One of these alternative sources is sewage sludge.
This unpleasant, smelly residue of waste-water treatment is now becoming increasingly important because biogas and energy can be obtained from sewage sludge.
Water-treatment and waste-water treatment plants as well as the pumping stations and various other plants and facilities of Berliner Wasserbetriebe consume approximately as much energy as the city of Hildesheim with its approximately 100,000 residents every year.
www.bwb.deZu diesen Energiequellen gehört auch der Klärschlamm.
Dieser unansehnliche, übel riechende Reststoff aus der Abwasserbehandlung wird mittlerweile immer bedeutender, denn aus Klärschlamm lassen sich Biogas und Energie gewinnen.
Die Wasser-, Klär- und Pumpwerke sowie zahlreiche weitere Anlagen der Berliner Wasserbetriebe benötigen jährlich etwa so viel Energie wie die Stadt Wiesbaden mit ihren 280.000 Einwohnern.
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