Parameter | Liquid feedstock before and after mixing | Raw solid feedstock | ||||||
---|---|---|---|---|---|---|---|---|
R1 (100%AWW) | R2 (75%AWW:25%FVW) | R3 (50%AWW:50%FVW) | R4 (25%AWW:75%FVW) | R5 (100%FVW) | Inoculum | Parameter | FVSW | |
TS (%) | .86 ± .04 | 1.01 ± .08 | 1.44 ± .17 | 1.71 ± .05 | 1.87 ± .18 | 1.86 ± .048 | TS (%) | 91.13 ± .23 |
VS (%) | 78.38 ± 1.13 | 70.68 ± 1.52 | 68.15 ± .91 | 62.26 ± 1.63 | 59.25 ± 3.15 | 69.39 ± 1.07 | VS (%) | 80.40 ± .08 |
FS (%) | 21.62 ± 1.13 | 29.32 ± 1.52 | 31.85 ± .91 | 37.74 ± 1.63 | 40.75 ± 3.15 | 30.61 ± 1.07 | Ash (%) | 19.60 ± .08 |
pH | 6.33 ± .00 | 6.50 ± .00 | 6.61 ± .00 | 6.85 ± .00 | 6.39 ± .00 | 7.74 ± .00 | MC (%) | 8.87 ± .23 |
ORP (mv) | 41.00 ± .00 | 32.00 ± .00 | 25.00 ± .00 | 11.00 ± .00 | 37.00 ± .00 | −47.00 ± .00 | ASL (%) | 1.75 ± .22 |
EC (mS) | 8.30 ± .00 | 8.75 ± .00 | 8.17 ± .00 | 7.61 ± .00 | 7.28 ± .00 | 4.89 ± .00 | AIL (g/l) | .02 ± .00 |
TN (mg/l) | 912.50 ± 17.68 | 825.00 ± .00 | 662.50 ± 17.68 | 625 ± 35.36 | 612.50 ± 17.68 | − | Fat (%) | 1.65 ± .29 |
TP (mg/l) | 125.25 ± .35 | 310.00 ± .00 | 391.67 ± 11.79 | 446.67 ± 70.71 | 651.67 ± 2.35 | – | TC (ppm) | 863.99 ± 44.89 |
COD (mg/l) | 13,510.00 ± .00 | 14,530.00 ± .00 | 14,950.00 ± .00 | 15,160 ± .00 | 17,800.00 ± .00 | – | Protein (%) | 13.62 ± .76 |
C:N ratio (COD/TN) | 14.81 ± .28 | 17.61 ± .00 | 22.58 ± .60 | 24.30 ± 1.38 | 29.08 ± .84 | – | Extractives (%) | 12.20 ± 3.00 |
FOG (g/l)* | 1.825 | – | – | – | – | – | Hemi-cellulose (%) | 0.64 ± .00 |
– | – | – | – | – | – | – | C (%) | 32.09 ± .39 |
– | – | – | – | – | – | – | H (%) | 2.18 ± .12 |
– | – | – | – | – | – | – | N (%) | 1.09 ± .05 |
C:N ratio | 29.44 ± .64 |