The expansion of the existing wastewater treatment plant, which consists of designing and constructing sewage sludge drying and incineration station, gas reduction and metering station along with modernization of roads and transformer stations. The contract also covered designing and expanding the sludge thermal conversion building, road network, the new gas reduction and metering station and transformer station. Performance of the drying and incineration plant is 6,000 m3/day. The net value of the project is PLN 23 million.