Listar por autor "Villén-Guzmán, María Dolores"
Mostrando ítems 21-40 de 48
-
Incentivizing student participation in QAS questionnaires: an evaluation of a guaranteed prize system at the University of Malaga
Vereda-Alonso, Cristina
; Cerrillo-González, María del Mar; Gómez-Lahoz, César; Villén-Guzmán, María Dolores; Vereda-Alonso, Carlos (MDPI, 2024-02-21)
This paper investigates the effects of a guaranteed prize incentive, in the form of an extra score, on student engagement in the quality assurance system (QAS) questionnaires employed for evaluating teaching performance ... -
Incentivizing Student Participation in QAS Questionnaires: An Evaluation of a Guaranteed Prize System at the University of Malaga.
Vereda-Alonso, Cristina; Cerrillo-González, María del Mar; Gómez-Lahoz, César; Villén-Guzmán, María Dolores; Vereda-Alonso, Carlos (MPDI, 2024-02-21)
This paper investigates the effects of a guaranteed prize incentive, in the form of an extra score, on student engagement in the quality assurance system (QAS) questionnaires employed for evaluating teaching performance ... -
Influence of alkalinity addition on biomethanization of fruit and vegetable waste and sewage sludge performance. Batch study
Arhoun, Brahim; Villén-Guzmán, María Dolores; Bakkali, A.; El Mail, R.; Rodríguez-Maroto, José Miguel; Gómez-Lahoz, César[et al.] (2014-10-30)
Fruit and vegetable wastes (FVW) are generated in large quantities around the world. This kind of residue constitutes a source of nuisance in municipal landfills because of its high biodegradability. Their high moisture ... -
Influence of chemical reaction kinetics on electrokinetic remediation modelling results
Masi, Matteo; Paz-García, Juan Manuel; Gómez-Lahoz, César; Villén-Guzmán, María Dolores; Ceccarini, Alessio; Iannelli, Renato[et al.] (2017-10-11)
A numerical model describing transport of multiple species and chemical reactions during electrokinetic treatment is presented. The transport mechanisms included in the model were electromigration and electroosmosis. The ... -
Interpretation of the titration and solubility curves of a soil contaminated by heavy metals using freeware chemical equilibrium speciation software
Gómez-Lahoz, César; García-Herruzo, Francisco; García-Rubio, Ana; Paz-García, Juan Manuel; Villén-Guzmán, María Dolores (Northeastern University, 2013)
The buffer capacity of the soil is one of the most important parameters in assessing the feasibility of different remediation techniques of soils contaminated by heavy metals (washing, flushing, electroremediation, etc.). ... -
Kinetic and thermodynamic studies on biosorption of Ni (II) and Cd (II) by chemically modified lemon peel
Villén-Guzmán, María Dolores; Arhoun, Brahim; Cerrillo-González, María del Mar; Paz-García, Juan Manuel; Rodríguez-Maroto, José Miguel (2020-09-23)
The valorization of agricultural wastes as biosorbent represents a promising circular economy strategy: a waste is applied for the treatment of wastewater containing contaminants. This work is focused on the removal of Ni ... -
Lab scale study of the influence of the acid strength over the performance of an acid-enhanced electrokinetic remediation
Villén-Guzmán, María Dolores; Paz-García, Juan Manuel; García-Delgado, Rafael Antonio; García-Herruzo, Francisco; Arhoun, Brahim; Rodríguez-Maroto, José Miguel[et al.] (Northeastern University, 2013)
It is widely accepted that, when an electrokinetic remediation (EKR) is performed for the cleanup of most toxic metals, an enhancement is needed. During the unenhanced EKR the reactions at the electrodes, probably water ... -
Leaching of LiCoO2 using H2O2 as reductant
Cerrillo-González, María del Mar; Acedo-Bueno, Luis Fernando; Villén-Guzmán, María Dolores; Paz-García, Juan Manuel; Rodríguez-Maroto, José Miguel (2020-09-29)
The growing use of Lithium-Ion batteries (LIBs) in the field of electric vehicles and renewable energy storage entails the production of toxic and environmental hazardous wastes. Furthermore, some components in these ... -
Life cycle assessment of aluminium cans and glass bottles
Luque Calvo, Ana María; Cerrillo-González, María del Mar; Villén-Guzmán, María Dolores; Paz-García, Juan Manuel (2020-09-29)
In this work, we present a simplified LCA on two commom products: an aluminum can and a glass bottle, both containing the same amoung of beverage (1/3 L of beer). The work presented here seeks to find out which option would ... -
A Model for Electrodialytic Treatment of Lithium-Ion Batteries
Paz-García, Juan Manuel; Villén-Guzmán, María Dolores; Cerrillo-González, María del Mar; Gómez-Lahoz, César; Vereda-Alonso, Carlos; García-Delgado, Rafael Antonio; Rodríguez-Maroto, José Miguel[et al.] (2019-10-08)
New recycling processes for secondary batteries are needed to achieve sustainable use of natural resources. Indeed, many components in lithium ion batteries, such as cobalt and graphite, are in the European Union’s ... -
Modeling ionic transport through ion-exchange membranes
Cerrillo-González, María del Mar; Villén-Guzmán, María Dolores; Paz-García, Juan Manuel (2022-06-17)
Electrodialysis (ED) is a membrane separation process in which ions are transferred through selective ion-exchange membranes (IEMs) from one solution to another using an electric field as the driving force. ED is a mature ... -
Modeling of Electrodialytic Desalination of Regenerated Water Effluent with Byproducts Recovery.
Paz-García, Juan Manuel; Olivares-Ligero, Elena; Cerrillo-González, María del Mar; Martinez-Salverri, María José; Rodríguez-Maroto, José Miguel; Villén-Guzmán, María Dolores[et al.] (Jeonju National University, 2024)
Electrodialytic desalination (EDD) is a promising technique for wastewater treatment that leverages an electric field to drive ion movement through ion-exchange membranes, efficiently removing salts and other impurities ... -
Modeling of Electrodialytic Treatment of Lithium-Ion Batteries
Paz-García, Juan Manuel; Villén-Guzmán, María Dolores; Cerrillo-González, María del Mar; Gómez-Lahoz, César; Vereda-Alonso, Carlos; García-Delgado, Rafael Antonio; García-Herruzo, Francisco; Rodríguez-Maroto, José Miguel[et al.] (2019-02-08)
Lithium-ion batteries are currently present in most portable electronic devices and their use is rapidly growing in the field of electric vehicles and renewable energy storage. Many components in lithium-ion batteries are ... -
Modeling of Electrokinetic Remediation Combining Local Chemical Equilibrium and Chemical Reaction Kinetics
Masi, Matteo; Paz-García, Juan Manuel; Gómez-Lahoz, César; Villén-Guzmán, María Dolores; Ceccarini, Alessio; Iannelli, Renato[et al.] (2020-02-24)
A mathematical model for reactive-transport processes in porous media is presented. The modeled system includes diffusion, electromigration and electroosmosis as the most relevant transport mechanism and water electrolysis ... -
Modeling of LiCoO2 leaching reaction using COMSOL multiphysics
Cerrillo-González, María del Mar; Acedo-Bueno, Luis Fernando; Villén-Guzmán, María Dolores; Paz-García, Juan Manuel; Rodríguez-Maroto, José Miguel (2020-09-29)
Currently, the most popular LIBs recycling processes are either pyrometallurgical and hydrometallurgical. Although the former is the most used method on an industrial scale, hydrometallurgical has become a promising process ... -
Multiphysics Modeling of a reversible PEM Electrolyzer & Fuel Cell.
Paz-García, Juan Manuel; Cerrillo-González, María del Mar; Villén-Guzmán, María Dolores; Rodríguez-Maroto, José Miguel (2023)
Electrolyzers are used to produce hydrogen and oxygen from electricity through water electrolysis. If the electricity comes from renewable sources, such as solar energy, the produced hydrogen, denoted as green-H2. Despite ... -
New Perspectives for Electrodialytic Remediation
Villén-Guzmán, María Dolores; Cerrillo-González, María del Mar; Paz-García, Juan Manuel; Gómez-Lahoz, César; Vereda-Alonso, Carlos; García-Delgado, Rafael Antonio; García-Herruzo, Francisco; Rodríguez-Maroto, José Miguel[et al.] (2019-02-08)
Electrodialytic remediation has been widely used for the recovery of different contaminants from numerous matrices, such as, for example, polluted soils, wastewater sludge, fly ash, mine tailing or harbour sediments. The ... -
Production of HCl and LiOH from Lithium-ion Batteries Leaching Solution by Electrodialysis.
Cerrillo-González, María del Mar; Villén-Guzmán, María Dolores; Paz-García, Juan Manuel; Rodríguez-Maroto, José Miguel (2023)
In this work, electrodialysis is proposed to produce HCl and LiOH from a LIBs leaching solution after metals precipitation. The experimental consists of an electrodialytic cell with four compartments divided by two cation ... -
Recovery of Li and Co from LiCoO2 via Hydrometallurgical–Electrodialytic Treatment
Cerrillo-González, María del Mar; Villén-Guzmán, María Dolores; Vereda-Alonso, Carlos; Gómez-Lahoz, César; Rodríguez-Maroto, José Miguel; Paz-García, Juan Manuel[et al.] (MDPI, 2020-03-27)
Lithium-ion batteries play an important role in our modern society as the main option to power portable electronic devices and electric vehicles. The growing demand for these batteries encourages the development of more ... -
Removal of polycyclic aromatic hydrocarbons (PAHs) in conventional drinking water treatment processes
Gutiérrez-Urbano, Isabel; Villén-Guzmán, María Dolores; Pérez-Recuerda, Rocío; Rodríguez-Maroto, José Miguel (Elsevier, 2021-09-16)
The presence of polycyclic aromatic hydrocarbons (PAHs) in water poses a serious threat to the human health due to their toxic effects. Therefore, the removal of these compounds from drinking water in Potable Water Treatment ...