In-situ and on-site remediation methods often represent an efficient alternative to classical ex-situ measures in the unsaturated subsurface and groundwater. These methods can be divided into physical, chemical and biological processes, depending on the mechanism involved. Examples include chemical oxidation of pollutants by the addition of oxidants and stimulation of biodegradation processes by the addition of nutrients. Current developments also involve the use of planted soil filters (constructed wetlands) as an on-site method for the purification of contaminated groundwater. The project is aimed at investigating a secured site with a view to performing field trials for in-situ (biological, chemical) remediation of the unsaturated subsurface and remediation of the contaminated groundwater using planted soil filters. The following steps are required:
Scientific support in site investigation and development of a “site model” including a three-dimensional damage model.Development of a site-specific cost-benefit analysis for remediation measures based on the measured data.Preparation of design drawings for field trials for in-situ remediation of the unsaturated subsurface and remediation of the contaminated groundwater using planted soil filters.