HZI to supply digesters for first dry anaerobic digestion plant in Greece
Hitachi Zosen Inova (HZI), a Switzerland-based energy from waste technology provider has announced that it is to supply a dry anaerobic digestion plant which is to be built in the Epirus Region in Greece. HZI has also concluded a service and support contract with Terna Energy S.A, for the first-of-its-kind plant in Greece.
The Epirus Region is to be the location of Greece’s first dry anaerobic digestion plant, which will in future handle 105 000 tonnes of municipal solid waste (MSW) per annum. The organic fraction will be removed in the sorting line of the new Mechanical-Biological Treatment (MBT) plant, and then processed in the anaerobic digestion system.
The core module of this system, comprising of two PF1500 Kompogas digesters, will be delivered by HZI that has also concluded a service and support contract with its Greek partner Terna Energy S.A, a vertically integrated renewable energy project developer, financier, and operator.
Co-financed by the European Union (EU), Terna Energy is to build the EUR 52.6 million project as part of a public-private partnership (PPP) with the Epirus Region and has a 25-year operation and maintenance (O&M) agreement for the plant.
Building modern waste management capacity
The EU Landfill Directive obliges member states to avoid landfilling waste wherever possible and to give preference to an alternative. Member states are also set recycling targets, and face having to pay penalties if these are not adequately met.
For Greece as a founding member of the EU, this project is a groundbreaking step with regard to dealing with municipal waste in the future. Waste and recycling management is in an early phase in Greece, and a large amount of the country’s municipal solid waste is sent to landfill.
The region has enormous potential for biological and thermal energy-from-waste (EfW) plants. It is particularly significant for HZI to be part of this project, which is the first of its kind and thus of utmost importance, said Franz-Josef Mengede, CEO of HZI.
Electricity and soil improvement
According to Emmanuel Maragoudakis, CEO at Terna Energy, the decisive factors in ultimately selecting HZI’s Kompogas technology were down to the numerous reference plants worldwide coupled with quality aspects.
When it came to selecting the supplier, our focus was on the technology, and we were impressed from the outset by the robustness and first-class quality Kompogas offers, said Maragoudakis.
The two steel digesters will process 38 700 tonnes of pre-sorted organic waste under anaerobic conditions and produce biogas. The annual yield of around 5.4 million Nm3 of biogas will be used in a genset to supply 11.5 GWh of electricity to the grid and will be sufficient to supply 3 000 households in the region.
At the end of the digestion process, the digestate will be mixed with other organic substrates and composted for 6 weeks. The resulting compost will be used to restore old quarries and mines.