Anaerobic digestion of acidified slurry fractions derived from different solid-liquid separation methods

► B0 acidified slurry fractions from different separation methods were evaluated. ► Batch assay processing raw and liquid fractions of acidified manure showed inhibition. ► A larger screen size gave higher B0 of solid fractions acidified sow manure. ► A lower plate tension gave a lower B0 of solid fractions acidified sow manure. ► No effect of acidification on B0 of solid fractions acidified dairy cow manure.