Former Tannery Waste Disposal Site – Excavation of Intense Odour Waste

The area on which the tannery waste has been dumped, is about 18.000 m² large, the depth of the deposit was 3-4 m. Dumping took place between 1965 and 1977. Detailed investigations regarding quality of groundwater, landfill gas and waste finally led to a declaration as a hazardous site.The material investigated had a high organic load as well as remarkable chrome contents. Partly the waste was situated beneath groundwater surface. When designing the remediation process, three major problems had to be solved: high concentrations of methane, extreme odour and last but not least the suspicion of the presence of anthrax spores.