Neues Verfahren zur in situ-Sanierung von PAK in Boeden Schlussbericht

Aim of the work was to set up the presumptions for a new method for in situ remediation of PAH contaminated sites. This technique is based on the extraction of PAH from the soil by use of plant oils. The analytical detection of PAH in plant oils was developed and optimised. In lab scale a more or less complete removal of PAH from contaminated soils was shown. By use of plant oils PAH could be effectively extracted from sandy and clay soils. Residual amounts of PAH and plant oil could be degraded microbiologically. No negative ecotoxicological effects on plant, terrestic and aquatic tests were observed after soil extraction. The removal of PAH from plant oil is easily performed by conventional adsorption with activated carbon. The use of so treated plant oil for PAH extraction from soil gives the same results as fresh plant oil. (orig.)SIGLEAvailable from TIB Hannover: F03B332+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman