Enhancing insight into sorption-degradation interplay: A comparative study on the removal of organics by biochar through experiments and theoretical calculations

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: 354, P. 128519 - 128519

Published: Feb. 1, 2025

Language: Английский

---

Construction of aldehyde-based, ester-based hyper-cross-linked polar resin and its selective adsorption mechanism for phenol in coal chemical wastewater

Environmental Research, Journal Year: 2024, Volume and Issue: 246, P. 118140 - 118140

Published: Jan. 9, 2024

Language: Английский

---

Nanoscale MgO confined in magnetic biochar via two-step pyrolysis for enhanced phosphate adsorption

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 339, P. 126754 - 126754

Published: Feb. 11, 2024

Language: Английский

---

Enhanced adsorption of phenolic compounds using biomass-derived high surface area activated carbon: Isotherms, kinetics and thermodynamics

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: unknown

Published: April 5, 2024

Abstract The progress of industrial and agricultural pursuits, along with the release inadequately treated effluents especially phenolic pollutant, has amplified pollution load on environment. These organic compounds pose considerable challenges in both drinking water wastewater systems, given their toxicity, demanding high oxygen limited biodegradability. Thus, developing an eco-friendly, low-cost highly efficient adsorbent to treat pollutants become important task. present investigation highlights development a novel (CFPAC) by activation Cassia fistula pod shell for purpose removing phenol 2,4-dichlorophnenol (2,4-DCP). significant operational factors (dosage, pH, concentration, temperature, speed) were also investigated. such as pH = 2 T 20°C found be at 1.6 g/L 0.6 dosage 2,4-DCP respectively. Batch experiments further conducted study isotherms, kinetic thermodynamics studies removal 2,4-DCP. activated carbon was characterised mesoporous (specific surface area 1146 m /g, pore volume 0.8628 cc/g), amorphous PZC 6.4. At optimum conditions, maximum sorption capacity 183.79 mg/g 374.4 adsorption isotherm better conformed Redlich Peterson (phenol) Langmuir obeyed pseudo-second-order type behaviour R > 0.999. thermodynamic value isosteric heat suggested that reaction dominated physical (Δ H x < 80 kJ/mol). Further, whole process feasible, exothermic spontaneous nature. overall synthesised from pods can promising compounds. Graphical

Language: Английский

---

Fe-Zn bimetallic oxide functionalized biochar for enhanced adsorption of enrofloxacin in water

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 112208 - 112208

Published: Feb. 14, 2024

Language: Английский

---

Biochar/Delonix regia seed gum/chitosan composite as efficient adsorbent for the elimination of phenol from aqueous medium

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 273, P. 132771 - 132771

Published: May 30, 2024

Language: Английский

---

Development and application of metal–organic frameworks and spherical carbon particles for efficient recovery of phenols and oils from coal chemical wastewater: A new full-process adsorption treatment mode

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155219 - 155219

Published: Aug. 30, 2024

Language: Английский

---

Removal of tetracycline from aqueous solution by magnetic biochar modified with different iron valence and K2C2O4: a comparative study and mechanism

Journal of Analytical and Applied Pyrolysis, Journal Year: 2025, Volume and Issue: 187, P. 107005 - 107005

Published: Feb. 5, 2025

Language: Английский

---

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

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 342, P. 126981 - 126981

Published: March 4, 2024

Language: Английский

---

Development of a comprehensive analytical solution for modeling adsorption kinetics and equilibrium

Separation Science and Technology, Journal Year: 2024, Volume and Issue: 59(3), P. 373 - 394

Published: Feb. 11, 2024

Adsorption has been traditionally modeled using equilibrium models like the Langmuir and Freundlich isotherm models, kinetic such as pseudo-first pseudo-second order equations. However, most of these equations are not in an Indepedant, single-equation form. A novel mathematical framework that combines adsorption kinetics to independant, form is presented herin. The were first solved mass balance derive independant equation, eliminating intermediate variables. This derivation was done for commonly used isotherms Langmuir, Freundlich, Langmuir-Freundlich Linear isotherms. simplified can be predicting solid phase (qe) aqueous concentration (Ce) terms constants, called Equilibrium Solution Equation (EASE). EASE equation further integrated into give a solution which also predict adsorption. named Combined Kinetic (CAKE) validated with experimental data. CAKE offers following advantages: By this combined both concentrations batch systems predicted. Further, variables eliminated, final involving only model constants maximum capacity (qmax), affinity constant (ka), initial (Co), rate (kt) required calculate pollutant at any given time. dataset 2,4-Dichlorophenol studies on activated carbon. fitted datasets very well R2 0.85, normalized absolute percentage error (NAPE) 7.5%., thus validating developed

Language: Английский

---