Eggshell as an adsorbent for removing dyes and metallic ions in aqueous solutions

Recent advances on sustainable removal of emerging contaminants from water by bio-based adsorbents

“…Repurposing waste materials such as coffee grounds, fruit peels, and eggshells effectively adsorbed contaminants and heavy metals from water and other industrial effluents in the past, contributing to sustainable waste management and pollution control measures. [61][62][63] Sea materials have been revealed to be good bio-adsorbents, utilizing their inherent capabilities to adsorb pollutants and toxins from numerous sources. These eco-friendly bio-adsorbents provided a sustainable and economical option for water treatment and environmental remediation activities by utilizing materials such as seaweed, seashells, and marine algae.…”

Development of chitosan by using a zeolite‐supported CaO derived from waste chicken eggshell to remove Acid Red 1 dye from the aqueous solution

“…26 Zonato et al utilized solid residue (eggshells) as an adsorbent for dyes, achieving removal efficiencies of 92% for the dyes. 27 The novelty of this work resides in the investigation of the preparation and characterization of ZSM-5 zeolite, which was impregnated in three different proportions with chitosan and eggshell. The objective of this zeolite was to effectively eliminate Acid Red-1 dye from an aqueous solution while subjecting it to variable conditions.…”

“…The removal efficiency of the dye was found to be around 99% 26 . Zonato et al utilized solid residue (eggshells) as an adsorbent for dyes, achieving removal efficiencies of 92% for the dyes 27 …”

Insight into copper and nickel adsorption from aqueous solutions onto carbon-coated-sand: Isotherms, kinetics, mechanisms, and cost analysis

“…To remove these contaminants from the aqueous solution, several chemical, physical, and biological treatment approaches have been applied. Most known treatment methods are costly and frequently produce other harmful wastes ( de Oliveira Zonato et al, 2022 ). Adsorption technology is one of the commonly used treatment methods for heavy metal ions removal.…”

“…Various agricultural, animal, and by-product wastes have been utilized as potential sources for making low-cost absorbents. For example, banana peel ( Dhevagi et al, 2019 ), eggshells ( de Oliveira Zonato et al, 2022 ), rice husk ( Priya et al, 2022 ), olive pomace, orange wastes, rice husks, and compost ( Pellera et al, 2012 ).…”