Heavy metal water pollution: A fresh look about hazards, novel and conventional remediation methods

Environmental Technology & Innovation, Journal Year: 2021, Volume and Issue: 22, P. 101504 - 101504

Published: March 20, 2021

Language: Английский

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Review of organic and inorganic pollutants removal by biochar and biochar-based composites

Biochar, Journal Year: 2021, Volume and Issue: 3(3), P. 255 - 281

Published: July 7, 2021

Abstract Biochar (BC) has exhibited a great potential to remove water contaminants due its wide availability of raw materials, high surface area, developed pore structure, and low cost. However, the application BC for remediation many limitations. Driven by intense desire overcoming unfavorable factors, growing number researchers have carried out produce BC-based composite which not only improved physicochemical properties BC, but also obtained new material combined advantages other materials. This article reviewed previous researches on discussed in terms preparation methods, properties, performance contaminant removal, underlying adsorption mechanisms. Then recent research progress removal inorganic organic materials was systematically reviewed. Although shown or pollutants risks (such as stability biological toxicity) still need be noticed further study. At end this review, future prospects synthesis were proposed. review will help understand environmental remediation.

Language: Английский

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Biochar for the removal of contaminants from soil and water: a review

Biochar, Journal Year: 2022, Volume and Issue: 4(1)

Published: March 15, 2022

Abstract Biochar shows significant potential to serve as a globally applicable material remediate water and soil owing the extensive availability of feedstocks conducive physio-chemical surface characteristics. This review aims highlight biochar production technologies, characteristics biochar, latest advancements in immobilizing eliminating heavy metal ions organic pollutants water. Pyrolysis temperature, heat transfer rate, residence time, type feedstock are critical influential parameters. Biochar’s efficacy managing contaminants relies on pore size distribution, groups, ion-exchange capacity. The molecular composition physical architecture may be crucial when practically applied soil. In general, produced at relatively high pyrolysis temperatures can effectively manage via increasing area, hydrophobicity microporosity. generated lower is deemed more suitable for removing polar inorganic through oxygen-containing functional precipitation electrostatic attraction. also presents existing obstacles future research direction related biochar-based materials effluents Graphical

Language: Английский

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High surface area and mesoporous activated carbon from KOH-activated dragon fruit peels for methylene blue dye adsorption: Optimization and mechanism study

Chinese Journal of Chemical Engineering, Journal Year: 2020, Volume and Issue: 32, P. 281 - 290

Published: Dec. 31, 2020

Language: Английский

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Bismuth oxychloride-based materials for the removal of organic pollutants in wastewater

Chemosphere, Journal Year: 2020, Volume and Issue: 273, P. 128576 - 128576

Published: Oct. 9, 2020

Language: Английский

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Synthesis and fabrication of g-C3N4-based materials and their application in elimination of pollutants

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 731, P. 139054 - 139054

Published: May 5, 2020

Language: Английский

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Modified biochar: synthesis and mechanism for removal of environmental heavy metals

Carbon Research, Journal Year: 2022, Volume and Issue: 1(1)

Published: June 18, 2022

Abstract With social progress and industrial development, heavy metal pollution in water soils environment is becoming more serious. Although biochar a low-cost environmentally friendly adsorbent for ions, its adsorption immobilization efficiency still need to be improved. As an upgraded version of biochar, modified has attracted extensive attention the scientific community. This review summarized recent research on treatment methods pollutants using biochar. The features advantages modification techniques such as physical modification, chemical biological other categories were discussed. mechanism removing metals from soil by was summarized. It found that had better performance after which provided higher surface areas functional groups, enough binding sites combine ions. Biochar very promising candidate environment. Furthermore, some high valent ions could reduced low metals, Cr(VI) reduction Cr(III), form precipitates in-situ sorption-reduction-precipitation strategy. However, it direction efforts develop high-efficiency with low-cost, sorption capacity, photocatalytic performance, no secondary future.

Language: Английский

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Recent advances in applications of low-cost adsorbents for the removal of heavy metals from water: A critical review

Separation and Purification Technology, Journal Year: 2021, Volume and Issue: 278, P. 119510 - 119510

Published: Aug. 21, 2021

Language: Английский

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Challenges of organic pollutant photocatalysis by biochar-based catalysts

Biochar, Journal Year: 2021, Volume and Issue: 3(2), P. 117 - 123

Published: May 26, 2021

Language: Английский

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Highly efficient removal of thallium in wastewater by MnFe2O4-biochar composite

Journal of Hazardous Materials, Journal Year: 2020, Volume and Issue: 401, P. 123311 - 123311

Published: June 25, 2020

Language: Английский

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