Fixed bed column modeling of lead(II) and cadmium(II) ions biosorption on sugarcane bagasse

Vera, Luisa; Bermejo, Daniel; Uguña, María Fernanda; García, Nancy; Flores, Marittza; Cabrera, E

doi:10.4491/eer.2018.042

Cited by 45 publications

(22 citation statements)

References 29 publications

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“…The results showed that higher sorption capacity was obtained between pH 2 and 5 where lead occurred only as Pb 2+ species up to pH 6.0. This was also achieved in the research work done by [64]. Since HCl was used to adjust pH, it was suggested that there might be lead chloride complexes formation.…”

Section: Speciationmentioning

confidence: 82%

Magnetite Functionalized Nigella Sativa Seeds for the Uptake of Chromium(VI) and Lead(II) Ions from Synthetic Wastewater

Thabede

Shooto

Xaba

et al. 2021

Adsorption Science & Technology

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The aim of the present study was to utilise pristine and magnetite-sucrose functionalized Nigella Sativa seeds as the adsorbents for the uptake of chromium(VI) and lead(II) ions from synthetic wastewater. Prestine Nigella Sativa seeds were labelled (PNS) and magnetite-sucrose functionalized Nigella Sativa seeds (FNS). The PNS and FNS composites were characterized by Fourier-transform infrared spectroscopy (FTIR) and X-ray powder diffraction (XRD). The FTIR analysis of both adsorbents revealed the presence of vibrations assigned to 1749 and 1739 cm-1 (-C=O) for ketonic group for both adsorbents. The amide (-NH) peak was observed at 1533 and 1527 cm-1 on FNS and PNS composites, respectively, whilst the carboxyl group (-COOH) were observed at 1408 cm-1 on both adsorbents. The XRD results of FNS and PNS composites showed a combination of spinel structure and y -Fe2O3 phase confirming the formation of iron oxide. The influence of operational conditions such as initial concentration, temperature, pH, and contact time was determined in batch adsorption system. The kinetic data of Cr(VI) and Pb(II) ions on both adsorbents was described by pseudo-first-order (PFO) model which suggested physisorption process. The sorption rate of Cr(VI) ions was quicker, it attained equilibrium in 20 min, and the rate of Pb(II) ions was slow in 90 min. Freundlich isotherm described the mechanism of Pb(II) ions adsorption on PNS and FNS composites. Langmuir best fitted the uptake of Cr(VI) ions on PNS and FNS. The results for both adsorbents showed that the removal uptake of Pb(II) ions increased when the initial concentration was increased; however, Cr(VI) uptake decreased when the initial concentration increased. The adsorption of Cr(VI) and Pb(II) ions on both adsorbents increased with temperature.

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Section: Speciationmentioning

confidence: 82%

Magnetite Functionalized Nigella Sativa Seeds for the Uptake of Chromium(VI) and Lead(II) Ions from Synthetic Wastewater

Thabede

Shooto

Xaba

et al. 2021

Adsorption Science & Technology

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“…Bio-sorbents generated from agricultural wastes and/or industrial by-products are mostly used for the removal of heavy metals from contaminated effluents. Several bio-sorbents derived from agricultural by-products have been used for treating industrial effluents such as, orange peel [11], banana peel [12,13], potato peel [14], corn cob [15], lemon peel [16], watermelon rind [17], sugarcane bagasse [18], palm leaf, water hyacinth [19], pine saw dust [20], moringa pod [21], hazelnut shell, peanut shells, rice husk [22]. These bio-sorbents contain cellulose, hemicellulose, lignin, lipids, proteins, hydrocarbons and starch, comprising of various functional groups with possibility of sequestration of many pollutants [23,24].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Lead (II) Removal from Wastewater Using Banana Peels: Optimization Study

Afolabi¹,

Musonge²,

Bakare³

2021

Pol. J. Environ. Stud.

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The response surface methodology was used to investigate the removal of Pb (II) from an aqueous solution using banana peel with varying operating parameters in a batch mode. The central composite design was used to study the interactive effects of the operating parameters (initial concentration, pH of the solution, adsorbent dosage and the particle size). The banana peel was characterized by FTIR which showed the functional groups, while SEM and EDS were used to study morphology and elemental composition. The optimum removal of Pb(II) was 98.146 % at initial concentration 100 mg/L, pH 5, adsorbent dosage 0.55 g and particle size 75 µm. The deviation between the experimental and the model predicted percentage removal was 5.17 %. The analysis of variance showed that the regression model was significant with a low probability and the correlation coefficient R 2 value of 0.9153. The results showed that the biosorption of Pb(II) was highly influenced by the pH and the adsorbent dosage, while the particle size had little effect on the biosorption process.

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“…Los métodos y tratamientos habituales son diversos y garantizan la capacidad de remoción; sin embargo, existiendo la posibilidad de reducir costos sin sacrificar eficiencias de remoción, se recurre a métodos o tecnologías económicas y eficaces con bio-adsorbentes [15]. Hay diversos estudios comparativos de bioadsobentes [16] en efluentes mineros [17] en residuos de origen agrícola [18] y de aguas domésticas [19], así como desde microorganismos [20] que son algunos de los bioadsorbentes del futuro [21]. Hay trabajos de absorción de metales pesados mediante bacterias [22], keratina [23] y algas [24] [25].…”

Section: Marco Teóricounclassified

Remoción de metales pesados desde efluentes mineros, mediante cáscaras de frutas.

Livia

Fernandez

Florez

et al. 2020

AiBi Revista de Investigación, Administración e Ingeniería

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El hombre en sus distintos procesos productivos ha generado modificaciones al ambiente. La minería metalúrgica no se exime de esto, ya que muchos de los residuos producidos, en especial los efluentes, no cuentan con ningún tipo de tratamiento antes de ser vertidos. El objetivo de la investigación fue evaluar la eficiencia de remoción del Cu, Fe y Pb del efluente minero-metalúrgicos a escala de laboratorio mediante la aplicación de un filtro bioadsorbente con fibras lignocelulósicas (cáscaras de plátano, coco y naranja). Se diseñó 10 filtros compuestos por cáscaras de plátano, coco y naranja, en diferentes proporciones (siendo 100 gr el 100 %), según lo establecido mediante el Diseño de mezclas Simplex Lattice, con tres metales a remover (Cu, Fe y Pb). Se trabajó a un pH de 7.3, tiempo de contacto de 3 horas y tamaño de partícula de 0.250 mm, en todos los tratamientos. Los resultados muestran que para el Cu el mejor tratamiento fue (T2), con 100 gr de cáscaras de coco (96.36%); para el hierro el tratamiento seis (T6) compuesto por coco-naranja (50 gr de cada uno) con una eficiencia de (92.05%); y el plomo presentó una mayor remoción del 97.34% con los tratamientos tres (T3) y seis (T6) compuesto por 100 gr de naranja y coco-naranja (50 gr de cada uno), respectivamente. Los datos se ajustaron mejor al modelo de regresión cúbica especial, siendo para el cobre el valor P de 0.000305 y el coeficiente de determinación R2 0.790156. Para el hierro, el valor P 0.000000 y coeficiente de determinación R2 0.930029. El valor P del plomo fue de 0.000034 y el coeficiente de determinación R2 0.719867. Considerando que el valor de R2, es mejor mientras más se acerca a 1, y que (p<0,05) es significativo.

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Fixed bed column modeling of lead(II) and cadmium(II) ions biosorption on sugarcane bagasse

Cited by 45 publications

References 29 publications

Magnetite Functionalized Nigella Sativa Seeds for the Uptake of Chromium(VI) and Lead(II) Ions from Synthetic Wastewater

Magnetite Functionalized Nigella Sativa Seeds for the Uptake of Chromium(VI) and Lead(II) Ions from Synthetic Wastewater

Evaluation of Lead (II) Removal from Wastewater Using Banana Peels: Optimization Study

Remoción de metales pesados desde efluentes mineros, mediante cáscaras de frutas.

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