| Title |
Eco-friendly reuse of agricultural wastes to produce biocomposites with high potential in water treatment and fertilizers |
| ID_Doc |
13693 |
| Authors |
Pérez, S; Giraldo, S; Forgionny, A; Flórez, E; Acelas, N |
| Title |
Eco-friendly reuse of agricultural wastes to produce biocomposites with high potential in water treatment and fertilizers |
| Year |
2024 |
| Published |
Biomass Conversion And Biorefinery, 14, 7 |
| DOI |
10.1007/s13399-022-02948-6 |
| Abstract |
Large quantities of orange peel wastes are generated and require adequate management and disposal into the environment. Agricultural waste valorization is a strong research topic, due to the increasing need for achieving a sustainable environment. Especially, the development of adsorbent materials applied to wastewater treatment for efficient phosphorus recovery and reuse systems is a challenge of current interest in research. In this work, a novel low-cost biocomposite was obtained by calcination of orange peel (OP) and eggshell (ES), which is highly effective for P recovery from synthetic aqueous solutions and domestic wastewater. After calcination at 700 degrees C, the material with a ratio by weight of OP/ES = 1 showed a high adsorption capacity (Q(max) = 315.25 mg P/g) compared to other materials previously reported. The XRD and FTIR characterization results of the materials after the P removal showed that brushite (Ca(HPO4)center dot 2H(2)O) is the main calcium phase obtained at pH 6, while apatite (Ca-5(PO4)(3)OH) is favored at a pH higher than 8. Moreover, the ESOP adsorbents showed a high P adsorption from wastewater, with 98.6% of P recovery as apatite. Additionally, Ca-5(PO4)(3)OH and Ca(HPO4)center dot 2H(2)O phases exhibited a high solubility of P in 2% formic acid releasing up to 97.50 and 194.22 mg P/g. The results of this work indicate that calcined ESOP is a promising material for P recovery from aqueous solution, forming calcium phosphates with great potential to be used as alternative phosphate fertilizer, contributing to implementing the 3R slogan "Reduce, Reuse, Recycle" based on a circular economy. |
| Author Keywords |
Adsorption; Eggshell; Fertilizer; Orange peel; Phosphorus |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000812627600002 |
| WoS Category |
Energy & Fuels; Engineering, Chemical |
| Research Area |
Energy & Fuels; Engineering |
| PDF |
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