Synthesis of Fe<sub>2</sub>O<sub>3</sub>-coated and HCl-treated bauxite ore waste for the adsorption of arsenic (III) from aqueous solution: Isotherm and kinetic models

Venkatesan, G.; Narayanan, Saravanan

doi:10.1080/00986445.2017.1370708

Cited by 16 publications

(9 citation statements)

References 47 publications

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“…Such techniques include neutralization (Litynska et al 2017;Leiva et al 2018;Igarashi et al 2020), chemical precipitation, adsorption (Mukhopadhyay et al 2017;He et al 2019), bioremediation (Yang et al 2017;Alam & McPhedran 2019;Shabbir et al 2020), ion exchange (Moreira et al 2021), electrodialysis (Ortega et al 2017;Aliaskari & Schafer 2021), reverse osmosis (Corroto et al 2019) and nanotechnology (Deng et al 2020;Lv et al 2020;Ullah et al 2020). Currently, iron and aluminium based adsorbents such as bauxite are also being employed to remove arsenic from wastewater (Bhakat et al 2006;Ayoob et al 2007;Giles et al 2011;Lockwood et al 2014;Nicomel et al 2015;Venkatesan & Narayanan 2017).…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

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Enhanced arsenic removal using lateritic bauxite modified by heating and blending

Anang

Tei

Aduboffour³

2022

Water Science and Technology

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The use of bauxite to remove arsenic from wastewater has been confirmed to be effective, but its removal efficiency in literature is not up to 90%, hence, the need to devise a more effective method to remove arsenic from wastewater. In this study, a novel material was prepared by thermally modifying and blending yellow and red lateritic bauxite to form thermally modified and blended yellow and red lateritic bauxite (TYB + TRB). The adsorption isotherm, morphology and chemical composition of the novel material were determined by the Langmuir and Freundlich models, Scanning Electron Microscopy (SEM) and X-ray Fluorescence (XRF), respectively. Application of the novel material in arsenic removal resulted in >97% removal efficiency within 60 min. The arsenic adsorption by TYB + TRB conformed to the Freundlich model. The SEM image depicted a compacted earth material after use of the TYB + TRB to remove arsenic from the wastewater. The XRF results also showed a drastic reduction in the chemical composition of the novel bauxite except Ti, thus suggesting the occurrence of multiple mechanisms during the arsenic removal. This study demonstrated the potential of TYB + TRB to be developed and used as the most suitable material for wastewater treatment.

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Section: Graphical Abstract Introductionmentioning

confidence: 99%

“…Previous studies have focused on the use of bauxite to remove arsenic (Debasish et al 2008;Castaldi et al 2010;Sahu et al 2010;Venkatesan & Narayanan 2017;Ndur et al 2019). For instance, Ndur et al (2019) examined the use of bauxite as an arsenic filter.…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

Enhanced arsenic removal using lateritic bauxite modified by heating and blending

Anang

Tei

Aduboffour³

2022

Water Science and Technology

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“…Many countries have already adopted rules limiting the arsenic content in drinking water to 0.01 mg/L, as recommended by WHO and ESEPA [20,21]. A large number of arsenic water treatment methods have been proposed such as oxidation and precipitation [22], coagulation [23], co-precipitation [24], the use of membranes and reverse osmosis [25], electrolysis [26] and ion exchange resins [27].…”

Section: Introductionmentioning

confidence: 99%

Obtaining of Maghemite Containing Red Mud for Effective As(V) Adsorption

Shoppert

Логинова

Rogozhnikov

2020

Kms

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This paper describes the studies of the use of red muds as adsorbents for cleaning solutions from As(V). The red mud is a waste that contains a large amount of iron oxides and hydroxides, which are excellent adsorbents of arsenic, especially those possessing magnetic properties and large specific surface area. The purpose of the experiment was to study the possibility of obtaining an effective adsorbent by direct extraction of alumina from bauxite using the caustic alkali fusion method and optimization of the process. The main iron-containing phase of the red muds obtained by fusing bauxite with caustic alkali was maghemite, which has a large specific surface area. Arsenic adsorption experiments were carried out using red muds obtained through bauxite alkali fusing at different temperatures and time of fusion, as well as the mass ratio of caustic alkali to bauxite. The red muds obtained by fusing bauxite with caustic alkali at 400∘ C and NaOH to bauxite mass ration 1.5 within 70 minutes have the highest effectiveness removing arsenic. Their As(V) uptake capacity was over than 37 mg/g. Keywords: red mud, maghemite, nanoparticles, As(V) adsorption, optimization

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“…From the various separation methodologies, it appears that ion exchange/adsorption is one of the most widely used procedure for arsenic removal from waters (Ahmad et al, 2017;Inaba et al, 2017;Mal'tseva et al, 2017;Roy et al, 2017;Schouwenaars et al, 2017;Sert et al, 2017;Tavakkoli et al, 2017;Babaee et al, 2018;Kang et al, 2018;Liu et al, 2018;Venkatesan and Narayanan, 2018).…”

Section: Introductionmentioning

confidence: 99%

La eliminación de metales tóxicos presentes en efluentes líquidos mediante resinas de cambio iónico. Parte VIII: Arsénico(III))/OH-/Dowex 1x8

Escudero

2018

REVMETAL

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En el presente trabajo se utiliza la resina de intercambio aniónico para la eliminación de arsénico(III) de medios acuosos. Esta eliminación se ha investigado teniendo en cuenta diversas variables experimentales como son: la velocidad de agitación del sistema, la temperatura, el pH de la disolución y la dosificación de resina al sistema. El equilibrio de intercambio aniónico tiene un carácter endotérmico y no espontaneo, en el rango de temperaturas comprendido entre 20 °C y 60 °C, la cinética del proceso responde al modelo de pseudo-segundo orden, sin embargo, el mecanismo de carga del arsénico en la resina cambia en el rango de temperaturas comprendido entre 20 °C y 40 °C. La isoterma de carga del metal en la resina responde al modelo linearizado de Freundlich. Se comparan los resultados de carga de arsénico en la resina Dowex 1x8 con los obtenidos con otras resinas y con nanotubos de carbono de pared multiple. La elución del arsénico se puede realizar con disoluciones acidas, por ejemplo 1 M HCl.

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Synthesis of Fe₂O₃-coated and HCl-treated bauxite ore waste for the adsorption of arsenic (III) from aqueous solution: Isotherm and kinetic models

Cited by 16 publications

References 47 publications

Enhanced arsenic removal using lateritic bauxite modified by heating and blending

Enhanced arsenic removal using lateritic bauxite modified by heating and blending

Obtaining of Maghemite Containing Red Mud for Effective As(V) Adsorption

La eliminación de metales tóxicos presentes en efluentes líquidos mediante resinas de cambio iónico. Parte VIII: Arsénico(III))/OH-/Dowex 1x8

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Synthesis of Fe2O3-coated and HCl-treated bauxite ore waste for the adsorption of arsenic (III) from aqueous solution: Isotherm and kinetic models

Cited by 16 publications

References 47 publications

Enhanced arsenic removal using lateritic bauxite modified by heating and blending

Enhanced arsenic removal using lateritic bauxite modified by heating and blending

Obtaining of Maghemite Containing Red Mud for Effective As(V) Adsorption

La eliminación de metales tóxicos presentes en efluentes líquidos mediante resinas de cambio iónico. Parte VIII: Arsénico(III))/OH-/Dowex 1x8

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Synthesis of Fe₂O₃-coated and HCl-treated bauxite ore waste for the adsorption of arsenic (III) from aqueous solution: Isotherm and kinetic models