SEWAGE SLUDGE AS RENEWABLE ENERGY FUEL

The significant technological progress in municipal sewage-treatment plant and surface water protection cause the increasing of sewage sludge. The sewage sludge are recently stored on the waste dump. Taking into account the obligations of Poland under Treaty of Accession concerning waste management order, the most important problem is the waste recovery and waste disposal. One of waste disposal method is the thermal utilization. The waste storage should be limited, because of obligations of the municipal waste reduction. The increasing charges of waste storage and limited possibilities of waste disposal in agriculture (caused by heavy metals) are the factors, which suggest searching new technologies. The thermal utilization is an energy production method as well as a chemical waste utilization.