Results 41 to 50 of about 980 (115)

Boosted Photocatalytic Activity of Zn/Al‐Based Layered Double Hydroxides Through Cobalt Incorporation for Phenol Degradation

open access: yesChemistrySelect, Volume 9, Issue 14, April 12, 2024.
Zn/Al and Zn/Al−Co(0.3) hydrotalcites were synthesized via the co‐precipitation method. After the calcination process, both materials exhibited photocatalytic activity in phenol degradation. However, the incorporation of cobalt promotes the formation of surface defects such as oxygen vacancies, favoring the adsorption of oxygen species and enhancing ...
Nora S. Portillo‐Vélez   +5 more
wiley   +1 more source

Removal of Arsenic and Sulfates from an Abandoned Mine Drainage by Electrocoagulation. Influence of Hydrodynamic and Current Density

open access: yesInternational Journal of Electrochemical Science, 2014
This paper presents a study of arsenic and sulfate removal from an abandoned mine drainage in Guanajuato Mexico (As 24 p.g L-1, SO42- 3567 mg L-1, pH 7 and conductivity 3.56 mS cm-1) by electrocoagulation (EC) using aluminum as the sacrificial anode in a
Primitivo Del Ángel   +4 more
doaj   +1 more source

Performance of low impact development on peak flow reduction in an urban system

open access: yesJAWRA Journal of the American Water Resources Association, Volume 60, Issue 2, Page 427-441, April 2024.
Abstract This study proposes an approach to evaluate the efficiency of low impact development (LID) in reducing urban runoff using a rainfall generator to disaggregate daily rainfall into sub‐hourly rainfall data, which are used as input of a hydrological model at the urban watershed scale.
M. Pampaloni   +8 more
wiley   +1 more source

An Exploration of the Four‐Decade‐Long History of Photocatalytic Water Treatment: Analysis of Key Advancements, Underlying Relationships, and Failures along the Way

open access: yesSolar RRL, Volume 8, Issue 3, February 2024.
The identification of research gaps and problems shows that the field is still dominated by TiO2, but new materials are emerging. The integration of solar light and priority emerging contaminant elimination is prioritized together with the application of novel catalysts.
Mohsen Ansari   +3 more
wiley   +1 more source

Aglomeración y lixiviación en lecho fijo de colas de proceso de flotación de cobre a escala de laboratorio: efecto del contenido de humedad en la aglomeración

open access: yesRevista de Metalurgia, 2003
Se evalúa el efecto que tiene el contenido de humedad de las colas (relaves), generadas en el proceso de flotación de minerales de cobre, en la fabricación de un material aglomerado apropiado para el proceso de lixiviación en pilas.
C. A. Herrera, J. F. Muñoz, J. M. Casas
doaj   +1 more source

Increased Adsorption of Heavy Metal Ions in Multi-Walled Carbon Nanotubes with Improved Dispersion Stability

open access: yesMolecules, 2020
In recent years, carbon nanotubes (CNTs) have been intensively studied as an effective adsorbent for the removal of pollutants from wastewater. One of the main problems for its use corresponds to the agglomeration of the CNTs due to the interactions ...
Carolina Rodríguez   +2 more
doaj   +1 more source

Evaluation of gas turbine diagnostic techniques under variable fault conditions

open access: yesAdvances in Mechanical Engineering, 2017
The aim of this study is to evaluate gas path diagnostic techniques using a principle of variable structure classification applied to cover possible fault scenarios in gas turbine maintenance.
Juan Luis Pérez-Ruiz   +4 more
doaj   +1 more source

Arsenic Removal from Groundwater by Electrocoagulation Process in a Filter-Press-Type FM01-LC Reactor

open access: yesInternational Journal of Electrochemical Science, 2014
Treatment of groundwater containing arsenic by electrocoagulation (EC) has been studied in a filter-press-type FM01-LC reactor using 3 cell stack with aluminum as the sacrificial anode.
Omar J. Flores   +2 more
doaj   +1 more source

Calibración de modelo de cloro mediante algoritmos genéticos en red de agua potable de Guanajuato

open access: yesTecnología y ciencias del agua
La concentración de cloro como desinfectante suministrado a la red de distribución de agua decae con el paso del tiempo debido a su interacción con microorganismos, metales y otras sustancias presentes en el agua.
Daniel Alberto García-Cervantes   +5 more
doaj   +1 more source

Invirtiendo las clases de hidráulica y riegos = Flipping hydraulic and irrigation classes

open access: yesAdvances in Building Education, 2017
En este artículo se presenta una experiencia educativa basada en la combinación de la clase inversa y el aprendizaje experiencial en los siguientes temas: hidrología e irrigación.
Fernando Sobrino Olmedo   +2 more
doaj   +1 more source

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