Utilización de subproductos agroindustriales para la bioadsorción de metales pesados

Sanchez-Silva, Jonathan M.; González-Estrada, Ramsés R.; Blancas‐Benítez, Francisco J.; Fonseca-Cantabrana, Ángel

doi:10.22201/fesz.23958723e.2020.0.261

Cited by 9 publications

(10 citation statements)

References 115 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…La Bioadsrocion va de la mano con la agroindustria dado que la misma genera residuos y subproductos de bajo costo y que son accesibles para todos los tipos de actividades de remoción de metales pesados de los efluentes contaminados, principalmente de los ríos que son los más afectados en la actualidad. Aunque algunos de estos subproductos contienen elementos que pueden son perjudiciales para el medio ambiente como son: hemicelulosa, lignina, lípidos, proteínas, azúcares simples y almidón, que pueden ser contaminantes al ser liberados en las aguas de los ríos (Casas et al, 2014;Sanchez-Silva, 2020).…”

Section: Residuos Agroindustriales Como Materials Bioadsorbenteunclassified

See 1 more Smart Citation

Utilización de subproductos agroindustriales para la bioadsorción de metales pesados

Mesias¹,

Shakai²,

Martínez³

et al. 2022

SEAS

View full text Add to dashboard Cite

Los metales pesados son un grave problema a nivel ambiental debido a sus altos niveles de toxicidad para los organismos con los que interactúen una vez son descargados, para enfrentar este problema se han desarrollado diversos métodos de remoción de estos de los efluentes líquidos. En este trabajo se presentan algunos de ellos, destacando sus virtudes y alcances y se comparan con los bioadsobentes que son adsorbentes no-convencionales que se obtienen de partes de plantas y que no necesariamente deben recibir un tratamiento previo para activarse; sin embargo, su activación mejora su capacidad de adsorción. Se abordan los mecanismos que influyen en el proceso de adsorción, de forma de aclarar las mejores condiciones bajo las cuales actúa. Concluyendo que los bioadsorbentes poseen ventajas sobre los adsorbentes sintéticos con una producción de bajo costo, empleando los residuos agroindustriales que no son aprovechados

show abstract

Section: Residuos Agroindustriales Como Materials Bioadsorbenteunclassified

“…También se pueden utilizar fuentes biológicas vivas, como plantas que pueden adsorber los metales pesados sin que les afecte la toxicidad. Generalmente se usan cuando hay una baja concentración de metales(Sanchez-Silva et al, 2020).…”

unclassified

Utilización de subproductos agroindustriales para la bioadsorción de metales pesados

Mesias¹,

Shakai²,

Martínez³

et al. 2022

SEAS

View full text Add to dashboard Cite

show abstract

“…Their application depends on punctual permissible levels of the effluent, the cost of the process, and environmental compatibility. These techniques include sedimentation, filtration, ion exchange, flotation, electrolysis, microbial reduction, bioremediation, and adsorption [10][11][12]. Biosorption is described as the process that occurs when the adsorbate or pollutant is retained on the surface of the adsorbent (biomaterial), creating a molecular or atomic film owing to residual interactions such as Van Der Waals forces or covalent bonds [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…However, several conditions must be considered for the optimal removal of contaminants in addition to the production volume, such as the chemical and physical characteristics of the bioresidues and their operation parameters (pH, contact time, adsorbent dose, particle size, contaminant concentration, temperature, adsorption kinetics, and isothermal behavior). pH is one of the most important parameters, as it can improve or weaken removal efficiency by affecting the solubility of metal ions as well as the physical properties, structure, and availability of active sites on the surface of the adsorbent [11,15,16]. A high adsorbent dosage provides a higher number of active sites, and consequently increases the adsorption capacity until equilibrium is reached at which an excess adsorbent does not further improve removal efficiency [15].…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of Bioadsorbents Derived from Different Agricultural Wastes for Water Reclamation: A Review

et al. 2022

View full text Add to dashboard Cite

The presence of dangerous pollutants in different water sources has restricted the availability of this natural resource. Thus, the development of new low-cost and environmentally-friendly technologies is currently required to ensure access to clean water. Various approaches to the recovery of contaminated water have been considered, including the generation of biomaterials with adsorption capacity for dangerous compounds. Research on bioadsorbents has boomed in recent years, as they constitute one of the most sustainable options for water treatment thanks to their abundance and high cellulose content. Thanks to the vast amount of information published to date, the present review addresses the current status of different biosorbents and the principal processes and characterization methods involved, focusing on base biomaterials such as fruits and vegetables, grains and seeds, and herbage and forage. In comparison to other reviews, this work reports more than 60 adsorbents obtained from agricultural wastes. The removal efficiencies and/or maximum adsorption capacities for heavy metals, industrial contaminants, nutrients and pharmaceuticals are presented as well. In addition to the valuable information provided in the literature investigation, challenges and perspectives concerning the implementation of bioadsorbents are discussed in order to comprehensively guide selection of the most suitable biomaterials according to the target contaminant and the available biowastes.

show abstract

“…Biosorption is a physical method in which the adsorbates, pollutants in ionic state present in the liquid phase (wastewater), interact with the adsorbent (biological material) the solid phase in which the sorbates accumulate [ 23 ]. In this process, the physisorption and/or chemisorption processes are immersed; for the first, the types of binding forces are Van der Waals, with relatively low sorption heat (10 kJ·mol −1 –40 kJ·mol −1 ), very low activation energy, and is fully reversible (desorption of the adsorbate occurs due to the decrease in the activity of the adsorbent on the fluid surrounding the surface).…”

Section: Introductionmentioning

confidence: 99%

Desorption of Coffee Pulp Used as an Adsorbent Material for Cr(III and VI) Ions in Synthetic Wastewater: A Preliminary Study

et al. 2022

View full text Add to dashboard Cite

Some of the diverse agro-industrial waste generated in primary or secondary stages have proved to be promising biomaterials for treating aqueous effluents contaminated, in this case, with heavy metals. Therefore, it is necessary to know their optimal operating conditions and the regeneration or reusability of the solid by-product, an aspect related to desorption. Considering the above, this article presents the findings of a preliminary study related to the desorption process of coffee pulp without physicochemical modification (Castilla variety), an agricultural waste used as a sorbent of Cr(III and VI) ions in synthetic wastewater. The desorption efficiency of four eluting agents at defined concentrations (0.10M)—HC1, HNO3, H2SO4, and EDTA—was evaluated in a time interval of 1 to 9 days. Likewise, the proposals for the sorption and/or desorption mechanisms proposed and reported in the literature with respect to the use of biosorbents derived from the coffee crop are presented. With respect to the results, the coffee pulp used in previous studies of the adsorption of chromium species mentioned (optimal conditions in synthetic water of particle size 180 μm, dose 20 g·L−1, agitation 100 RPM, room temperature, time of 90 to 105 min) showed efficiencies in the removal of Cr(III) and Cr(VI) of 93.26% and 74.80%, respectively. Regarding the extracting substances used, H2SO4 0.10 M was the one that presented the highest desorption percentage in both chromic species, with a desorption of 45.75% Cr(VI) and 66.84% Cr(III) in periods of 5 and 9 days, respectively, with agitation of 100 RPM and room temperature. Finally, the dissemination of preliminary results on the desorption of coffee pulp contaminated with chromic species without physicochemical modification is novel in this study, as similar work with this specific material has not yet been reported in the literature. On the other hand, the limitations of the study and future research are related to the evaluation at different concentrations and of other extractor solutions that allow improving the efficiency of desorption of these chemical species in a shorter time from the coffee pulp (with and without modification) as well as the reuse cycles. As a result, the desorption of coffee pulp used as an adsorbent material in real water could help researchers identify the possible interfering factors that affect the process (foreign anions and cations, organic matter, environmental conditions, among others).

show abstract

Utilización de subproductos agroindustriales para la bioadsorción de metales pesados

Cited by 9 publications

References 115 publications

Utilización de subproductos agroindustriales para la bioadsorción de metales pesados

Utilización de subproductos agroindustriales para la bioadsorción de metales pesados

Development and Characterization of Bioadsorbents Derived from Different Agricultural Wastes for Water Reclamation: A Review

Desorption of Coffee Pulp Used as an Adsorbent Material for Cr(III and VI) Ions in Synthetic Wastewater: A Preliminary Study

Contact Info

Product

Resources

About