
Optimizing anaerobic digestion of organic fraction of ... ScienceDirect
From the dry LC coarse ash, metals (nails, screws etc.) were removed by manual sorting and sieving (16 mm, 8 mm, mm; Retsch AS 400, Haan, Germany). The remaining DM was ground to a particle size of 1 mm by a jaw crusher (Pulverisette 1, Fritsch, IdarOberstein, Germany) followed by an orbital mono mill (Pulverisette 6, Fritsch, Idar ...