Comparative Review of Different Adsorption Techniques Used in Heavy Metals Removal in Water
TL;DR: In this article , the authors highlight the present research on heavy metal removal, focusing on adsorbents and techniques accessible and feasible, such as adsorptive separation by substances, including a metal oxide, graphene, zeolite, and carbon-based composites.
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Abstract: The rising shortage of water resources and the need to provide water in many regions like Morocco around the world has been crucial and will become increasingly alarming in the future. Water bodies can be practically polluted or impaired by industrial, agricultural, and anthropogenic waste. Heavy metals are widely known environmental contaminants due to their toxicity, prevalence, and bioaccumulation. They build up in the environment, disrupting the food chains as chronic pollutants. In organisms, including humans, the deposition of possibly hazardous heavy metals poses a significant threat to health. This review paper highlights the present research on heavy metal removal, focusing on adsorbents and techniques accessible and feasible, such as adsorptive separation by substances, including a metal oxide, graphene, zeolite, and carbon-based composites. These techniques received a lot of acknowledgment due to their significant active surface area, high proportion of functional groups, increased chemical and thermal stability, and impressive adsorption efficiency and efficacy. The economic aspects and feasibility of adsorbents have also been presented.
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Citations
Water Quality Degradation Due to Heavy Metal Contamination: Health Impacts and Eco-Friendly Approaches for Heavy Metal Remediation
Peng Zhang,Mingjie Yang,Jingjing Lan,Yan Huang,Jinxi Zhang,Shuangshuang Huang,Yashi Yang,Junjie Ru +7 more
TL;DR: Water quality degradation due to heavy metal contamination poses significant health risks and necessitates remediation. Heavy metal contamination originates from various industrial and domestic activities and affects groundwater and surface water. Contaminated water with high levels of heavy metals leads to various health issues. Eco-friendly approaches for heavy metal remediation include biological methods, which are cost-effective and minimize secondary pollution.
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Adsorptive removal of heavy metals from wastewater using emerging nanostructured materials: A state-of-the-art review
TL;DR: This review comprehensively assesses the adsorptive removal of heavy metals from wastewater using emerging nanostructured materials, including LDHs, CNTs, graphene, MXenes, MOFs, and ZIFs, highlighting their synthesis, adsorption performance, kinetics, and reusability.
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Advancements in Adsorption Techniques for Sustainable Water Purification: A Focus on Lead Removal
Amal M. Badran,Uthumporn Utra,Nor Shariffa Yussof,Mohammed J. K. Bashir +3 more
TL;DR: Advancements in adsorption techniques for sustainable water purification focus on lead removal using starch-based adsorbents. The review explores novel materials and techniques for effective contaminant removal, highlighting surface modifications and regeneration capabilities.
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Recent progress in γ-Fe2O3-based catalysts: An overview of the synthesis and applications in environmental remediation
Yuzhuo Zhou,Xin Ling Yang,Chen Gong,Fei Zhu,Jian Wang,Yongfeng Qi,Kai Huang,Jiang Wu,Ran Chen,Yi Liu +9 more
TL;DR: This review summarizes recent progress in γ-Fe2O3-based catalysts, focusing on synthesis methods, modification strategies, and applications in environmental remediation, including pollutant degradation, wastewater purification, and heavy metal treatment.
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Fractal-like kinetics for adsorption of Pb (II) on graphene oxide/hydrous zirconium oxide/crosslinked starch bio-composite: Application of Taguchi approach for optimization
TL;DR: In this article , the decontamination of Pb (II) from aqueous environment using graphene oxide/hydrous zirconium oxide/crosslinked starch bio-composite (GZS-BC) was dealt with.
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