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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Performance of cross-linked chitosan-zeolite composite adsorbent for removal of Pb2+ ions from aqueous solutions: Experimental and Monte Carlo simulations studies

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 391, P. 123310 - 123310

Published: Oct. 11, 2023

Language: Английский

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Recent advances in water remediation from toxic heavy metals using biochar as a green and efficient adsorbent: A review

Case Studies in Chemical and Environmental Engineering, Journal Year: 2023, Volume and Issue: 8, P. 100495 - 100495

Published: Sept. 22, 2023

Heavy metal pollution is a serious environmental problem that poses threat to human health and the environment. Water by toxic heavy metals major cause of this problem, it can destroy ecosystems, spread disease, make drinking water unsafe. Biochar promising green adsorbent for removing from water. It derived various biomasses, including agricultural organic wastes, has high carbon content, surface area, stability. These properties enable biochar effectively remove through cation exchange adsorption. This review summarizes recent advances in modification enhanced adsorption metals. discusses advantages, applications, challenges, prospects method. Biochar-based advanced oxidation processes (AOPs) have shown promise decomposition complexes enhancement capacity free ions industrial wastewater. The also highlights research gaps limitations remediation proposes future directions. Future should focus on developing environmentally friendly cost-effective technologies scaling up biochar-based removal applications. Scheme 1 illustrates overall summarized presentation article as graphical abstract.

Language: Английский

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Zeolite Properties, Methods of Synthesis, and Selected Applications

Molecules, Journal Year: 2024, Volume and Issue: 29(5), P. 1069 - 1069

Published: Feb. 29, 2024

Zeolites, a group of minerals with unique properties, have been known for more than 250 years. However, it was the development methods hydrothermal synthesis zeolites and their large-scale industrial applications (oil processing, agriculture, production detergents building materials, water treatment processes, etc.) that made them one most important materials 20th century, great practical research significance. The orderly, homogeneous crystalline porous structure zeolites, susceptibility to various modifications, useful physicochemical properties contribute continuous expansion in both large-volume processes (ion exchange, adsorption, separation mixture components, catalysis) specialized ones (sensors). following review knowledge available literature on aims present information methods, selected this aluminosilicates. Special attention is given use agriculture environmental protection.

Language: Английский

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Environmental hazards and comprehensive utilization of solid waste coal gangue

Progress in Natural Science Materials International, Journal Year: 2024, Volume and Issue: 34(2), P. 223 - 239

Published: March 12, 2024

Language: Английский

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Advancements in Adsorption Techniques for Sustainable Water Purification: A Focus on Lead Removal

Separations, Journal Year: 2023, Volume and Issue: 10(11), P. 565 - 565

Published: Nov. 10, 2023

The long-term sustainability of the global water supply, with a paramount emphasis on cleanliness and safety, stands as formidable challenge in our modern era. In response to this pressing issue, adsorption techniques have emerged pivotal widely recognized solutions for removal hazardous pollutants, particular lead from wastewater. This comprehensive review explores relentless advancements made domain, highlighting innovations using separation purification that surpass traditional metal oxide-based adsorbents. Of note is growing exploration alternative materials, such starch, chitosan, nanoscale structures like zeolites metal-organic frameworks, magnetic carbon-based substances development inorganic These their remarkable capacity structural adjustment, possess extraordinary capabilities effective contaminant removal, facilitating swift purification. literature survey was conducted Google Scholar engine, “adsorbents remediation” starting keywords, resulting approximately 6000 papers. search refined focus last three years specifically targeted papers which are most relevant remediation. More than 100 were analysed investigate various techniques, surface modifications, adsorbent materials managing pollutants water. also illuminates research limitations, specific starch-based adsorbents As we progress towards practical commercial applications, identifies challenges associated provides invaluable insights into future prospects. Surface modification emerges promising path, potential substantially enhance capacity, potentially doubling or even quadrupling it. Moreover, demonstrate impressive regenerative capabilities, maintaining up 90% regeneration efficiency after multiple cycles. conclusion, show considerable agents aquatic environments. Nevertheless, need further persists, emphasizing optimization process exploring stability real-world scenarios.

Language: Английский

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A critical and comprehensive review of the current status of 17β-estradiol hormone remediation through adsorption technology

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(17), P. 24679 - 24712

Published: March 15, 2024

Language: Английский

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Modification of natural zeolites and their applications for heavy metal removal from polluted environments: Challenges, recent advances, and perspectives

Heliyon, Journal Year: 2024, Volume and Issue: 10(3), P. e25303 - e25303

Published: Feb. 1, 2024

In recent decades, environmental pollution has become a significant problem for human health and impact. The high accumulation of heavy metals in waters soils from different sources was conducted finding efficient environmentally friendly treatment methods materials their removal, respectively. Natural zeolites have found wide-ranging applications remediation protection, considering various modification designed to enhance the natural zeolites' adsorptive or ion-exchange capabilities increased efficiency. This paper briefly consolidates scientific literature related main characteristics modified zeolites, advantages limitations applying remediation, summarizes methodologies applied order improve properties. Their application removing water systems is also comprehensively discussed. review highlights excellent potential be used after specific as sustainable green material solve numerous issues.

Language: Английский

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Bisphenol A (BPA) remediation using walnut shell as activated carbon employing experimental design for parameter optimization and theoretical study to establish the adsorption mechanism

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 161, P. 112064 - 112064

Published: Jan. 14, 2024

Language: Английский

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From classic to cutting-edge solutions: A comprehensive review of materials and methods for heavy metal removal from water environments

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 319, P. 100446 - 100446

Published: May 31, 2024

Waterborne heavy metals pose significant threats to both the environment and public health, causing neurological damage, developmental disorders, organ cancer. It is essential address contamination of various water bodies by these hazardous substances due their persistent nature lack biodegradability. This review thoroughly explores traditional modern strategies utilized remedy sources contaminated with evaluates effectiveness potential scalability each method. A literature survey reveals several effective for removing from water: adsorption, flotation, ion exchange, chemical precipitation, membrane-based filtration, coagulation, flocculation, phytoremediation, electrochemical methods. In our examination, we discussed agents/adsorbents used, efficiency removal technique, operating conditions, intrinsic advantages disadvantages approach. Summarizing key findings, noted a focus on adsorption techniques; however, challenges include selectively diverse ions, prolonged retention times, cycling stability. While membrane methods are practical, issues like large-volume sludge formation exist. Although electrical-based appear promising, solutions needed industrial-scale separation as well. Prioritizing real wastewater samples in studies crucial. Future research should emphasize eco-friendly, cost-effective

Language: Английский

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