Biosorption of copper ions with olive pomace and walnut shell

Sepúlveda, Patricio; Pavez, Osvaldo; Tume, Pedro; Sepúlveda, Bernardo

doi:10.1007/s10653-022-01303-y

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…The pH value of the aqueous phase is the most important factor in both cation and anion adsorption, the effect being different in both cases. Thus, while the adsorption of cations is usually favored for pH values higher than 4.5, the adsorption of anions prefers a low value of pH, between 1.5 and 4 (Sepulveda et al, 2022). Particle size effect adsorption takes place mainly inside the particles, on the pore walls at specific points.…”

Section: Introductionmentioning

confidence: 99%

Study of the hydraulic correlation in the removal of pollutants from synthetic wastewater by means of a filter with Musa Paradisiaca

Mendoza

Rojas²,

Cunduri³

et al. 2023

F1000Res

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Background: The objective of this work was to decontaminate synthetic sewage from fouracid blue (BRL) dye, with characteristics similar to those of the textile industry, to determine the correlation between flow rate, permeability and removal of hexavalent chromium (Cr+ 6), Cupper (Cu), chemical oxygen demand COD and color using Paradise Muse filter bed. Methods: three concentrations of BRL synthetic wastewater were prepared, determining the initial concentrations of Color, pH, COD, Cr +6 and Cu. In addition, the hydraulic characteristics of the fiber were determined in four types of fiber cut. The synthetic wastewater was filtered in a filtration cell with the three fiber cuts, using three speeds, the time used for these tests was 180 minutes. Water samples were collected every 5 minutes and then analyzed in the laboratory. Simple exponential smoothing was performed on the data obtained, and the statistical analysis of variance ANOVA of 2 factors. Results: The results show that flow velocity and permeability are correlated with color removal, COD and Cr+ 6, determining that the best treatment was to use 1 cm fiber and high flow velocity in which 77.92% and 70.01% for color and COD respectively. In contrast, for Cr+ 6 the best treatment was fiber at 1 cm and low flow velocity removing up to 80% of the concentration of this contaminant and for Cu the best treatment was fiber at 3 cm and low flow velocity removing up to 88.69%. Conclusions: It was determined that the Musa Pardisiaca fiber is capable of absorbing contaminants, but the effectiveness of the treatment depends on the initial conditions of the synthetic water, the cut of the fiber and the velocity. In addition, it is important to mention that, in order to lower heavy metal concentrations, low flow rates should be used.

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Section: Introductionmentioning

confidence: 99%

Study of the hydraulic correlation in the removal of pollutants from synthetic wastewater by means of a filter with Musa Paradisiaca

Mendoza

Rojas²,

Cunduri³

et al. 2023

F1000Res

View full text Add to dashboard Cite

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Carboxymethyl Inulin Modified Chitosan Composites for Cu (II) Removal in Aqueous Solution: Synthesis, Influencing Factors and Adsorption Mechanism

Li,

Hao,

Zeng

et al. 2024

J Polym Environ

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Walnut shells as a potential biosorbent for Cu(II), Pb(II) and As(III)/(V) ions removal from river waters

Nujkic,

Tasic,

Medic

et al. 2023

Acta per tech

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In this study, the potential of the walnut shell as a biosorbent for biosorption of Cu(II), Pb(II), and As(III)/(V) ions from river water samples was investigated. The effects of various conditions of water samples such as the initial ion concentration, sample pH, and contact time at a constant temperature and biosorbent dosage, on biosorption of Cu(II), Pb(II), and As(III)/(V) were investigated. Walnut shells, as the material with a high potential for removal of investigated ions, have biosorption efficiency of up to 99.6%, under the applied experimental conditions. The best adsorption time was obtained at 4 h for Cu(II), Pb(II), and As(III)/(V) ions. The maximum removal of 97.6% (Cu(II)), 82.9% (Pb(II)), and 99.6% (As(III)/(V)) was obtained at pH=4.43, pH=8.55, and pH=7.84, respectively. Hence, the walnut shell shows potential of a cost-effective biosorbent that could be used for the treatment of contaminated rivers. However, further investigation is needed to fully explore this potential.

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Biosorption of copper ions with olive pomace and walnut shell

Cited by 3 publications

References 20 publications

Study of the hydraulic correlation in the removal of pollutants from synthetic wastewater by means of a filter with Musa Paradisiaca

Study of the hydraulic correlation in the removal of pollutants from synthetic wastewater by means of a filter with Musa Paradisiaca

Carboxymethyl Inulin Modified Chitosan Composites for Cu (II) Removal in Aqueous Solution: Synthesis, Influencing Factors and Adsorption Mechanism

Walnut shells as a potential biosorbent for Cu(II), Pb(II) and As(III)/(V) ions removal from river waters

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