Knowledge Agora

Title	Efficient recovery of phosphate from simulated urine by Mg/Fe bimetallic oxide modified biochar as a potential resource
ID_Doc	8371
Authors	Liu, HB; Shan, JH; Chen, ZB; Lichtfouse, E
Title	Efficient recovery of phosphate from simulated urine by Mg/Fe bimetallic oxide modified biochar as a potential resource
Year	2021
Published
Abstract	The massive use of phosphate fertilizers in agriculture is costly and induces water pollution, calling for more sustainable phosphate sources in the context of the circular economy. Here we prepared a new adsorbent based on waste straw biochar modified with the Mg/Fe bimetallic oxide, namely the Mg/Fe biochar, to recover phosphate from the simulated urine as an possible phosphate fertilizer. About 90% phosphate was recovered from the simulated urine with a wide pH range of 3.0-9.0 and a maximum adsorption capacity of 206.2 mg/g, using 1 g/L of Mg/Fe modified biochar. A pseudo second-order kinetics and Sips model were proposed to fit the experimental data well, suggesting that the adsorption was controlled by physical and chemical processes, which is driven by electrostatic attraction, intra-particle diffusion, ion exchange and surface ligand exchange. Overall, the Mg/Fe biochar is renewable and can recover more than 70% of phosphate in the simulated urine after 5 cycles of reuse, which appears as a safe and efficient adsorbent to recycle phosphate from urine. (c) 2021 Elsevier B.V. All rights reserved.
PDF

Similar Articles

ID	Score	Article
7388		Zhang, L; Yang, LB; Yang, MC; You, XG; Hong, YY; Yang, YC; Chen, JB; Lin, Y; Zhang, YL; Zhou, XF Phosphorus recovery from urine by CO₂-activated biochar for sustainable slow-release fertilizer applications: Unveiling adsorption mechanisms by statistical physics modeling and predictive modeling with artificial neural networks(2024)
13773		Nardis, BO; Franca, JR; Carneiro, JSD; Soares, JR; Guilherme, LRG; Silva, CA; Melo, LCA Production of engineered-biochar under different pyrolysis conditions for phosphorus removal from aqueous solution(2022)
24411		Muscarella, SM; Di Trapani, D; Laudicina, VA; Mannina, G Phosphorus recovery from ultrafiltered membrane wastewater by biochar adsorption columns: The effect of loading rates(2024)Heliyon, 10, 14
11041		Liu, ZH; Liu, HB; Zhang, Y; Lichtfouse, E Efficient phosphate recycling by adsorption on alkaline sludge biochar(2023)Environmental Chemistry Letters, 21, 1
20225		Marcinczyk, M; Ok, YS; Oleszczuk, P From waste to fertilizer: Nutrient recovery from wastewater by pristine and engineered biochars(2022)
8683		Maia, MA; Kranse, OP; van den Akker, S; Torrente-Murciano, L Phosphate Recovery from Urine-Equivalent Solutions for Fertilizer Production for Plant Growth(2023)Acs Sustainable Chemistry & Engineering, 11.0, 45
13766		Ganem, HE; Litaor, MI; Reichmann, O; Zohar, I Optimization of phosphorus removal from agro-wastewater by iron desalinization treatment residue (Fe-DTR)(2023)Journal Of Environmental Chemical Engineering, 11, 6
24478		Biswal, BK; Balasubramanian, R Use of biochar as a low-cost adsorbent for removal of heavy metals from water and wastewater: A review(2023)Journal Of Environmental Chemical Engineering, 11, 5
25041		Pap, S; Zhang, HY; Bogdan, A; Elsby, DT; Gibb, SW; Bremner, B; Taggart, MA Pilot-scale phosphate recovery from wastewater to create a fertiliser product: An integrated assessment of adsorbent performance and quality(2023)
19587		Jetsrisuparb, K; Jeejaila, T; Saengthip, C; Kasemsiri, P; Ngernyen, Y; Chindaprasirt, P; Knijnenburg, JTN Tailoring the phosphorus release from biochar-based fertilizers: role of magnesium or calcium addition during co-pyrolysis(2022)Rsc Advances, 12.0, 47