Investigation of Bivalve Molluscan Seashells for the Removal of Cadmium, Lead and Zinc Metal Ions From Wastewater Streams

Mahendra, Ch.; Sivakiran, R.R.; Badrinarayana, K.A.; Priya, Lakshmi; Raj, S.Thiravia; Mamatha, M.

doi:10.31788/rjc.2020.1325617

Cited by 3 publications

(2 citation statements)

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“…The combined spectra around 711 cm −1 could also consist of the peak corresponding to the CaO content presented on the shells [ 38 ]. These surface functional groups of the adsorbent could potentially interact with Cu(II) and Zn(II) ions during its sorption onto the shell surface [ 40 ]. In addition, the peak approximately at 550 cm −1 corresponding to the presence of CuO structure was also observed in the UVS samples after being adsorbed by Cu(II) from aqueous solutions [ 41 ].…”

Section: Resultsmentioning

confidence: 99%

Adsorption kinetics and isotherms of binary metal ion aqueous solution using untreated venus shell

Khamwichit

Dechapanya

2022

Heliyon

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Section: Resultsmentioning

confidence: 99%

Adsorption kinetics and isotherms of binary metal ion aqueous solution using untreated venus shell

Khamwichit

Dechapanya

2022

Heliyon

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“…Helen et al [49] chose clams and oysters as research objects, and the experimental treatment method was similar to that of Mike Masukume et al [47]. The seashell powders with a particle size range of 0.125-0.25 mm were mixed with the metal salt, and stirred evenly at room temperature.…”

Section: Initial Concentration Of Pollutantsmentioning

confidence: 99%

Research Progress on the Applications of Seashell Adsorption Behaviors in Cement-Based Materials

Xin

Wang

et al. 2023

Buildings

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The use of seashells to replace traditional cement-based materials and study their adsorption capacity for pollutants can expand the functional engineering application range of cement-based materials. A large amount of seashell waste is produced in coastal areas every year. How to deal with and utilize this seashell waste is a common problem faced by coastal countries and regions. This paper first reviews the principles of adsorption kinetics and adsorption isotherms to demonstrate the adsorption mechanism of shell materials. Then the effects of pH, contact time, temperature, pollutant concentration and other factors on the adsorption of heavy metal ions and basic dyes to seashells are discussed. Finally, the relevant applications of seashells in the construction field are reviewed. The results showed that the optimal pH value in the process of seashell adsorption was 5–7, the active site on the surface of the seashell particles was limited, and that it would reach saturation at a certain concentration, but would not further increase with the increase of time. The active site area of the seashell would increase with the decrease of particle size, so the selection of seashell powder with small particle size was conducive to enhancing the absorption capacity and removal efficiency. The experimental use of seashells instead of cementitious materials or natural aggregates in cement-based materials showed good adsorption capacity and would have a wide range of application prospects in permeable concrete and architectural coatings. By analyzing the research progress on factors influencing seashell adsorption performance and the applications of seashell adsorption behaviors in cement-based materials, this paper could provide ideas and methods for the design of functional cement-based adsorption materials from multiple angles.

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Pb removal from water by three types of biofilters

Bordon¹,

Campos²,

Miyai³

et al. 2022

Journal of Trace Elements and Minerals

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Investigation of Bivalve Molluscan Seashells for the Removal of Cadmium, Lead and Zinc Metal Ions From Wastewater Streams

Cited by 3 publications

References 0 publications

Adsorption kinetics and isotherms of binary metal ion aqueous solution using untreated venus shell

Adsorption kinetics and isotherms of binary metal ion aqueous solution using untreated venus shell

Research Progress on the Applications of Seashell Adsorption Behaviors in Cement-Based Materials

Pb removal from water by three types of biofilters

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