Cross-linked chitosan/H-ZSM-5 zeolite composite film for chromium removal from aqueous solutions: optimization using response surface methodology and adsorption mechanism assessment

Environmental Science and Pollution Research, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 8, 2025

Language: Английский

---

Biochar: a potential and green adsorbent for antibiotics removal from aqueous solution

Reviews in Environmental Science and Bio/Technology, Journal Year: 2024, Volume and Issue: 23(4), P. 1065 - 1103

Published: Nov. 7, 2024

Language: Английский

---

Investigations on Amoxicillin Removal from Aqueous Solutions by Novel Calcium-Rich Biochars: Adsorption Properties and Mechanisms Exploration

Processes, Journal Year: 2024, Volume and Issue: 12(8), P. 1552 - 1552

Published: July 25, 2024

This study investigates the synthesis, characterization, and environmental application for amoxicillin (AMX) removal in batch mode of three novel calcium-rich biochars. These biochars were produced from co-pyrolysis poultry manure, date palm wastes, waste marble powder at temperatures 700 °C (Ca-B-700), 800 (Ca-B-800), 900 (Ca-B-900). Characterization results show that increasing pyrolysis temperature improved structural, textural, surface chemistry properties. For instance, BET area Ca-B-900 was assessed to be 52.3 m2 g−1, which is 14.1 3.1 times higher than those observed Ca-B-700 Ca-B-800, respectively. Moreover, shows AMX ability (56.2 mg g−1) Ca-B-800 (46.8 g−1), (14.6 numerous other engineered The process by these favorable under wide experimental conditions initial pH concentrations. Additionally, modeling data adsorption includes both physical chemical mechanisms. confirms Ca-rich can perform significant mode.

Language: Английский

---

Innovative low-voltage 3D electrode system using pine cone biochar for efficient removal of multicomponent pollutants from wastewater

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 74, P. 107744 - 107744

Published: April 22, 2025

Language: Английский

---

Synthesis of Mg-, Al- and Mg/Al-date palm fronds modified biochars: characterization and investigations on phosphorus adsorption characteristics

Comptes Rendus Chimie, Journal Year: 2024, Volume and Issue: 27(S3), P. 1 - 14

Published: Nov. 13, 2024

Phosphorus (P) recovery by engineered biochars for a further subsequent use in agriculture promotes circular economy and sustainability concepts. In this study, three were synthesized at 500 °C from pre-impregnated date palm fronds (DPFs) with 1 M solutions containing either MgCl2 (DPF-Mg-B), AlCl3 (DPF-Al-B) or combination of MgCl2/AlCl3 (DPF-Mg/Al-B). Subsequently, the structural, textural, surface chemistry properties these assessed. Then, P aqueous was evaluated under various experimental conditions. Characterization results revealed that exhibited high loads deposition Mg- and/or Al-based nanoparticles. The DPF-Mg/Al-B showed most interesting physicochemical properties. Notably, corresponding Mg Al contents; BET area total pore volume to 99.6 136.0 mg·g–1; 180.0 m2·g–1 0.09 cm3·g–1, respectively. Batch assays efficiency studied influenced contact time, initial pH, concentration also presence foreign anions, especially nitrates chlorides. Moreover, owing its attractive properties, highest capacity (14.1 mg·g–1) which is 1.3 1.7 higher than DPF-Mg-B DPF-Al-B, kinetic isotherm data modelling suggest process governed both physical chemical mechanisms. These P-loaded have potential serve as promising fertilizers, offering sustainable alternative synthetic counterparts. La récupération du phosphore par des modifiés pour une utilisation ultérieure en favorise les concepts d'économie circulaire et de développement durable. Dans cette étude, trois ont été synthétisés à partir feuilles palmier dattier (DPF) pré-imprégnées avec contenant soit ou un mélange Par la suite, propriétés chimiques structurelles, texturales ces évaluées. Ensuite, aqueuses évaluée sous diverses conditions expérimentales. Les résultats caractérisation révélé que nanoparticules et/ou d'Al déposées sur synthétisés. Le montré physico-chimiques plus intéressantes. Notamment, teneurs correspondantes ; le pores évalués 99,6 136,0 mg·g–1 180,0 0,09 respectivement. essais efficacité est influencée temps contact, pH aqueux initial, ainsi présence d'autres notamment chlorures. biochar présenté capacité élevée (14,1 mg·g–1), 1,3 1,7 supérieure celle modélisation données expérimentales cinétiques isothermes suggère processus régi mécanismes fois physiques chimiques. Ces chargés peuvent être utilisés place fertilisants synthétiques.

---

Eco-Friendly Modified Biochar for Phosphate Removal: Adsorption Mechanism and Application in Pressed Vegetable Wastewater Treatment

Environmental Engineering Science, Journal Year: 2024, Volume and Issue: 41(10), P. 401 - 412

Published: Aug. 8, 2024

Phosphorus in wastewater from pressed vegetables is a significant contributor to water pollution, emphasizing the importance of its removal and recycling for ecological management. In this study, an improved method coprecipitation pyrolysis Mg(OH)2 FeCl3•6H2O was used successfully synthesize iron-magnesium biochar composite (FeMg@BC2) corn cob. Compared with iron-modified (Fe@BC), magnesium-modified (Mg@BC), iron–magnesium-modified (FeMg@BC1) prepared by traditional methods, iron–magnesium had higher yield, specific surface area, crystallinity. The study investigated impact modified dosage, initial solution pH, coexisting ions on adsorption capabilities phosphate removal. results demonstrated that addition 1.0 g/L FeMg@BC2 highly effective removing simulated when concentration 80 mg/L, achieving rate exceeding 95%. Using isotherm model, maximum capacities Fe@BC, Mg@BC, FeMg@BC1, were estimated be 40.76, 46.97, 96.78, 107.97 mg/g, respectively. Particularly, exhibited superior capacity, mechanism mainly included electrostatic attraction, precipitation, ligand exchange. desorption test phosphorus-loaded revealed rates vegetable using 0.5M NaOH 92.2% 84.8%, After three cycles wastewater, phosphorus efficiency at remained about 50%. Therefore, utilization recovery showed promising potential.

Language: Английский

---

Phosphorus recovery from aqueous solutions by a Mg/Al-modified biochar from date palm wastes in column mode: adsorption characteristics and scale-up design parameters assessment

Biomass Conversion and Biorefinery, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 17, 2024

Language: Английский

---