UK-based clean tech firm ENER-G has switched on a biogas from wastewater project in Budapest, Hungary.
Described as one of Europe’s most ambitious biogas from wastewater schemes, the Living Danube programme is Europe’s largest environmental investment currently under implementation.
ENER-G Energia Technologia Zrt., the Hungarian subsidiary of ENER-G, has designed and built a €2.6 million renewable energy centre at the Budapest wastewater treatment plant in Csepel and installed a 4.5MWe biogas cogeneration system, together with three 2.5MW Loos boilers for additional hot water generation using natural gas or biogas.
The renewable energy centre forms part of the biological treatment complex covering 70,000m2 on a 29-hectare site at Csepel Island. Treating around 350,000m3 of wastewater every day from Buda and parts of Pest, the plant will increase the amount of biologically treated wastewater in Budapest to 95% by 2010, serving around one million people.
The plant took over two years to build and cost in the region of €0.5 billion, which was financed by the EU, the Hungarian state and Budapest municipality.
The energy centre will run at up to 80% capacity until September 2010, when it will be fully commissioned. It will supply up to 4.5MW of sustainable electricity to the system, which provides more than 50% of the plant’s total electricity consumption. The combined heat and power (CHP) unit generates up to 8.5MW of heat which is then utilised in the digester process consuming 563m3/h biogas per unit.
‘The Budapest wastewater treatment plant is a vivid example of how effective anaerobic digestion is as a commercial and environmental solution for large-scale projects such as this,’ said ENER-G’s director Balazs Marialigeti.