Raw shredded FVWs were analyzed more than ten times, and the initial total solids (TS) concentration
and volatile solids (VS) were approximately 100 g/kg and 87 g/kg, respectively. The total COD (tCOD), soluble COD (sCOD) and NH4+ -N were 137.1, 79.3 and 0.07 g/kg, respectively, and the pH was 4.5–4.8.