Thermophilic co-digestion of pig manure and crude glycerol: Process performance and digestate stability.

Highlights: [•] Successful thermophilic anaerobic co-digestion between pig manure and glycerol. [•] Glycerol limiting concentration was 3%, on wet-basis. [•] Glycerol provided easy biodegradable matter which led to high biogas flow rates. [•] Larger residence time was required to use co-digestion digestate as soil fertiliser. [Copyright &y& Elsevier]