Power plants produce large amounts of landfilled waste material. In thermal power plants with a solid fuel is produced as a waste product slag, ash or stabilized. Slag and ash are mixed with water and then transported by pipeline followed by silting in the pond area. Dere pond-ash mixture while is a burden on the elements of the environment especially in the vicinity. The surface layer dries effects of wind erosion is a mixture of drift, increasing dust pollution, threat to vegetation and leaky water contamination can permanently contaminate the soil and water supplies affect human health. It is necessary to find a definitive solution for the safe storage of this isolation from the environment, biological reclamation them re-integrate into the surrounding countryside and possibly use them in environmentalisation and economisation energy and combustion processes on the spot. The authors present in their article some of the outcomes of the experimentation in this area at a particular pond and its intended use for biomass production.