Adsorption in Water Treatment

Bonilla‐Petriciolet, Adrián; Mendoza-Castillo, Didilia I.; Dotto, Guilherme Luiz; Durán‐Valle, Carlos J.

doi:10.1016/b978-0-12-409547-2.14390-2

Cited by 27 publications

(25 citation statements)

References 82 publications

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“…La desorción también permite la recuperación de los contaminantes adsorbidos que pueden clasificarse como productos químicos peligrosos y llevarlos a disposición final o reintegrarlos a los procesos productivos (Bonilla-Petriciolet, Mendoza-Castillo & Reynel, 2017). En general, los subproductos representan un reto importante respecto a su disposición final, esto debido a la capacidad que presentan para generarse y sus efectos en el medio ambiente (Gisi, Lofrano, Grassi & Notarnicola, 2016).…”

Section: Subproductos Agroindustriales Como Materials Bioadsorbenteunclassified

Utilización de subproductos agroindustriales para la bioadsorción de metales pesados

et al. 2020

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La contaminación por metales pesados es un problema que afecta a los ambientes acuáticos y terrestres, y cuya principal fuente son las actividades antrópicas. Para atender este problema, la comunidad científica ha desarrollado métodos físico-químicos para la remoción de metales pesados en efluentes contaminados: sin embargo, la mayoría no son económicamente favorables, ya que presentan elevados costos de operación y mantenimiento, además de que algunos generan residuos difíciles de manejar. Sin embargo, existe un método de bajo costo, altamente eficiente y sin formación de contaminantes secundarios, denominado bioadsorción. La bioadsorción utiliza subproductos agroindustriales con el objetivo de utilizar la excesiva generación de estos residuos como bioadsorbentes, para la remoción de metales pesados en aguas residuales. La utilización de subproductos agroindustriales como bioadsorbentes ha mostrado ser una alternativa para su aprovechamiento, consecuentemente, México tiene potencial en la producción de bioadsorbentes. El objetivo de esta revisión es proporcionar información sistematizada del método de remoción de metales pesados por bioadsorción a través del uso de subproductos agroindustriales.

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Section: Subproductos Agroindustriales Como Materials Bioadsorbenteunclassified

Utilización de subproductos agroindustriales para la bioadsorción de metales pesados

et al. 2020

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“…Langmuir's model assumes monolayer adsorption on a surface containing a finite number of adsorption sites (Garba et al, 2016), where the adsorbent surface is homogeneous with binding sites that are energetically equivalent (Bonilla-Petriciolet et al, 2019). The model is shown below:…”

Section: Biosorption Isothermsmentioning

confidence: 99%

“…where, q m , K L , q e and C e are representing monolayer adsorption capacity (mg/g), Langmuir adsorption constant, biosorption capacity (mg/g) at equilibrium and adsorbate or biosorbent concentration (mg/L) at equilibrium (Bonilla-Petriciolet et al, 2019).…”

Section: Biosorption Isothermsmentioning

confidence: 99%

Cd (II) and Pb (II) biosorption in aqueous solutions using agricultural residues of Phaseolus vulgaris L.: Optimization, kinetics, isotherms and desorption

Salazar-Pinto¹,

Zea-Linares²,

Salas³

et al. 2020

Rev.Mex.Ing.Quim.

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“…Heavy metals are currently one of the main water pollutants. [ 1‐3 ] Mercury ion (Hg 2+ ) is one of the most dangerous metals in water, and its exposition causes harmful health effects in human beings. [ 4,5 ] It is released into aquatic environments from several industrial sectors, such as mining, metallurgy, fossil fuel combustion, and electroplating, among others.…”

Section: Introductionmentioning

confidence: 99%

“…[ 4,5 ] It is released into aquatic environments from several industrial sectors, such as mining, metallurgy, fossil fuel combustion, and electroplating, among others. [ 1,2,6,7 ] The removal of mercury is one of the biggest challenges today, and adsorption is one of the most efficient and low‐cost methods that offers an advantage in design and operation. [ 6,8,9 ] Searching for a selective, novel, and economically efficient adsorbent is an important issue for materials science researchers.…”

Section: Introductionmentioning

confidence: 99%

Toward the design of efficient adsorbents for Hg²⁺ removal: Molecular and thermodynamic insights

Forgionny

Acelas

Jimenez-Orozco

et al. 2020

Int J of Quantum Chemistry

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A systematic DFT study was performed to evaluate the effect of oxygenated functional groups for Hg2+ adsorption in aqueous systems. This work includes several aspects usually neglected in many current works, namely, ground‐state multiplicity, solvation effects, establishment of thermodynamic parameters, atomic charge transfer, and modeling of infrared spectra. In addition, two carbonaceous models were studied to account for both the effect of the carbonaceous matrix and the oxygenated functional groups on the Hg2+ binding. Adsorption energies indicated that Hg2+ adsorption on the unsaturated model is favored in the following order: phenol > lactone > semiquinone > carboxyl, whereas for the saturated model, the Hg2+ adsorption energy decrease order is: carboxyl > semiquinone > lactone. Thermodynamic parameters confirmed that the adsorption process is spontaneous (unsaturated model), while the infrared spectra provided an insight at the atomic level about the experimentally reported bands. Our results contributed to a deeper understanding of the current experimental information on the effect of the surface functional groups on the Hg2+ adsorption over carbonaceous materials as different active sites can be present on oxygenated carbonaceous materials for metal adsorption. The results also create new ways to improve the performance of adsorption capability of mercury and other pollutants.

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Adsorption in Water Treatment

Cited by 27 publications

References 82 publications

Utilización de subproductos agroindustriales para la bioadsorción de metales pesados

Utilización de subproductos agroindustriales para la bioadsorción de metales pesados

Cd (II) and Pb (II) biosorption in aqueous solutions using agricultural residues of Phaseolus vulgaris L.: Optimization, kinetics, isotherms and desorption

Toward the design of efficient adsorbents for Hg²⁺ removal: Molecular and thermodynamic insights

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Adsorption in Water Treatment

Cited by 27 publications

References 82 publications

Utilización de subproductos agroindustriales para la bioadsorción de metales pesados

Utilización de subproductos agroindustriales para la bioadsorción de metales pesados

Cd (II) and Pb (II) biosorption in aqueous solutions using agricultural residues of Phaseolus vulgaris L.: Optimization, kinetics, isotherms and desorption

Toward the design of efficient adsorbents for Hg2+ removal: Molecular and thermodynamic insights

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Product

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Toward the design of efficient adsorbents for Hg²⁺ removal: Molecular and thermodynamic insights