Neue Verfahren und Methoden zur Sanierung von Altlasten - am Beispiel der Deponie Georgswerder, Hamburg. T. 6: Entnahmesysteme fuer schadstoffbelastete Fluessigkeiten aus Deponien. Bd. 2 Bemessungsverfahren. Schlussbericht

Contaminent-bearing leachates are frequently the cause of contamination of surface water and groundwater in the vicinity of waste sites. The remediation of such a contaminated site by means of encapsulation can be accelerated effectively by removal of the contaminated liquids from the disposal unit. The leachates usually consist preponderately of contaminant-bearing water. But they can contain also a considerable part of mineral oil, which is enriched with toxic organic substances. During the removal of non-miscible liquids water and oil, multiphase flows occur in the disposal unit which demand special dimensioning procedures for the removal systems. Beyond this, for reasons affecting work safety and environmental protection, special constructional requirements have to be applied to the removal system. Special dimensioning procedures for the removal systems were created and devices were developed for the removal of contaminant-bearing liquids. These devices were proved within a pilot test for the removal of oil out of former basins of liquid waste on the Georgswerder waste site in Hamburg. (orig.)Available from TIB Hannover: QN 82(6,2)+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany); Umweltbehoerde, Hamburg (Germany). Amt fuer AltlastensanierungDEGerman