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Bioresources and Bioprocessing
Fig. 4 | Bioresources and Bioprocessing

Fig. 4

From: Potential use of Ulva intestinalis-derived biochar adsorbing phosphate ions in the cultivation of winter wheat Tristicum aestivum

Fig. 4

Presentation of the surface of tested sorbents using SEM (scale 50 μm): (a) seaweed Ulva intestinalis, (b) biochar obtained at 700 °C, (c) biochar obtained at 700 °C enriched with phosphate ions, (d) modified Ulva intestinalis, (e) modified biochar produced at 700 °C, (f) modified biochar obtained at 700 °C enriched with phosphate ions

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