Monitoren in-situ saneringsprocessen Hollandsche IJssel

The options for on-site decontamination have been inventoried on the basis of various studies carried out on a natural bank of the Hollandsche IJssel. In addition to standard studies of the beds of water courses, this research consisted of recording flora and fauna, an exhaustive risk analysis, availability research relating to PAC and heavy metals and determination of the potential for natural degradation. The research revealed that reconstruction of the site in combination with on-site decontamination is an option that will allow the preservation of the existing flora, fauna and landscape. On-site decontamination measures may consist of stimulating biological degradation, promoting sedimentation processes in such a way that the contaminated layers of sediment are covered (natural capping) or the partial removal of the existing sludge and its replacement with clean sedimen