Adsorption test using ultra-fine materials on heavy metals removal

Wibowo, Yudha Gusti; Safitri, Hana; Ramadan, Bimastyaji Surya; Sudibyo,

doi:10.1016/j.biteb.2022.101149

Cited by 19 publications

(9 citation statements)

References 47 publications

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“…Adsorption isotherms play a vital role in interpreting the mechanism of metal ion adsorption onto different adsorbents [42]. These models shed light on the surface properties of adsorbents and the intermolecular interactions between adsorbed molecules and the adsorbent matrix [43]. Isotherm and kinetic models contribute to understanding the adsorption process, relying on various factors, including the adsorbent's structure and the physical and chemical characteristics of the solute [42].…”

Section: Equilibrium Modelsmentioning

confidence: 99%

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

Raji,

Karim,

Karam

et al. 2023

Waste

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

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Section: Equilibrium Modelsmentioning

confidence: 99%

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

Raji,

Karim,

Karam

et al. 2023

Waste

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“…The highest removal amount of Cr(III) obtained with pH raising suggests that the main biosorption mechanism can be attributed to the electrostatic attractions due to the deprotonation effect by the hydroxylic ions. Regarding the effect of contact time, it can be noted that the biosorption capacity of Cr(III) increased due to the abundance of active sites easily accessible by Cr(III) ions [36].…”

Section: Matrix Of Experiences and Resultsmentioning

confidence: 99%

Optimization of Chromium(III) Sorption by Activated Sludge Using Response Surface Methodology

et al. 2023

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The removal process of Cr(III) in aqueous solution using activated sludge as adsorbent was optimized. Response surface methodology was employed to assess the removal efficiency considering the cumulative effect of pH and contact time. The quantitative relationship between Cr(III) uptake and variable parameters was used to optimize the control level of each parameter by a full factorial design method. The analysis of variance demonstrates that the model was statistically highly significant, which shows also that the removal of Cr(III) was affected by the studied factors. The model was statistically tested and verified by experimentation. The response surface methodology gives not only valuable information on interactions between the evaluated parameters but also allows identifying the optimum values of the studied factors.

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“…This fact underscores the need for wastewater treatment studies to remediate the multitude of heavy metals in the aqueous matrix. Numerous techniques have been used to remove heavy metals such as flotation, electrolysis, coagulation and flocculation, chemical precipitation method, ion exchange, membrane filtration, oxidation method, microbial fuel cell, adsorption, and biosorption . The merits and demerits of the above-mentioned methods are explained in Table .…”

Section: Various Treatment Methodsmentioning

confidence: 99%

“…Numerous techniques have been used to remove heavy metals such as flotation, 44 electrolysis, 45 coagulation and flocculation, 46 chemical precipitation method, 47 ion exchange, 48 membrane filtration, 49 oxidation method, 50 microbial fuel cell, 51 adsorption, 52 and biosorption. 53 The merits and demerits of the abovementioned methods are explained in Table 3.…”

Section: Various Treatment Methodsmentioning

confidence: 99%

A Critical Review on the Sustainable Approaches for the Removal of Toxic Heavy Metals from Water Systems

Carolin

Kamalesh

Kumar³

et al. 2023

Ind. Eng. Chem. Res.

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Heavy metal pollution results in enormous environmental impacts and significant human health problems. Because of their extreme toxicity and lack of biodegradability, heavy metal ions in water are considered problematic. Although the removal of various heavy metal ions from wastewater has been widely investigated, heavy metal contamination still requires effective and suitable remediation. With special attention on heavy metal removal, this study reviews recent advances, breakthroughs, and potential applications of various physical, chemical, and biological methods. Each treatment method has specific mechanisms of interaction with metal ions, which are described in this review. The discussion in this review leads to the conclusion that adsorption has the best potential which leads to the sustainable remediation of heavy metals. In summary, the review provides a new perspective on heavy metal reduction and encourages the development of innovative strategies for heavy metal removal. The main current problems and prospects in this field are highlighted in this review.

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Adsorption test using ultra-fine materials on heavy metals removal

Cited by 19 publications

References 47 publications

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

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

Optimization of Chromium(III) Sorption by Activated Sludge Using Response Surface Methodology

A Critical Review on the Sustainable Approaches for the Removal of Toxic Heavy Metals from Water Systems

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