plant for the treatment of landﬁll leachate. 2 Electrolytic cell on a laboratory scale. 3 Leachate samples during the electrochemical treatment. 4 Schematic view of the prototype plant. 3 4 Contacts

2012|13 Annual Report Fraunhofer IGB

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