Batch anaerobic co-digestion of Kimchi factory waste silage and swine manure under mesophilic conditions

► Kimchi factory waste silage (KFWS) was prepared by mixing Chinese cabbage (CC) and rice bran (RB). ► The KFWS produced significantly higher (p < 0.01) biogas and methane than CC. ► The biogas and methane yield was higher using a mixture of KFWS and swine manure (SM) than SM alone. ► The volatile solids (VS) removal was higher using a mixture of KFWS and SM than SM alone. ► Co-digestion of KFWS with SM could be promising to improve biogas production from SM digesters.