Research Article
Anaerobic Codigestion of Sugarcane Press Mud with Food Waste: Effects on Hydrolysis Stage, Methane Yield, and Synergistic Effects
Table 2
Physicochemical characterization of substrates and inoculum.
| | Parameter | Unit | Sugarcane press mud (SPM) | Food waste (FW) | Inoculum |
| | Moisture (nSPM,FW,I : 4) | % | 70.30 ± 1.80 | 78.53 ± 6.18 | ND | | pH (nSPM,FW,I : 4) | Unit | 5.37 | 5.17 | 7.16 | | TA (nSPM,FW,I : 4) | g CaCO3 L−1 | 3.88 ± 0.93 | 4.21 ± 3.44 | 4.22 ± 0.83 | | BA (nSPM,FW,I : 4) | g CaCO3 L−1 | — | — | 2.42 ± 0.30 | | VFAs (nSPM,FW,I : 4) | g HAc L−1 | 6.45 ± 0.11 | 3.65 ± 0.23 | 1.54 ± 0.04 | | CODTotal (nSPM,FW,I : 4) | g O2 L−1 | 152.33 ± 0.94 | 80.41 ± 8.84 | ND | | CODFiltered (nSPM,FW,I : 4) | g O2 L−1 | 36.40 ± 1.41 | 22.03 ± 2.01 | ND | | TS (nSPM,FW,I : 4) | g L−1 | 132.05 ± 0.42 | 88.31 ± 6.45 | 56.98 ± 0.53 | | VS (nSPM,FW,I : 4) | g L−1 | 84.42 ± 0.53 | 81.06 ± 6.95 | 27.55 ± 0.21 | | COTa (nSPM : 2; nFW : 4) | g L−1 | 1083.86 | 481.71 ± 77.08 | ND | | TNa (nSPM : 2; nFW : 4) | g L−1 | 47.79 | 15.25 ± 0.18 | ND | | TP (nSPM : 2; nFW : 4) | g L−1 | 14.26 | 0.14 ± 0.02 | ND | | Lignin (nSPM : 2; nFW : 4) | % | 5.50 | 2.97 | ND | | Raw fibrea (nSPM : 2; nFW : 4) | % | 24.57 | 10.64 ± 0.78 | ND | | Cellulosea (nSPM : 2; nFW : 4) | % | 16.01 | 16.12 ± 10.30 | ND | | SMA (nI : 4) | (g VSS d)−1 | ND | ND | 0.008 |
|
|
Average values ± SD (standard deviation). aDry basis; n: number of samples; ND: not determined. |
