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Table 2 Methods for substrate pre-treatment and anaerobic digestion

From: Biogas and nutrients from blackwater, lawn cuttings and grease trap residues—experiments for Hamburg’s Jenfelder Au district

Technique for substrate pre-treatment  
 Maceration of lawn cuttings Knife mill GRINDOMIX GM 300 by Retsch, Germany
 Preparation of lawn juice Screw press-type CV by Anhydro, Germanya, slab press LA 180 by Bürkle, Germanyb
 Storage of lawn cuttings Vacuum bags and store in a cooling chamber (8 °C) until utilization
Technique for anaerobic digestion  
 Batch tests for biogas potential VDI 4630 [35]
 Semi-continuously fed biogas experiments Continuous stirred tank reactors (CSTR) with a volume of 10 l, mesophilic conditions about 37 °C ("Semi-continuous biogas production")
  1. aUsed at the Leibniz Institute for Agricultural Engineering Potsdam-Bornim (ATB), Germany
  2. bUsed at the Thünen Institute Hamburg-Bergedorf, Germany