A technology to effectively utilize and recycle sewage sludge.

The Hungarian company developed and launched a technology for treating communal sewage sludge that is economical in case of small scale production too. This technology is a self-supporting technology for drying and pelleting sewage sludge without the external need for fossil fuel or any other additional material. Consequently, the most reasonable utilization of pellets is not retail utilization, but meeting the heating and hot water needs of properties owned or operated by municipalities that operate wastewater treatment plants. The pellets generated have a heating value equivalent to that of brown coal heating. It uses a negligible external energy input by reusing 30-50% of the generated pellets in the process to run the drying unit. The technology fits into the ‘energy from waste' policy of the European Union. It enables wastewater plants to meet the strict EU environmental regulations and at the same time, reduce their sewage sludge treatment costs by 50-75%. Currently, the most preferred and known energetic utilization of sewage sludge is biogas production, which system requires a long implementation time and more millions of Euros investment. That system can improve the energy balance of the wastewater plant, but the residual sludge of the digesting process still needs to be treated further, at a significant cost. The company is offering the system for potential partners interested in licensing.