Synthesis of iron-modified montmorillonite/Al2O3 composite adsorbents and their phosphorus adsorption performance study DOI
Kexin Xie, Jiacheng Xie, Zhenxiang Zhao

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

Abstract The presence of excessive phosphate in aquatic systems can trigger eutrophication processes, causing detrimental impacts on ecological balance. This research developed an innovative phosphorus-adsorbing composite material through iron-modified montmorillonite integrated with Al2O3, synthesized via surface modification coupled hydrothermal calcination (Fe/AlPMt), for phosphorus management. pH optimization experiments demonstrated Fe/AlPMt's effective removal capability across extended acidic range (pH 3.0–6.0). displayed superior selectivity compared to competing anions. Kinetic analysis revealed that the adsorption process conformed a second-order reaction model, particle internal diffusion identified as dominant mechanism. Equilibrium studies indicated satisfactory alignment both Freundlich and Tempkin isotherm models adsorption. Field testing lake water achieved remarkable 99% elimination at 0.3 g/L dosage. Adsorption mechanisms involved multiple pathways: electrostatic attraction, ligand substitution reactions, precipitate formation surfaces. maintained 95.8% efficiency after five regeneration cycles, demonstrating robust recyclability. These results position Fe/AlPMt viable solution phosphorus-contaminated wastewater remediation.

Language: Английский

Hexavalent chromium (Cr(VI)) removal by ball-milled iron-sulfur @biochar based on P-recovery: Enhancement effect and synergy mechanism DOI

Dan Ai,

Yani Tang,

Ruiming Yang

et al.

Bioresource Technology, Journal Year: 2023, Volume and Issue: 371, P. 128598 - 128598

Published: Jan. 9, 2023

Language: Английский

Citations

37
Efficient Adsorption of Nitrogen and Phosphorus in Wastewater by Biochar DOI Creative Commons

Xichang Wu,

Wenxuan Quan, Qi Chen

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(5), P. 1005 - 1005

Published: Feb. 26, 2024

Nitrogen and phosphorus play essential roles in ecosystems organisms. However, with the development of industry agriculture recent years, excessive N P have flowed into water bodies, leading to eutrophication, algal proliferation, red tides, which are harmful aquatic Biochar has a high specific surface area, abundant functional groups, porous structure, can effectively adsorb nitrogen water, thus reducing environmental pollution, achieving reusability elements. This article provides an overview preparation biochar, modification methods advancements adsorption by factors influencing as well mechanisms. Furthermore, difficulties encountered future research directions regarding biochar were proposed, providing references for application adsorption.

Language: Английский

Citations

13
Removal of phosphorus from water bodies using high-performance ceramsite prepared from solid wastes DOI
Tingting Xiao,

Xuyang Fan,

Haoran Wang

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 342, P. 126962 - 126962

Published: March 1, 2024

Language: Английский

Citations

10
Life cycle assessment of biochar and cattle manure application in sugar beet cultivation – Insights into root yields, white sugar quality, environmental aspects in field and factory phases DOI
Elnaz Amirahmadi, Mohammad Ghorbani, Theresa Krexner

et al.

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 476, P. 143772 - 143772

Published: Sept. 24, 2024

Language: Английский

Citations

10
A specific calcium silicate hydrate (PC/SP/CA-H) for simultaneous removal of phosphate and fluoride from low concentration water: Feasible and mechanisms research DOI
Zhiqing Zhao, Man Sun, Jin Xia

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 71, P. 107312 - 107312

Published: Feb. 22, 2025

Language: Английский

Citations

1
Enhancing efficient reclaim of phosphorus from simulated urine by magnesium-functionalized biochar: Adsorption behaviors, molecular-level mechanistic explanations and its potential application DOI
Lei Zhang, Libin Yang, Jiabin Chen

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 906, P. 167293 - 167293

Published: Sept. 22, 2023

Language: Английский

Citations

20
Phosphate recovery using activated sludge cyanophycin: Adsorption mechanism and utilization as nitrogen-phosphorus fertilizer DOI

Jinyu Zeng,

Duoduo Chen,

Jing Zhu

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 476, P. 146607 - 146607

Published: Oct. 10, 2023

Language: Английский

Citations

17
Novel calcium-rich biochar synthesis and application for phosphorus and amoxicillin removal from synthetic and urban wastewater: Batch, columns, and continuous stirring tank reactors investigations DOI
Salah Jellali, Besma Khiari,

Maram Al-Balushi

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 58, P. 104818 - 104818

Published: Jan. 17, 2024

Language: Английский

Citations

7
Potentials of emergent plant residue derived biochar to be alternative carbon-based phosphorus fertilizer by Fe(II)/Fe(III) magnetic modification DOI Creative Commons

Hongjuan Xin,

Jiao Yang, Yuanyuan Lu

et al.

Biochar, Journal Year: 2024, Volume and Issue: 6(1)

Published: Feb. 26, 2024

Abstract Emergent plants have been remarkably effective in reducing phosphorus (P) discharge from ecological ditches; however, the treatment and recycling of these residues is a great challenge. In this study, magnetic biochars (MB s , i.e., MB- A C T ) were fabricated three emergent plant ( Acorus calamus L., Canna indica Thalia dealbata Fraser, respectively) modified with Fe(II)/Fe(III). Scanning electron microscopy-energy dispersive spectroscopy X-ray diffraction spectra confirmed successful loading Fe 3 O 4 FeO(OH) onto surfaces MB . Batch adsorption experiments showed that exhibited higher P capacity than raw biochars. Within range 0.8–43.0 mg L −1 solution, capacities by 304.6–5658.8, 314.9–6845.6, 292.8–5590.0 kg efficiencies 95.2–32.9%, 98.4–39.8%, 91.5–32.5%, respectively. The primary mechanisms caused to adsorb inner-sphere complexation electrostatic attraction. Low pH conditions more beneficial for while co-existing anions had negative impact following order: HCO − > SO 2− Cl ≈NO P-31 nuclear resonance results further demonstrated main adsorbed species on was orthophosphate, followed orthophosphate monoesters DNA. Overall, offer resource utilization strategy P-laden are promising alternative fertilizers. Graphical

Language: Английский

Citations

7
Capturing and recovering phosphorus in water via composite material: Research progress, future directions, and challenges DOI
Yong Zhang, Xuan Wang, Zhiqiang Hu

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 353, P. 128453 - 128453

Published: June 17, 2024

Language: Английский

Citations

7