Listar División de Ciencias Ambientales por título
Mostrando ítems 394-413 de 448
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Simultaneous adsorption of Pb(Ii)-Cd(Ii), Pb(Ii)-phenol, and Cd(Ii)-phenol by activated carbon cloth in aqueous solution
(2015-01)"The aim of the present work was to determine the effect of the simultaneous adsorption of lead(II)-cadmium(II), lead(II)-phenol, and cadmium(II)-phenol by activated carbon cloths (ACCs). Three commercial ACCs were ... -
Simultaneous nitrification and autotrophic denitrification in fluidized bed reactors using pyrite and elemental sulfur as electron donors
(Elsevier, 2023)In this study, simultaneous nitrification and autotrophic denitrification (SNAD) with either elemental sulfur or pyrite were investigated in fluidized bed reactors in mesophilic conditions. The reactor performance was ... -
Sintesis de redes poliméricas interpenetradas para la remoción de fluoruro y cadmio en solución acuosa.
(2010)"Las redes poliméricas interpenetradas (IPN´s) son combinaciones de dos o más polímeros en forma de red, donde al menos uno de ellos es sintetizado o entrecruzado en la presencia del otro polímero. Durante la investigación ... -
Síntesis de CaCO3 poroso para la precipitación química de fosfato en sistemas en lote.
(2019-01)"El fósforo es la sustancia limitante que contribuye a la eutrofización de cuerpos de agua superficial. Su acumulación es ocasionada por las descargas de efluentes de las plantas de tratamiento y la dificultad que existe ... -
Síntesis de un compatibilizante para poliéster y poliolefinas, con base en redes interpenetradas poliméricas
(2012-09)"Las necesidades de la sociedad actual van en aumento incesante, por lo que es de imperiosa necesidad optimizar los recursos para que las generaciones futuras no sufran de escasez ni de problemas de contaminación a causa ... -
Síntesis de xerogeles de sílice como soporte de partículas de hidro(óxidos) de hierro para la absorción de arsénico presente en la solución acuosa.
(2011)"La presencia de arsénico disuelto en agua subterránea es un problema mundial de alta prioridad. La promulgación del nivel de concentración máxima de arsénico en el agua potable (10 μgL-1, WHO) se ha reflejado en el aumento ... -
Síntesis y evaluación electroquímica de compositos con base en óxido de grafeno y poli(ácido acrílico) para la remoción y/o detección de contaminanates en agua.
(2012)"Recientemente, el óxido de grafeno (OG) se ha utilizado para reforzar diferentes materiales, por ejemplo su incorporación en polímeros, puede aumentar las propiedades mecánicas, eléctricas y térmicas de éstos. Los hidrogeles ... -
Soil fungal abundance and plant functional traits drive fertile island formation in global drylands
(Wiley, 2018)"Dryland vegetation is characterized by discrete plant patches that accumulate and capture soil resources under their canopies. These fertile islands are major drivers of dryland ecosystem structure and functioning, yet ... -
Standardized protocol for determination of biohydrogen potential
(Elsevier, 2020)"Biohydrogen production potential (BHP) depends on several factors like inoculum source, substrate, pH, among many others. Batch assays are the most common strategy to evaluate such parameters, where the comparison is a ... -
Strategies to immobilize humic substances for their application on the reductive biotransformation of recalcitrant pollutants
(2013-12)"Las sustancias húmicas (SH) y sus compuestos análogos, como las quinonas, han sido empleados como mediadores redox (MR) para acelerar la conversión de contaminantes prioritarios susceptibles a reacciones de óxido-reducción ... -
Strobilus and seed production of Dioon edule (Zamiaceae) in a population with low seedling density in San Luis Potosí, Mexico
(2013)"We describe strobilus and seed development in a Dioon edule (chamal, palma, dameu') population characterized by low seedling and high adult tree density, in order to improve conservation decisions for this endangered cycad ... -
Structural elucidation and evaluation of multidrug-resistance modulatory capability of amarissinins A–C, diterpenes derived from Salvia amarissima
(2016)"Three new diterpenes (amarissinins A-C, 1–3) containing several oxygenated functionalities were isolated from the leaves and flowers of Salvia amarissima. The structures of these compounds were established through the ... -
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 ... -
Study of nano-ZnO/Graphene-based photocatalyst to degrade Triclosan under UV and visible light
(21/02/2020)"In recent years, a growing problem with water treatment has arisen due to the presence of endocrine-disrupting compounds (EDC), which persist in surface, waste, and drinking water. A significant example of EDC is triclosan ... -
Study of the effect of the dispersion of functionalized nanoparticles TiO2 with photocatalytic activity in LDPE
(2016)"A photodegradable Low Density Polyethylene-Titanium dioxide (LDPE-TiO2) nanocomposite film was prepared, and its evaluation considers the partial modification of the surface of the particle using Hexadecyltrimethoxysilane ... -
Sulfate reduction at acidic conditions: from the sediment to the reactor
(2019-09)"Acid mine drainage is water polluted with heavy metals, sulfate, and acid as the result of some mining activities. Due its physicochemical characteristics, acid mine drainage is toxic, recalcitrant and difficult to treat. ... -
Sustancias húmicas como mediadores redox durante la oxidación anaerobia de metano y la reducción de óxido nitroso por la microbiota de un sedimento de un humedal costero
(2019-01-31)"Los humedales son la fuente natural principal de emisiones de metano (CH4), el cual resulta del equilibrio entre procesos microbianos como la metanogénesis y la metanotrofia, misma que bajo condiciones anaerobias, puede ... -
Synthesis and adsorption performance of a biochar improved with carbon nanostructures for fast gasoline emissions removal
(2022-05-30)"Considering the environmental and economic importance of recovery and reuse of gasoline emissions, this thesis explored the adsorption of volatile organic compounds (VOCs) from gasoline on a macroporous biochar/carbon ... -
Synthesis and photophysical properties of ferrocene-oligo(benzoateethynylene)- fulleropyrrolidines dyads and triads. Implications in photovoltaic cells
(2018)"A series of fulleropyrrolidines-conjugated bridge-ferrocene or triazene oligomers were selectively synthesized by the Sonogashira reaction by applying the step-by-step approach. The bridge is constituted by 1, 2 and 3 ... -
Synthesis of Bamboo-like Multiwall Carbon Nanotube–Poly(Acrylic Acid-co-Itaconic Acid)/NaOH Composite Hydrogel and its Potential Application for Electrochemical Detection of Cadmium(II)
(MDPI, 2020)"A poly(acrylic acid-co-itaconic acid) (PAA-co-IA)/NaOH hydrogel containing bamboo-type multiwall carbon nanotubes (B-MWCNTs) doped with nitrogen (PAA-co-IA/NaOH/B-MWCNTs) was synthesized and characterized by SEM, absorption ...