Rapid Adsorption of Ammonium on Coffee Husk and Chicken Manure-Derived Biochars: Mechanisms Unveiled by Chemical Speciation, Physical, and Spectroscopic Approaches

Sustainability, Journal Year: 2025, Volume and Issue: 17(4), P. 1616 - 1616

Published: Feb. 15, 2025

Biochars have emerged as a sustainable technology for converting waste into high-value, stable carbon products. Depending on its properties, biochar can retain various elements, including nitrogen (N) ammonium (N-NH4+). This study aimed to evaluate the rapid retention of N-NH4+ in biochars produced from coffee husk (CH) and chicken manure (CM) at different pyrolysis temperatures (PTs) (300 °C, 400 900 °C) investigate mechanisms involved. A adsorption experiment was conducted, which an NH4Cl solution passed through biochars. The following analyses were performed: cation exchange capacity (CEC), surface area, pore volume size, total N content, retention, infrared analysis (ATR-FTIR), leachate analysis, followed by chemical speciation using Visual MINTEQ software. results indicated that involved retention. In CH-derived 300 occurred primarily electrostatic interactions with negative charges confirmed ATR-FTIR analysis. CM-derived mainly formation struvite (NH4MgPO4·6H2O), MINTEQ. ions trapped pores charred matrix due increased volume, decreased size. studied proved effective retaining mechanisms, suggesting enhance reduce leaching, potentially serving source crops.

Language: Английский

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Tri-functional lanthanum-based biochar for efficient phosphorus recovery, bacterial inhibition, and soil fertility enhancement

Biochar, Journal Year: 2023, Volume and Issue: 5(1)

Published: March 20, 2023

Abstract Excess phosphorus (P) in water can lead to eutrophication and upset ecological balance. In this study, biochar with ultrathin two-dimensional nanosheets from the natural mesocarp of shaddock was chosen as carrier. The highly dispersed small particle size La(OH) 3 on surface (MSBL3) successfully achieved using chemical impregnation for adsorption P aqueous solution, maximum capacity 260.0 mg g −1 [La]. differences crystallization at different La loadings were analyzed high-precision characterization methods. After six adsorption–desorption cycles, MSBL3 retained 76.7% its initial performance terms capacity. preparation 1 costs about RMB 1, it could reduce concentration 2.6 ton Laoyu River below threshold; inhibitory effect bodies confirmed by growth state hyacinth. Furthermore, 0.1 M inhibit Escherichia coli Staphylococcus aureus up 98.7% 85.0%, respectively, which indicates that be used recover also improve quality. addition, maize seedlings verified P-absorbed waste is a good soil fertilizer solve problem post-treatment adsorbent. conclusion, prepared study promising sorbent application. Graphical

Language: Английский

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Boosting synergistic recovery of ammonia nitrogen and phosphate from phosphorus chemical wastewater by co-pyrolyzing the biomass and magnesite

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 347, P. 127645 - 127645

Published: April 24, 2024

Language: Английский

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Functionally-designed metal salt and ball milling co-modified sludge biochar for adsorptive removal of trace level sulfamethoxazole: Behavior, characterization, mechanism and DFT study

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 113479 - 113479

Published: July 2, 2024

Language: Английский

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Long-term physical and chemical aging of biochar affected the amount and bioavailability of PAHs and their derivatives

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 440, P. 129795 - 129795

Published: Aug. 18, 2022

Biochar applied into the soil is recommended as an effective tool for increasing its properties and crop productivity. However, biochar can contain some potentially toxic compounds such polycyclic aromatic hydrocarbons (PAHs). Moreover, during production or environmental application (e.g. fertilizer), more PAHs derivatives containing nitrogen, oxygen sulfur be formed. There a lack of information on how factors affect bioavailability long-term BC soil. In presented studies effects physical (freeze-thaw cycles) chemical aging (temperatures 60 °C 90 °C) total bioavailable content their were estimated. The results indicate that (6 months) affected physicochemical characteristic biochars promoting formation new C O-containing species surface polarity hydrophilicity. Physical promoted with higher molecular weight significant (up to 550 %) increase in derivatives. this study highlight importance fraction evaluation toxicity aged biochar.

Language: Английский

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Adsorption and Removal of Phosphate from Wastewater Using Lignin-Based Adsorbent Modified with Lanthanide: Characterization, Performance, and Mechanisms

Industrial & Engineering Chemistry Research, Journal Year: 2022, Volume and Issue: 61(49), P. 18069 - 18079

Published: Nov. 4, 2022

Water eutrophication due to the discharge of wastewater containing phosphate has aroused considerable concern around world, and adsorption been identified as one viable solutions solve problem. It is crucial develop an eco-friendly cost-effective adsorbent for preventing water bodies. In this study, we developed a simple coprecipitation approach prepare lanthanum-based modified calcium lignosulfonate (La-CL) treating wastewater. La-CL exhibited excellent ability its high loading lanthanum (59.29%) large specific surface area (175.3 m2 g–1). wide range pH values (2–11), capacity onto remained stable, removal rate was above 90%. The maximum could reach 107 mg g–1 at optimum = 7, reached equilibrium within 240 min. After seven consecutive regeneration experiments, still maintain desorption more than 75%, indicating that certain degree regenerative performance. Moreover, behaviors adsorbents were fitted Freundlich isotherm pseudo-second-order model, suggesting chemical heterogeneous process. mechanistic studies revealed ligand exchange played significant role in phosphate. This study would provide strategy "treating waste with waste" removing from low concentrations based on La-CL.

Language: Английский

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Recent developments in metallic-nanoparticles-loaded biochars synthesis and use for phosphorus recovery from aqueous solutions. A critical review

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 342, P. 118307 - 118307

Published: June 1, 2023

Language: Английский

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Phosphate and ammonia nitrogen recovery from sewage sludge supernatants by coupled MgO-biomass ash and its potential as heavy metal adsorbent

Arabian Journal of Chemistry, Journal Year: 2023, Volume and Issue: 16(8), P. 104945 - 104945

Published: April 27, 2023

Aiming at the problem of complex treatment for energy solid waste—biomass ash (BA) from thermal power plant and difficult recovery phosphorus ammonia nitrogen in sewage sludge supernatants, a coupled MgO-biomass (CMBA) was established. CMBA composites were synthesized by situ thermal-precipitation modification method, which simultaneously achieved BA resource utilization, explored potential recovered (RCMBA) containing phosphate to remove heavy metal wastewater. The results showed that magnesium oxide could be effectively loaded on surface an MgCl2 concentration 1.25 M calcination temperature 400 °C. pH, adsorbent dosages initial affected adsorption capacity 400CMBA. existence K+, Ca2+ Mg2+ ions promoted removal 400CMBA, but hindered nitrogen. Cl-, NO2- SO42- processes 400CMBA can used with Langmuir-Freundlich model pseudo-second-order reaching maximum 262.88 mg/g 122.39 mg/g, respectively. behavior controlled several processes, spontaneous thermogenic chemisorption. saturated regenerated 0.1 HCl solution. After fifth regeneration, rates less than 50% 25%, mechanisms mainly physical adsorption, electrostatic attraction, ion exchange, complexation reaction chemical precipitation, among precipitation dominated struvite crystallization dominant. In addition, RCMBA had specific effect solutions. Overall, this work provides feasible way utilization waste-BA plant.

Language: Английский

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Analysis of the adsorption and fixation process of ammonium nitrogen in arable soil by biochar based on molecular dynamics simulation

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 930, P. 172815 - 172815

Published: April 26, 2024

Language: Английский

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Divergent responses of phosphorus solubilizing bacteria with P-laden biochar for enhancing nutrient recovery, growth, and yield of canola (Brassica napus L.)

Chemosphere, Journal Year: 2024, Volume and Issue: 353, P. 141565 - 141565

Published: Feb. 27, 2024

Language: Английский

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