Removal of hexavalent chromium from aqueous solution using ostrich feathers amended by polyaniline

Hosseini, Seyed Ali; Samani, Majid Riahi; Toghraie, Davood

doi:10.1016/j.jmrt.2021.08.041

Cited by 17 publications

(2 citation statements)

References 54 publications

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“…This may be due to the high initial availability of binding sites for adsorption. After attaining equilibrium, the expulsion of Cr(VI) may have become insignificant because of the unavailability of adsorbing sites [26].…”

Section: X-ray Diffraction (Xrd) Studiesmentioning

confidence: 99%

Bio-Stimulated Adsorption of Cr(VI) from Aqueous Solution by Groundnut Shell Activated Carbon@Al Embedded Material

Vaddi¹,

Gurugubelli²,

Koutavarapu

et al. 2022

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In this study, a low-cost bioadsorbent aluminum metal blended with groundnut shell activated carbon material (Al-GNSC) was used for Cr(VI) adsorption from aqueous solutions. Al-GNSC was prepared and characterized using Fourier transform infrared spectrometer (FT-IR), scanning electron microscopic (SEM) and X-ray diffraction (XRD) to determine its surface morphology. Batch studies were performed and the optimum conditions for maximum Cr(VI) removal (of 94.2%) were found at pH 4.0, initial concentration 100 mg/L, adsorbent dosage 8 g/L of Cr(VI) solution, and time of contact 50 min. Moreover, the Langmuir isotherm model (maximum adsorption capacity of 13.458 mg/g) was the best fit and favored the mono-layered Cr(VI) adsorption. The kinetic studies reveal that the pseudo-second-order model was the best fit and favored chemisorption as the rate-limiting step. The desorption study revealed that Cr(VI) leached with sodium hydroxide solution acted as a regenerating agent. It is proved that Al-GNSC removes the Cr(VI) content in groundwater samples. The methodology developed using the Al-GNSC adsorbent as an alternative for the adsorption of Cr(VI) ions is remarkably successful in this study.

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Section: X-ray Diffraction (Xrd) Studiesmentioning

confidence: 99%

Bio-Stimulated Adsorption of Cr(VI) from Aqueous Solution by Groundnut Shell Activated Carbon@Al Embedded Material

Vaddi¹,

Gurugubelli²,

Koutavarapu

et al. 2022

Catalysts

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“…Esta composición característica confiere a las plumas, la capacidad de eliminar eficientemente diversos contaminantes presentes en soluciones acuosas, destacándose especialmente en la eliminación de metales pesados, como indican los hallazgos de la investigación de Moon & Palaniandy, (2019). Hosseini et al (2021) llevaron a cabo una investigación centrada en las plumas de diferentes aves, como pollo, avestruz y pavo. Se exploraron los compuestos sintetizados a partir de estas plumas, especialmente aquellas de avestruz combinadas con polianilina, con el propósito de remover el cromo hexavalente de soluciones acuosas.…”

Section: Introductionunclassified

Uso De Plumas De Pollo Como Medio Filtrante Para La Remoción De Metales Pesados en Aguas Ácidas

Rosario Polo Salazar,

Myriam Figueroa Cruz,

Mario Leyva Collas

et al. 2023

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Esta investigación tuvo como objetivo utilizar las plumas de pollo como un medio filtrante para remover los metales de aguas ácidas. La muestra inicial antes del filtrado y las muestras obtenidas al final de cada filtración fueron medidas con espectrofotómetro de absorción atómica. Los resultados muestran que las plumas de pollo retienen los metales, hasta 20 filtraciones, obteniéndose una remoción final de 94,2 % de aluminio, 93,3 %, cobre, 98 %, cromo, 97,8 %, hierro, 99 %, manganeso y 98 %, plomo. Las concentraciones finales de metales estuvieron por debajo de los límites máximos permisibles (LMP), con excepción del cromo, cuyo valor estuvo en el borderline y el plomo, por encontrarse por encima de los LMP según OMS. Se concluye que las plumas de pollo por la propiedad de adsorción retienen los metales del agua ácida, permitiendo de esta manera la remoción de metales.

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A review of the treatment technologies for hexavalent chromium contaminated water

et al. 2023

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Removal of hexavalent chromium from aqueous solution using ostrich feathers amended by polyaniline

Cited by 17 publications

References 54 publications

Bio-Stimulated Adsorption of Cr(VI) from Aqueous Solution by Groundnut Shell Activated Carbon@Al Embedded Material

Bio-Stimulated Adsorption of Cr(VI) from Aqueous Solution by Groundnut Shell Activated Carbon@Al Embedded Material

Uso De Plumas De Pollo Como Medio Filtrante Para La Remoción De Metales Pesados en Aguas Ácidas

A review of the treatment technologies for hexavalent chromium contaminated water

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