Browsing División de Ciencias Ambientales by Subject "INGENIERÍA Y TECNOLOGÍA"
Now showing items 1-18 of 18
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Adsorbentes híbridos oxihidróxidos metálicos-carbón para remover contaminantes prioritarios del agua: fluoruro y arsénico
(2015)"La contaminación del agua por fluoruros (F- ) y arsénico (As) es un problema de importancia mundial, ya que el agua subterránea de varios países excede los límites permisibles establecidos por la Organización Mundial de ... -
Anaerobic arsenotrophy linked to iron and sulfur biotransformations: implications on the fate of arsenic in solid-liquid interfaces
(2020-03-17)"Arsenic (As) is a metalloid classified in the heavy metal group as it can induce toxicity at low concentrations (µg/L). On a global scale, the recognition of arsenic as a priority pollutant derives from its occurrence in ... -
Bioreactores empacados con fibras de carbón activado como mediadores redox en la biotransformación anaerobia de 4-Nitrofenol hacia 4-Aminofenol
(2017)"La función de los grupos funcionales superficiales sobre los carbones activados es de gran interés en procesos biológicos con actividad redox porque tales grupos pueden incrementar la eficiencia de biotransformación de ... -
Deforestation impacts on bat functional diversity in tropical landscapes
(2016-12)"Functional diversity is the variability in the functional roles carried out by species within ecosystems. Changes in the environment can affect this component of biodiversity and can, in turn, affect different processes, ... -
Diseño y optimización multicriterio de procesos de fabricación, mediante extrusión de nanocompositos con base en polímeros reciclados reforzados con nanocelulosa cristalina.
(2017-07)"El presente proyecto se centra en la posibilidad de conferir valor agregado a los polímeros reciclados. Estos materiales generalmente sufren una degradación considerable durante las operaciones industriales implementadas ... -
Electrodos de pasta de carbón modificados con partículas de hierro y su aplicación como sensores en la detección de As(V)
(2017)"La detección electroquímica de arsénico(V) fue evaluada en un electrodo de pasta de carbón modificado con partículas de hidro(óxidos) de hierro en medio electrolítico de NaNO3. El polvo de grafito modificado se preparó ... -
Enhancement of perchlorate removal from groundwater by cationic granular activated carbon: Effect of preparation protocol and surface properties
(Elsevier, 2018)"In order to obtain a high adsorption capacity for perchlorate, the epoxide-forming quaternary ammonium (EQA) compounds were chemically bonded onto granular activated carbon (GAC) surface by cationic reaction. The optimum ... -
Environmental applications of functionalized activated carbon with iron oxyhydroxide nanoparticles.
(2013-12)"Arsenic and sulfur are key pollutants whose presence determines the quality of water and air systems, respectively. Arsenic removal and desulfurization (of gas and diesel fuel) by activated carbon is an attractive option ... -
Evaluation of a membrane bioreactor system as post-treatment in waste water treatment for better removal of micropollutants
(Elsevier, 2016)"Organic micropollutants (OMPs) such as pharmaceuticals are persistent pollutants that are only partially degraded in waste water treatment plants (WWTPs). In this study, a membrane bioreactor (MBR) system was used as a ... -
Improved predictions of the geographic distribution of invasive plants using climatic niche models
(2016-05)"Climatic niche models for invasive plants are usually constructed with occurrence records taken from literature and collections. Because these data neither discriminate among life-cycle stages of plants (adult or juvenile) ... -
Inmovilización de oxihidróxidos de lantano sobre carbón activado para incrementar su capacidad de remoción de fluoruros del agua
(2017)"El flúor es beneficioso para la salud humana a una concentración de 0.7 mg L-1, pero se considera peligroso cuando es ingerido a concentraciones superiores a 1.5 mg L-1, el cual es el límite recomendado por la Organización ... -
Mathematical modeling of a composting process in a small-scale tubular bioreactor
(Elsevier, 2017)"A mathematical model is presented to describe a composting process occurring in a tubular bioreactor. The mathematical model is based on heat and mass transfer phenomena under the continuum approximation. The bioreactor ... -
Microorganism degradation efficiency in BOD analysis formulating a specific microbial consortium in a pulp and paper mill effluent
(2014-11)"Pulp and paper mills are a major source of pollution, generating huge amounts of intensely colored effluent that goes to the receiving end of a wastewater treatment plant. The biochemical oxygen demand test (BOD5) relies ... -
Producción de hidrógeno en continuo a partir de hidrolizados enzimáticos de bagazo de agave obtenidos con la enzima nacional Cellulase 50 XL
(2019-08-26)"El bagazo de agave es un residuo lignocelulósico que puede ser utilizado como sustrato para la producción de hidrógeno (H2). Sin embargo, debido a su estructura compleja, es necesario someterlo a un proceso de sacarificación ... -
Rheological behavior from light to heavy oils: construction of master curves
(American Chemical Society, 2016)"In this work, the rheological behavior of heavy and light stabilized (dead) oils is presented. The viscosity measurements were carried out in two different apparatuses to ensure the repetitiveness and accuracy: a Stabinger ... -
Role of indigenous microbiota from heavily contaminated sediments in the bioprecipitation of arsenic
(Elsevier, 2017)"High arsenic concentrations have been detected in alluvial aquifers of arid and semi-arid zones in Mexico. This work describes the potential of microbial arsenate reduction of the indigenous community present in sediments ... -
Studies of adsorption of heavy metals onto spent coffee ground: equilibrium, regeneration, and dynamic performance in a fixed-bed column
(2016)"Equilibrium and dynamic adsorption of heavy metals onto spent coffee ground (SCG) were studied. The equilibrium adsorption of Cd2+, Cu2+, and Pb2+ in a batch system was modeled by an ion-exchange model (IEM) based on an ... -
TRUE GRASP: Actors visualize and explore hidden limitations of an apparent win-win land management strategy in a MAB reserve
(Elsevier, 2018)"Win-win solutions might be short-lived. Government permission for smallholder farmers to extract and sell resin from a pine savanna biosphere-reserve in Mexico has settled a long dispute among different stakeholders in ...