*n.d. not determined. All references are cited in the main text. Parameter Feed TH 70 TSS (g/L) 83 89 TCOD (g/L) 92 17 SCOD (g/L) 6.9 3.5 Secondary sludge from a 175ºC for 40 min (not (2005) N (g/L) 3.7 1.6 WWTP, previously clear if pre-heating al. thickened. time included). Soluble N (g/L) 0.60 0.35 et NH4-N (g/L) 0.14 2.9 Graja TP (g/L) 3.70 0.17 PO4-P (g/L) 0.12 1.496 VFA (g/L) n.d.* Parameter Feed 135ºC 190ºC TCOD (g/L) 17.7 17.3 16.4 Samples of 0.5 L in a SCOD (g/L) 5.6 5.9 7.6 1 L autoclave at 135ºC Flotation-thickened for 30 min and at TS (g/L) 14.9 14 14.5 secondary sludge from the 190ºC for 15 min TSS (g/L) 11.7 10.2 8.9 (2007) municipal WWTP of (excluding pre-heating al. TVS (g/L) 12.1 10.85 11.3 Toulouse ( France) with times, which were 35 et 17.7 g/L of TCOD, 5.6 g/L VSS (g/L) 9.40 8.45 6.90 min for reaching the of SCOD, 14.9 g/L of TS VFA (g/L) 3.65 4.20 3.65 lower temperature and and 11.7 g/L of TSS. 50 min for reaching (g/L) 2.12 1.37 1.45 Bougrier the higher). sCarb (g/L) 0.32 0.38 0.57 (g/L) 6.1 6.3 6.3 sProt (g/L) 1.5 1.6 3.3 *n.d. means not determined. All references are cited in the main text.
*n.d. not determined. All references are cited in the main text. Graja et al. (2005) Secondary sludge from a WWTP, previously thickened. 175ºC for 40 min (not clear if pre-heating time included). Parameter Feed TH TSS (g/L) TCOD (g/L) SCOD (g/L) N (g/L) Soluble N (g/L) NH4-N (g/L) TP (g/L) PO4-P (g/L) VFA (g/L) 83 92 6.9 3.7 0.60 0.14 3.70 0.12 n.d.* 70 89 17 3.5 1.6 0.35 2.9 0.17 1.496 Bougrier et al. (2007) Flotation-thickened secondary sludge from the municipal WWTP of Toulouse ( France) with 17.7 g/L of TCOD, 5.6 g/L of SCOD, 14.9 g/L of TS and 11.7 g/L of TSS. Samples of 0.5 L in a 1 L autoclave at 135ºC for 30 min and at 190ºC for 15 min (excluding pre-heating times, which were 35 min for reaching the lower temperature and 50 min for reaching the higher). Parameter Feed 135ºC 190ºC TCOD (g/L) SCOD (g/L) TS (g/L) TSS (g/L) TVS (g/L) VSS (g/L) VFA (g/L) (g/L) sCarb (g/L) (g/L) sProt (g/L) 17.7 5.6 14.9 11.7 12.1 9.40 3.65 2.12 0.32 6.1 1.5 17.3 5.9 14 10.2 10.85 8.45 4.20 1.37 0.38 6.3 1.6 16.4 7.6 14.5 8.9 11.3 6.90 3.65 1.45 0.57 6.3 3.3 *n.d. means not determined. All references are cited in the main text.
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