Biosorption of heavy metals by microorganisms: Evaluation of different underlying mechanisms

Chemosphere, Journal Year: 2022, Volume and Issue: 307, P. 135957 - 135957

Published: Aug. 17, 2022

Language: Английский

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Adsorption of organic water pollutants by clays and clay minerals composites: A comprehensive review

Applied Clay Science, Journal Year: 2022, Volume and Issue: 229, P. 106686 - 106686

Published: Aug. 24, 2022

Clays and clay minerals are inexpensive, non-toxic, naturally occurring that have been utilized in water remediation as adsorbents. However, clays those modified with heat, surfactants, acids, or organic-inorganic modifiers exhibit low adsorption capacity re-generation ability towards organic pollutants. The development of composites has gained considerable attention recent years due to their enhanced capacity, ease recovery from aqueous solution improved physiochemical properties relative raw minerals. This review aims assess literature on including bentonite, montmorillonite kaolinite intercalated carbonaceous, metals, metal oxides, chitosan polymeric materials appraise performance examines the effect composites' physicochemical evaluates mechanism well regeneration methods. also attempts highlight current progress this area by assessing outcomes recently published articles outline research gaps for future research.

Language: Английский

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Adsorption of Heavy Metals: Mechanisms, Kinetics, and Applications of Various Adsorbents in Wastewater Remediation—A Review

Waste, Journal Year: 2023, Volume and Issue: 1(3), P. 775 - 805

Published: Sept. 6, 2023

Heavy metal contamination in wastewater is a significant concern for human health and the environment, prompting increased efforts to develop efficient sustainable removal methods. Despite last few decades, further research initiatives remain vital comprehensively address long-term performance practical scalability of various adsorption methods adsorbents heavy remediation. This article aims provide an overview mechanisms, kinetics, applications diverse remediating metal-contaminated effluents. Physical chemical processes, including ion exchange, complexation, electrostatic attraction, surface precipitation, play essential roles adsorption. The kinetics adsorption, influenced by factors such as contact time, temperature, concentration, directly impact rate effectiveness removal. review presents exhaustive analysis adsorbents, categorized activated carbon, biological agricultural waste-based materials, nanomaterials, which possess distinct advantages disadvantages that are linked their area, porosity, chemistry, concentration. To overcome challenges posed contamination, additional necessary optimize adsorbent performance, explore novel devise cost-effective solutions. comprehensive lays foundation innovation designing optimized systems discovering new materials remediation wastewater.

Language: Английский

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A comprehensive assessment of the method for producing biochar, its characterization, stability, and potential applications in regenerative economic sustainability – A review

Cleaner Materials, Journal Year: 2022, Volume and Issue: 3, P. 100045 - 100045

Published: Jan. 19, 2022

There is a rise of interest in various aspects biochar derived from waste biomass to address the most pressing ecosystem challenges. This study contributes understanding biochar's usage remediation hazardous pollutants. The synthesis using variety different techniques has been explored. Numerous analysts have considered as strategy for enhancing their ability remediate Process factors are primarily responsible determining yield. Biochar-derived an exceptionally rich wellspring carbon produced utilizing thermal combustion. Activating another field where increasingly used remove specific contaminants. Closed-loop methods produce expand options. Distributed manufacturing processes efficient method develop businesses, manage waste, and increase resource proficiency environmental applications. Additionally, this research discusses knowledge gaps future directions toxic pollutant through biochar.

Language: Английский

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The Utilization of Algae and Seaweed Biomass for Bioremediation of Heavy Metal-Contaminated Wastewater

Molecules, Journal Year: 2022, Volume and Issue: 27(4), P. 1275 - 1275

Published: Feb. 14, 2022

The presence of heavy metals in water bodies is linked to the increasing number industries and populations. This has serious consequences for quality human health environment. In accordance with this issue, wastewater treatment technologies including ion exchange, chemical extraction, hydrolysis should be conducted as a first purification stage. However, sequestration these toxic substances tends expensive, especially large scale methods that require tedious control have limited efficiency. Therefore, adsorption using adsorbents derived from biomass represent promising alternative due their great efficiency abundance. Algal seaweed appeared sustainable solution environmentally friendly adsorbent production. review further discusses recent developments use algal potential sorbent metal bioremediation. addition, relevant aspects like toxicity, mechanism, parameters affecting completion process are also highlighted. Overall, critical conclusion drawn algae can used sustainably eliminate wastewater.

Language: Английский

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Sustainable and efficient technologies for removal and recovery of toxic and valuable metals from wastewater: Recent progress, challenges, and future perspectives

Chemosphere, Journal Year: 2021, Volume and Issue: 292, P. 133102 - 133102

Published: Dec. 13, 2021

Language: Английский

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Advances in biosorbents for removal of environmental pollutants: A review on pretreatment, removal mechanism and future outlook

Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 420, P. 126596 - 126596

Published: July 6, 2021

Language: Английский

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Advanced techniques in the production of biochar from lignocellulosic biomass and environmental applications

Cleaner Materials, Journal Year: 2022, Volume and Issue: 6, P. 100137 - 100137

Published: Aug. 30, 2022

Biochar is a carbon-rich product obtained from the thermochemical conversion of biomass. Utilizing biochar essential for enhancing economic viability and maintaining ecology effectively. This work reviews techniques producing various lignocellulosic biomass sources. Pyrolysis technology converting into has emerged as frontier research domain pollutants removal. The effects feedstock parameters, production techniques, reaction conditions (temperature, heating rate, etc.), activation, functional group modification are compared on biochar's physical chemical properties. review also focused environmental applications in several domains, such agriculture wastewater treatment. Considering extensive availability feedstock, excellent physical/chemical surface properties, inexpensive cost, remarkable potential removing water efficiently. Studying evolution properties by in-situ or post-modification great significance improving utilization value valuable resource, yet its application necessitates additional structure, well development to modify those factors.

Language: Английский

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Assessing cationic dye adsorption mechanisms on MIL-53 (Al) nanostructured MOF materials using quantum chemical and molecular simulations: Toward environmentally sustainable wastewater treatment

Journal of Water Process Engineering, Journal Year: 2023, Volume and Issue: 55, P. 104081 - 104081

Published: July 29, 2023

Language: Английский

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Cr(VI) and doxorubicin adsorptive capture by a novel bionanocomposite of Ti-MOF@TiO2 incorporated with watermelon biochar and chitosan hydrogel

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 253, P. 126489 - 126489

Published: Aug. 23, 2023

Language: Английский

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