In this MIP-project the economic relevant washed coleseed, corn and wheat can be used on the one hand to rehabilitate sites soiled with heavy metals and on the other hand for the gain of bio-energy. The research groups study the optimalization of the metal intake by the plants and the economic relevance of fytoremediation as rehabilitation option for sites soiled with heavy metals. The industrial partners will focus on the quantification and optimalization of the recuperation of energy and heavy metals from the soiled biomass by fermentation, gassing, incineration in a burner, processing in a melter and the production of biodiesel. By cooperation between the research and industrial partners, energy balances and percentages will be compared to heavy metals in bio-energy and energy processing techniques for various energy processing techniques.