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Obtención de aceite esencial de cardamomo
(Fondo Editorial Universidad de Antioquia, 2000-01-01) Sáez A; GIL PAVAS EDISON; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
El presente estudio muentra un método simple y económico para la obtención de aceite esencial de cardamomo bajo la filosofía "cero emisiones". Para la implementación del proceso de extracción se realizaron ensayos preliminares y se tuvieron en cuenta fact
DISEÑO Y MONTAJE DE UN EQUIPO PARA LA EXTRACCIÓN DE ACEITES ESENCIALES, A ESCALA PILOTO.
(IMPRENTA UNIV ANTIOQUIA, 2000-04-01) Gil, Edison Hernán; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
FOTOCATÁLISIS: UNA ALTERNATIVA VIABLEPARA LA ELIMINACIÓN DE COMPUESTOS ORGÁNICOS
(Fondo Editorial Universidad EAFIT, 2002-01-01) Gil, Edison Hernán; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
FOTODEGRADACIÓN DE FENOLES EN AGUAS RESIDUALES INDUSTRIALES
(Editorial Alcion S.A., 2002-05-01) Gil, Edison Hernán; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
FOTODEGRADACIÓN DE FENOLES EN AGUAS RESIDUALES INDUSTRIALES.
(Editorial Alcion S.A., 2002-06-01) Gil, Edison Hernán; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
REMOCIÓN DE CROMO DE EFLUENTES LÍQUIDOS, ENTORNO AL CONCEPTO ZERI.
(Editorial Alcion S.A., 2002-08-01) Gil, Edison Hernán; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
Dextran causes aggregation of mitochondria and influences their oxidoreductase activities and light scattering
(ELSEVIER SCIENCE INC, 2003-01-01) Lemeshko, Victor; López, Luis Fernando; Solano González, Sigifredo; Rendón Rivera, Dairo Alonso; Gómez, Luis A.; Universidad EAFIT. Departamento de Ciencias; Ciencias Biológicas y Bioprocesos (CIBIOP)
It has been reported that dextrans diminish the intermembrane space of mitochondria, increase the number of contact sites between the inner and the outer mitochondrial membranes, decrease the outer membrane permeability to adenosine 5(')-diphosphate, and
FOTO-OXIDACIÓN DEL SISTEMA CROMO HEXAVALENTE-4-CLOROFENOL
(Fondo Editorial Universidad EAFIT, 2003-05-01) Gil, Edison Hernán; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
A possible restriction of ferro- and ferricyanide oxidoreductase activities of rat liver mitochondria by the outer membrane.
(ELSEVIER SCIENCE INC, 2005-11-15) Ramirez, LAG; Lemeshko, VV; Universidad EAFIT. Departamento de Ciencias; Ciencias Biológicas y Bioprocesos (CIBIOP)
In this work, various ferro-ferricyanide oxidoreductase activities of rat liver mitochondria were studied to find conditions under which the outer membrane might restrict the flux of these highly charged non-biological anions. When the isotonic low ionic strength medium was supplemented with 25mM KCl, a several-fold increase in the succinate-ferricyanide reductase activity of mitochondria and in the rate of external NADH oxidation in the presence of ferrocyanide was observed. Mitochondrial respiration with 5mM ferrocyanide was almost completely inhibited after consumption of 3.8-18.5% of the dissolved oxygen, depending on the medium and the presence of 2,4-dinitrophenol. These and other experimental data together with mathematical modeling of the redox-state equilibrium suggest that the measured activities might be restricted by two factors: first, the permeability of the outer mitochondrial membrane and second, a strong influence of the ionic strength of incubation media on the intermembrane space redox reactions.
Experimentos en el aula de clase para enseñanza de la física
(Sociedad Colombiana de Física, 2006-01-01) J. I. Marulanda; Gómez, Luis A.; Universidad EAFIT. Departamento de Ciencias; Ciencias Biológicas y Bioprocesos (CIBIOP)
Considerando la importancia de los aspectos fenomenológicos como motivación para elaborar modelos formales en la enseñanza de la física, la experimentación se convierte en un recurso didáctico valioso en este proceso.
Fotocatálisis de benceno-tolueno en efluentes acuosos
(Editorial Alcion S.A., 2006-01-01) Pavas, E.G.; Trejos, L.E.G.; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
[No abstract available]
Degradación de colorantes de aguas residuales empleando UV/TiO2/H2O2/Fe2
(Fondo Editorial Universidad EAFIT, 2007-03-01) Gil, Edison Hernán; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
Método acoplado fisicoquímico y biológico para la degradación de cianuro
(Editorial Alcion S.A., 2008-01-01) Pavas, E.G.; Estrada, C.G.; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
Se evaluó la degradación del cianuro presente en una corriente residual de galvanoplastia mediante un proceso combinado: fotocatálisis heterogénea y biodegradación con un aislado nativo.
METODO ACOPLADO FISICOQUIMICO Y BIOLÓGICO PARA LA DEGRADACIÓN DE CIANURO
(2008-11-01) Gil, Edison Hernán; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
The Box-Benkhen experimental design for the optimization of the electrocatalytic treatment of wastewaters with high concentrations of phenol and organic matter.
(IWA PUBLISHING, 2009-01-01) GilPavas, Edison; Betancourt, Alejandra; Angulo, Monica; Dobrosz-Gomez, Izabela; Angel Gomez-Garcia, Miguel; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
In this work, the Box-Benkhen experimental Design (BBD) was applied for the optimization of the parameters of the electrocatalytic degradation of wastewaters resulting from a phenolic resins industry placed in the suburbs of Medellin (Colombia). The direct and the oxidant assisted electro-oxidation experiments were carried out in a laboratory scale batch cell reactor, with monopolar configuration, and electrodes made of graphite (anode) and titanium (cathode). A multifactorial experimental design was proposed, including the following experimental variables: initial phenol concentration, conductivity, and pH. The direct electro-oxidation process allowed to reach ca. 88% of phenol degradation, 38% of mineralization (TOC), 52% of Chemical Oxygen Demand (COD) degradation, and an increase in water biodegradability of 13%. The synergetic effect of the electro-oxidation process and the respective oxidant agent (Fenton reactant, potassium permanganate, or sodium persulfate) let to a significant increase in the rate of the degradation process. At the optimized variables values, it was possible to reach ca. 99% of phenol degradation, 80% of TOC and 88% of COD degradation. A kinetic study was accomplished, which included the identification of the intermediate compounds generated during the oxidation process.
Optimizaión de la eliminación de colorantes y carga orgánica de aguas residules Mediante electrocoagulación
(Editorial Alcion S.A., 2009-01-01) Gil Pavas, E.; López G, L.F.; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
[No abstract available]
Multifactorial optimization of the decolorisation parameters of wastewaters resulting from dyeing flowers.
(IWA PUBLISHING, 2009-01-01) Gil Pavas, Edison; Angel Gomez-Garcia, Miguel; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
This work deals with the treatment of the wastewaters resulting from the process of dyeing flowers. In some local cases for growing flowers near to Medellin (Colombia), wastewater color was found to be one of the main problems in meeting local effluent standards. Wastewaters were treated by photodegradation process (which includes photocatalysis) to achieve the degradation of dyes mixture and organic matter in the wastewater. A multifactorial experimental design was proposed, including as experimental factors the following variables: pH, and the concentration of both catalyst (TiO(2)) and hydrogen peroxide (H(2)O(2)). According to the obtained results, at the optimized variables values, it is possible to reach a 99% reduction of dyes, a 76.9% of mineralization (TOC) and a final biodegradability of 0.834. Kinetic analysis allows proposing a pseudo first order reaction for the reduction, the mineralization, and the biodegradation processes.
Supercomplexes of the mitochondrial electron transport chain decline in the aging rat heart
(ELSEVIER SCIENCE INC, 2009-10-01) Gómez, Luis A.; Monette, Jeffrey S.; Chavez, Juan D.; Maier, Claudia S.; Hagen, Tory M.; Universidad EAFIT. Departamento de Ciencias; Ciencias Biológicas y Bioprocesos (CIBIOP)
Accumulation of mitochondrial electron transport chain (ETC) defects is a recognized hallmark of the age-associated decline in cardiac bioenergetics; however, the molecular events involved are only poorly understood. In the present work,
Treatment of automotive industry oily wastewater by electrocoagulation: statistical optimization of the operational parameters.
(IWA PUBLISHING, 2009-11-01) GilPavas, Edison; Molina-Tirado, Kevin; Angel Gomez-Garcia, Miguel; Universidad EAFIT. Departamento de Ingeniería de Procesos; Procesos Ambientales (GIPAB)
An electrocoagulation process was used for the treatment of oily wastewater generated from an automotive industry in Medellin (Colombia). An electrochemical cell consisting of four parallel electrodes (Fe and Al) in bipolar configuration was implemented. A multifactorial experimental design was used for evaluating the influence of several parameters including: type and arrangement of electrodes, pH, and current density. Oil and grease removal was defined as the response variable for the statistical analysis. Additionally, the BOD(5), COD, and TOC were monitored during the treatment process. According to the results, at the optimum parameter values (current density = 4.3 mA/cm(2), distance between electrodes = 1.5 cm, Fe as anode, and pH = 12) it was possible to reach a c.a. 95% oils removal, COD and mineralization of 87.4% and 70.6%, respectively. A final biodegradability (BOD(5)/COD) of 0.54 was reached.
Characteristics of the Rat Cardiac Sphingolipid Pool in Two Mitochondrial Subpopulations
(Elsevier Inc., 2010-06-01) Monette, Jeffrey S.; Gómez, Luis A.; Moreau, Regis; Taylor, Alan; Hagen, Tory M.; Universidad EAFIT. Departamento de Ciencias; Ciencias Biológicas y Bioprocesos (CIBIOP)
Mitochondrial sphingolipids play a diverse role in normal cardiac function and diseases, yet a precise quantification of cardiac mitochondrial sphingolipids has never been performed. Therefore, rat heart interfibrillary mitochondria (IFM) and subsarcolemm

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