Sewage sludge ashes in clay bricks

This research project is dealing with the mineralogical investigation (total chemical and phase composition) of clay bricks containing different amounts of sewage sludge ash of different composition and origin.

The motivation is to gather information about the fixation of hazardous trace elements within the brick material.

Important for the usage of building material containing certain amounts of recycled material is the reliable fixation of environmentally relevant elements that could be harmful to the public. Therefore strict national (e.g. the german LAGA) and international regulations must be fulfilled.

The employed techniques are: ICP-MS, XRF, XRD and electron probe microanalysis (EPMA).


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