treatment and the sludge resulting from treatment, separately produce biogas. Through the anaerobic digestion of the sauerkraut juices or through digestion of the sludge and grease, bacterial populations ... Centrifugation, Wastewater, Sludge treatment, Sludge digestion, Activated sludge, Anaerobic, Sludge dewatering, Sludge drying, Biogas, Methane fermentation ... Centrifugation Wastewater Sludge treatment Sludge digestion Activated sludge Anaerobic Sludge dewatering Sludge drying Biogas Methane fermentation...