Table 2 Effects of buffering compounds on the chemical compositions of pretreated WS
Additives | Concentration (g/L) | Recovery yield (%) | Removal yield (%) | ||
|---|---|---|---|---|---|
Solid | Glucan | Xylan | Lignin | ||
Na3PO4 | 1 | 59.6 | 87.6 | 84.3 | 20.2 |
5 | 61.4 | 89.1 | 83.5 | 22.0 | |
10 | 61.2 | 90.5 | 80.4 | 23.3 | |
20 | 61.9 | 92.2 | 70.6 | 19.9 | |
30 | 70.9 | 94.3 | 61.4 | 18.1 | |
Sodium humate | 1 | 58.8 | 88.6 | 72.3 | 18.6 |
5 | 59.4 | 85.5 | 70.9 | 31.7 | |
10 | 59.6 | 86.4 | 69.1 | 43.7 | |
20 | 61.2 | 87.2 | 64.5 | 41.8 | |
30 | 61.6 | 89.8 | 53.0 | 38.1 | |