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Project 3.05: Impacts of climate change on stability and environmental relevance of hydraulic engineering materials in coastal waters

Dr Thomas Ternes, BfG,
Tel. +49 (0) 261/1306-5560, ternes@bafg.de

Dr Peter Heininger, BfG,
AL G,
Tel. +49 (0) 261/1306-5307, heininger@bafg.de

Dr Lars Düster, BfG
Referat G2 – Gewässerchemie
Tel. +49 (0) 261/1306-5275, duester@bafg.de


Objectives

In the planned project, selected construction materials will be studied with regard to their effect on the mobilisability of organic and inorganic pollutants. After detailed study of the literature, inorganic and organic pollutants will be selected and the effect of their release on typical water conditions, such as pH value, redox potential, salt content etc. will be analysed. The different parameters will be varied systematically, so as to obtain reliable results on the mobilisation potential of the materials in changing conditions. Furthermore, the environmental behaviour (degradation, absorption/adsorption) of materials which are released into a water/sediment system will be explained. Finally, selective tests are to be made in order to establish whether changed parameters in the aquatic chemistry also in some cases affect the durability of construction materials. In the coastal zone, the parameters which vary most strongly are the salt content, temperature, redox potential and the oxygen content of the water.

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