Biomethane facility scaled back to boost performance

The facility processes the digester gas produced in the digestion tower by bacterial decomposition of the sewage sludge into biomethane, which is fed into the Regio Energie Solothurn grid as renewable methane. In addition to a service contract going back almost a decade, ZASE has now also commissioned the Zurich-based green tech company to convert the plant to increase its… 

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