Heavy metal pollution in the aquatic environment: efficient and low-cost removal approaches to eliminate their toxicity: a review

RSC Advances, Journal Year: 2023, Volume and Issue: 13(26), P. 17595 - 17610

Published: Jan. 1, 2023

Heavy metal contamination of water sources has emerged as a major global environmental concern, threatening both aquatic ecosystems and human health. pollution in the environment is on rise due to industrialization, climate change, urbanization. Sources include mining waste, landfill leachates, municipal industrial wastewater, urban runoff, natural phenomena such volcanic eruptions, weathering, rock abrasion. ions are toxic, potentially carcinogenic, can bioaccumulate biological systems. metals cause harm various organs, including neurological system, liver, lungs, kidneys, stomach, skin, reproductive systems, even at low exposure levels. Efforts find efficient methods remove heavy from wastewater have increased recent years. Although some approaches effectively contaminants, their high preparation usage costs may limit practical applications. Many review articles been published toxicity treatment for removing wastewater. This focuses main pollution, chemical transformation, toxicological impacts environment, harmful effects ecosystem. It also examines advances cost-effective techniques physicochemical adsorption using biochar zeolite ion exchangers, well decomposition complexes through advanced oxidation processes (AOPs). Finally, advantages, applications, future potential these discussed, along with any challenges limitations that must be considered.

Language: Английский

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Recent trends in the application of metal-organic frameworks (MOFs) for the removal of toxic dyes and their removal mechanism-a review

Sustainable materials and technologies, Journal Year: 2021, Volume and Issue: 31, P. e00378 - e00378

Published: Dec. 13, 2021

Language: Английский

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Rapid and efficient adsorption of methylene blue dye from aqueous solution by hierarchically porous, activated starbons®: Mechanism and porosity dependence

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 436, P. 129174 - 129174

Published: May 18, 2022

Hierarchically porous activated Starbons® derived from starch are found to make excellent adsorbents for methylene blue, even in the presence of other dyes and inorganic salts, highlighting their potential be used water purification. The optimal material (S950C90) has a blue adsorption capacity (891 mg g-1) almost nine times higher than that unactivated S800 four commercial carbon at 298 K. onto materials (S950C90 S800K4) reaches equilibrium within 5 min. Adsorption data all show good fit Freundlich isotherm which allows Gibbs free energies calculated. capacities increase as pH solution increases, allowing dye desorbed by treatment with acidic ethanol Starbon® reused. Porosimetry SEM-EDX imaging indicate adsorbs throughout surface completely fills micropores adsorbent. correlations both BET areas micropore volumes materials.

Language: Английский

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Phenolic compounds in water: From toxicity and source to sustainable solutions – An integrated review of removal methods, advanced technologies, cost analysis, and future prospects

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112964 - 112964

Published: May 6, 2024

Language: Английский

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Green synthesis and characterization of magnetic gamma alumina nanoparticlesfor copper ions adsorption from synthetic wastewater

Results in Engineering, Journal Year: 2024, Volume and Issue: 22, P. 101971 - 101971

Published: March 12, 2024

Green synthesis of magnetic gamma alumina nanoparticles (MGAl-NPs) for heavy metal adsorption: A novel approach wastewater treatment. This study investigates the potential magnetically modified removing copper (II) ions from aqueous solutions. The MGAl-NPs involves mixture aluminum hydroxide and iron oxide, resulting in a composite material with both adsorptive properties. adsorption capacity was found to be 34.48 mg/g at optimal conditions pH 5.0, initial concentration 50 mg/L, adsorbent dosage 0.1 g.The kinetics followed pseudo-second-order model, indicating that chemisorption dominant mechanism. Langmuir isotherm model best described data an R2 value 0.995, suggesting occurred through monolayer coverage. efficiency increased decreasing pH, confirming electrostatic attraction played significant role adsorption.Our findings demonstrate green is effective eco-friendly method metals wastewater. properties enable easy separation recovery adsorbed metals, making them promising candidate practical applications. provides valuable insights into developing sustainable adsorbents water pollution remediation.

Language: Английский

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Exploring zeolite-based composites in adsorption and photocatalysis for toxic wastewater treatment: Preparation, mechanisms, and future perspectives

Environmental Pollution, Journal Year: 2024, Volume and Issue: 349, P. 123922 - 123922

Published: April 3, 2024

Language: Английский

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Adsorptive removal of paracetamol from aqueous media: A review of adsorbent materials, adsorption mechanisms, advancements, and future perspectives

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 396, P. 123976 - 123976

Published: Jan. 10, 2024

Language: Английский

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A comprehensive review on novel zeolite-based adsorbents for environmental pollutant

Journal of Hazardous Materials Advances, Journal Year: 2025, Volume and Issue: unknown, P. 100617 - 100617

Published: Jan. 1, 2025

Language: Английский

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Exploration of magnetic zeolite thin film derived from coal fly ash an efficient sorbent: Application to water treatment

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 374, P. 123972 - 123972

Published: Jan. 6, 2025

Language: Английский

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Exploring the Application of Zeolite Technology in Ethiopia: A Path to Sustainable Agriculture Development

Journal of Plant Nutrition and Soil Science, Journal Year: 2025, Volume and Issue: 188(1), P. 17 - 30

Published: Jan. 5, 2025

ABSTRACT Ethiopia faces significant agricultural challenges, including soil degradation, nutrient depletion, and water scarcity, which threaten food security sustainable development. Addressing these issues requires innovative solutions to enhance health, conserve resources, improve crop productivity. This bibliographic review systematically explores the potential of zeolite technology as a tool for tackling challenges in Ethiopia. Studies sourced from databases, such Google Scholar, PubMed, Scopus, AGRIS, were analyzed, with 123 articles selected on basis relevance, credibility, data support. Zeolite offers multiple benefits, reducing leaching by 65%–86%, increasing pH levels 7.05 8.12 7.5 t ha −1 application, improving grain yields 15.9%–31.8% across crops like rice, barley, maize 10 application. Despite advantages, adoption remains limited. highlights need field trials assess crop‐specific responses socio‐economic impacts. If identified research gaps are addressed, could become an essential component Ethiopia's toolkit, enabling farmers productivity, adapt climate variability, achieve security. Its transform farming systems, contributing resilience against environmental stresses supporting long‐term

Language: Английский

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