Enhanced lead adsorption by unbleached newspaper pulp modified with citric acid

Pitsari, S.; Tsoufakis, E.; Loizidou, Maria

doi:10.1016/j.cej.2013.02.105

Cited by 57 publications

(30 citation statements)

References 51 publications

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“…The wave numbers at 2908 cm -1 are characteristic of alkaline groups and the band near 1640 cm -1 correspond to bending vibrations of fibres due to the absorbed water. The introduction of additional carboxyl groups to newspaper pulp using CA was further confirmed by characteristic vibration at 1728 cm -1 originating from the C=O stretch of ester carbonyl group and carboxylate ions which was the result of CA esterification [7]. Fig.…”

Section: Fig 1 Ftir Spectra Of Citric-acid Modification Newspapermentioning

confidence: 83%

“…Pitsari et. al [7] showed that Citric Acid-modified newspaper pulp is an effective adsorbent for the removal of Pb 2+ from wastewater. Lignocellulosic materials exhibit high metal removal ability that is attributed to the sorption properties of cellulose and its affinity towards metal ions.…”

Section: Introductionmentioning

confidence: 99%

“…Lignocellulosic materials exhibit high metal removal ability that is attributed to the sorption properties of cellulose and its affinity towards metal ions. Metals interact with the negatively charged functional groups of cellulose such as carbonyls, carboxyl groups, hydroxyls, phenolics and sulfonic acids [7]. Therefore newspaper needs to be modified.…”

Section: Introductionmentioning

confidence: 99%

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Reuse of Newspaper As An Adsorbent For Cu (II) Removal By Citric Acid Modification

2018

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Abstract. High Consumption of paper, bring the impact of the waste paper itself. And the utilization of the paper is limited to recycled products and crafts, whereas paper such as newspaper still contains cellulose that can be potential to be used as a heavy metal adsorbent. In this study, newspaper was dissolved in sodium bicarbonate to reduce various impurities and then was reacted with citric acid (CA). The modified adsorbent was characterized by FTIR and was tested for adsorb Cu(II) in artificial solution. After adsorption process, the solution was filtered and analysed using Atomic Absorption Spectrophotometer (AAS). The adsorption experimental data was fitted to Langmuir, Freundlich, Tempkin, and Dubinin-Radushkevich for equilibrium model and was fitted to pseudo first order reaction and pseudo second order reaction for kinetic studies. The result showed that CA-modification newspaper able to remove heavy metals Cu(II) in solution.

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Section: Fig 1 Ftir Spectra Of Citric-acid Modification Newspapermentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reuse of Newspaper As An Adsorbent For Cu (II) Removal By Citric Acid Modification

2018

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“…De acuerdo con el procedimiento realizado por Lara et al [16], inicialmente se lavaron las cáscaras con agua destilada para retirar taninos, resinas de azúca-res reductoras y demás impurezas superficiales que puedan interferir en el proceso de adsorción; posteriormente, el material fue secado en un horno Esco, Modelo Isotherm®OFA-32-8 a 100˚C durante 24 h, por último se redujo el tamaño en un molino de cuchillas marca Corona durante 20 min y se clasificó el tamaño con un tamiz tipo Shaker de acero inoxidable AISI 316 de laboratorio, donde se seleccionó 0,5 mm como tamaño de partícula [21][22][23].…”

Section: Método Preparación Del Bioadsorbenteunclassified

Adsorción competitiva de plomo y niquel sobre cáscara de ñame y bagazo de palma en sistema continuo

TOVAR¹,

MERCADO²,

MOSCOTE³

et al. 2018

BSAA

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“…Carbón activado a partir de Escherichia coli y carbón activado a partir de Arthrobacter viscous [65], [66] Carbón activado a partir de cáscara de naranja [67] Carbón activado a partir de cáscara de coco [68] Modificación Químicas Biomasa reticulada con glutaraldehído [69], [70] Biomasa reticulada con cloruro de calcio [70], [71] Biomasa modificada con ácido cítrico [72], [73] Otros materiales Arena [74] Zeolita [75], [76] Cenizas volantes [77] En la Tabla 6, se establecen algunas ventajas y desventajas que presentan las biomasas vivas y muertas en el proceso de adsorción de metales pesados [27], [29], [78].…”

Section: Organismos Vivosunclassified

Adsorción de metales pesados en aguas residuales usando materiales de origen biológico

Tejada-Tovar

Garcés-Jaraba

2015

TecnoL.

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Adsorción de metales pesados en aguas residuales usando materiales de origen biológicoAdsorption of heavy metals in waste water using biological materialsCandelaria Tejada-Tovar 1 , Ángel Villabona-Ortiz 2 y Luz Garcés-Jaraba 3Recibido: 10 de junio de 2014, Aceptado: 26 de octubre de 2014Cómo citar / How to cite C. Tejada-Tovar, A. Villabona-Ortiz y L. Garcés-Jaraba, "Adsorción de metales pesados en aguas residuales usando materiales de origen biológico", Tecno Lógicas, vol. 18, no. 34, pp. 109-123, 2015 ResumenLa bioadsorción es un proceso que permite la captación activa o pasiva de iones metálicos, debido a la propiedad que diversas biomasas vivas o muertas poseen para enlazar y acumular este tipo de contaminantes por diferentes mecanismos. La aplicación de materiales de bajo costo obtenidos a partir de diferentes biomasas provenientes de la flora microbiana, algas y residuos agroindustriales ha sido investigada para reemplazar el uso de métodos convencionales en la remoción de contaminantes, tales como los metales pesados. Entre los metales de mayor impacto al ambiente por su alta toxicidad y difícil eliminación se encuentran el cromo, níquel, cadmio, plomo y mercurio. En el presente trabajo se estudian las generalidades de la adsorción como proceso alternativo para la remoción de contaminantes en solución y las biomasas comúnmente usadas en estos procesos, además de algunas de las modificaciones realizadas para la mejora de la eficiencia de adsorción de las mismas. Se concluye que el uso de la adsorción en la remoción de contaminantes en solución acuosa mediante el uso de biomasa residual es aplicable a estos procesos de descontaminación evitando problemas subsecuentes como la generación de lodos químicos, y generando un uso alternativo a materiales considerados como desechos. Se identifica además que factores como el pH de la solución, tamaño de partícula, temperatura y la concentración del metal influyen en el proceso. Palabras claveAdsorción, biosorbentes, efluentes, ion metálico, residual. AbstractBiosorption is a process that allows active or passive uptake of metal ions due to the property that different living or dead biomass have to bind and accumulate these pollutants by different mechanisms. The application of low-cost materials obtained from different biomass from microbial flora, agro-industrial waste and algae has been investigated to replace the use of conventional methods for the removal of contaminants such as heavy metals. Some of the metals of greatest impact to the environment due to its high toxicity and difficult to remove are chromium, nickel, cadmium, lead, and mercury. In this paper, an overview of adsorption as an alternative process for the removal of contaminants in solution and biomass commonly used in these processes, as well as some of the modifications made to improve the efficiency of adsorption of these materials is presented. It was concluded that the use of adsorption in the removal of pollutants in aqueous solution using waste biomass is applicable to these decontaminatio...

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Enhanced lead adsorption by unbleached newspaper pulp modified with citric acid

Cited by 57 publications

References 51 publications

Reuse of Newspaper As An Adsorbent For Cu (II) Removal By Citric Acid Modification

Reuse of Newspaper As An Adsorbent For Cu (II) Removal By Citric Acid Modification

Adsorción competitiva de plomo y niquel sobre cáscara de ñame y bagazo de palma en sistema continuo

Adsorción de metales pesados en aguas residuales usando materiales de origen biológico

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