Valorization of Agroindustrial Waste as Biosorbent of Lead (II) in Solution and its Reuse in the Manufacture of Building Bricks

Recent Progress in Materials, Journal Year: 2025, Volume and Issue: 07(01), P. 1 - 16

Published: Jan. 10, 2025

Lead is a non-biodegradable toxic heavy metal. Biosorption process an attractive technique to remediate lead-contaminated environments because it simple, effective and low-cost. In addition, rice husk constitutes highly available residual biomass that could be used as bioadsorbent. Thus, the aim of this study was analyze biosorption lead on natural chemically treated evaluate incorporation residue (biomass-contaminant) into ceramic matrices immobilize removed lead. Natural alkaline activated were characterized like bioadsorbents in solution. Data obtained from biosorptions experiments demonstrated removal maximum at pH 5 equilibrium achieved 30 min. The retention efficiency improved due treatment, achieving higher than 94 % even when low doses bioadsorbent used. data showed satisfactory fits Langmuir isotherm followed pseudo-second order rate kinetic. After process, pieces mixtures commercial clay with adsorbed metal, added by 10 volume. fixation determined ecotoxicity leachate tests demonstrating immobilized within their structure. Finally, use incorporating biomass-lead presented eco-friendly alternative detoxification for environments.

Language: Английский

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Application of supervised learning models for enhanced lead (II) removal from wastewater via modified cellulose nanocrystals (CNCs)

Journal of Environmental Science and Health Part A, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 10

Published: Jan. 16, 2025

Heavy metal ions are acknowledged to impact the environment and human health adversely. CNCs effective materials for removing heavy in industrial applications process innovations since they can be used static dynamic adsorption processes. Cost-effective, uncomplicated water treatment technologies must developed using biodegradable polymers, namely, modified cellulose nanocrystals. Adaptive neuro-fuzzy inference systems (ANFISs) artificial neural networks (ANNs) were evaluate examine efficacy of nanocrystals lead(II) from wastewater. The research indicated that maximum capacity attained was 260 mg/g at a pH 6, an initial concentration 200 mg/L, contact duration 300 min, 5 g/200 mL dose. Influence four input variables on Pb(II) capacity: experimental data juxtaposed with outcomes ANN ANFIS ascertain pH, time, starting concentration, correlations 0.9916 created network (ANN) 0.9953 adaptive system indicate study may predicted precision. had Pearson's chi-square value 0.638, surpassing ANN's score 0.979.

Language: Английский

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Prospects of layered double hydroxide (LDH)-based adsorbents for the remediation of environmental inorganic pollutants from wastewater: a critical review

Environmental Science Water Research & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

LDH based adsorbents for inorganic pollutant remediation.

Language: Английский

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Green-synthesized Ag-TiO2/chitosan-cyclodextrin films for enhanced antibacterial activity and prolonged mango preservation

Food Bioscience, Journal Year: 2025, Volume and Issue: unknown, P. 106679 - 106679

Published: April 1, 2025

Language: Английский

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Continuous packed bed column removal of Cr⁶⁺, Cd²⁺, and Pb²⁺ ions from synthetic wastewater using polymeric ultra‐permeable and biodegradable ferromagnetic nanocomposite membrane

The Canadian Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

Abstract Water purification techniques, including membrane technologies, ion exchange and adsorption, chemical/biochemical reduction, electrochemical processes, have been developed to remove/recover metal ions species from polluted wastewater. This work assessed the efficiency of polymeric, biodegradable, ultra‐permeable magnetic nanocomposite (CNCs/N6@Fe 3 O 4 ‐CT) in a continuous packed bed column for removal Cd(II), Cr(VI), Pb(II) synthetic wastewaters. The eco‐compatibility CNCs/N6@Fe ‐CT was increased using chitosan biopolymer. Fe nanoparticles surface area improved separation process. CNCs N6 polymeric materials enhanced their strength, porosity, additional binding sites. employed as packing material fixed‐bed lab‐scale (height 30 cm, diameter 1.5 cm) constantly remove wastewaters actual hexavalent chromium tannery effluent. studies were carried out with different initial concentrations (10, 20, mg/L), input flow rates (2, 4, 6 mL/min), solution pH values (2.0, 5.0, 8.0). obtained experimental data breakthrough curves fitted traditional dynamic Thomas model, Yoon‐Nelson, Bed Depth Service Time (BDST) model.

Language: Английский

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Experimental Analysis of Thermal and Mechanical Performance of ZnO-Reinforced Nylon Composites

Doklady Chemistry, Journal Year: 2024, Volume and Issue: 516(1-2), P. 95 - 105

Published: June 1, 2024

Language: Английский

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