Research Article
A Study on the Valorization of Rice Straw into Different Value-Added Products and Biofuels
Table 5
Mineral composition of the collected lignocellulosic wastes.
| | | Macronutrients | Micronutrients | Undesired heavy metals | | P | K | Ca | Mg | Fe | Zn | Mn | Cu | Ni | Cd | Cr | Pb | As | Hg | Co | | mg/kg | mg/kg | mg/kg |
| | Rice straw | 1.08 ± 0.02 | 0.28 ± 0.02 | 0.41 ± 0.02 | 0.50 ± 0.02 | 320.3 ± 0.5 | 72.3 ± 0.5 | 327 ± 0.5 | 52.3 ± 0.5 | 38.4 ± 0.5 | 1.10 ± 0.2 | 0.35 ± 0.05 | 1.64 ± 0.05 | 0.0002 ± 0.0 | 0.001 ± 0.0 | 36.2 ± 0.05 | | Egyptian organic fertilizer standard 8079/2017 | — | — | — | — | — | Max 300 | — | Max 100 | Max 180 | Max 5 | Max 300 | Max 300 | — | Max 4 | Max 100 |
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