A new AD plant up and running in Sweden!

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Since the visit by the ATBEST Summer School in June, a lot has happened near Stockholm at the new Scandinavian Biogas plant in Södertör (Figure 1). The plant is now in operation and the start-up period will be soon completed.

Figure 1: Main Digester

Figure 1: Main Digester

During 2016 the plant will produce 14 million Nm3 raw biogas, treating up to 150 000 ton of organic household waste per year. The plan counts on 2 primary digesters and 1 secondary digestion unit (Figure 2).


Figure 2: Combined secondary digester and gasholder

Onsite upgrading of the raw gas by PSA-technology (active coal filter) will give about 8 million Nm3 a year of vehicle fuel that will be transported out of the plant using mobile solutions for compressed gas (Figure 3).

Figure 3 – Compressed gas container.

Figure 3 – Compressed gas container.

In Sweden biogas is seen as a great resource able to support the increasing demand of vehicles fuels for car, busses, tracks and potentially ships. As part of ongoing national and international projects on renewable energy, a few additional plants are expected to be constructed in in the near future. In this context, high is the interest on alternative biomasses and process optimisation. For instance, the Swedish Biogas Research Centre (BRC), where Scandinavian Biogas Fuels AB and Linköping University play a key role, is currently evaluating the feasibility of including forestry waste and aquatic resources (algae, fish waste and ascidians) on the biogas production chain.

Francesco Ometto, Scandinavian Biogas Fuels

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