Electrochemical Reactor
Mostrando 13-24 de 37 artigos, teses e dissertações.
-
13. DESENVOLVIMENTO DE METODOLOGIAS ELETROQUÍMICAS PARA MONITORAMENTO AMBIENTAL DA RIFAMPICINA E SUA ELETRODEGRADAÇÃO PELA GERAÇÃO DE AGENTES OXIDANTES IN SITU. / DEVELOPMENT OF METHODOLOGIES FOR ELECTROCHEMICAL ENVIRONMENTAL MONITORING OF YOUR E RIFAMPICIN ELETRODEGRADAÇÃO GENERATION BY OXIDIZING AGENTS IN SITU.
The drugs are considered pollutant emergent, a time that its presence in aquatic environments is each bigger time. This research has as objective to develop electrochemical methodologies that allow to monitor and to degrade the rifampicin in water of public supplying. In the stage of monitor a voltammetric method was developed using a biosensor of chitosan f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/10/2010
-
14. Degradação eletroquímica do cloranfenicol em reator de fluxo
This paper reports a study of electrochemical degradation of the chloramphenicol antibiotic in aqueous medium using a flow-by reactor with DSA® anode. The process efficiency was monitored by chloramphenicol concentration analysis with liquid chromatography (HPLC) during the experiments. Analysis of Total Organic Carbon (TOC) was performed to estimate the de
Química Nova. Publicado em: 2010
-
15. Comparação dos processos de eletrodeposição de íons cobre usando reatores de leito fluidizado e leito de jorro
In this work was studied the process of removal of ions has covered simulated effluent gifts in watery having used electrochemical reactor of fluidized stream bed and of stream bed of I gush out whose porous cathodes were composites for conducting copper particles. Applying an factorial planning Box-Behnken the effect of the electric chain had been studied,
Publicado em: 2010
-
16. Hydrogen from biomass gas steam reforming for low temperature fuel cell: energy and exergy analysis
This work presents a method to analyze hydrogen production by biomass gasification, as well as electric power generation in small scale fuel cells. The proposed methodology is the thermodynamic modeling of a reaction system for the conversion of methane and carbon monoxide (steam reforming), as well as the energy balance of gaseous flow purification in PSA (
Brazilian Journal of Chemical Engineering. Publicado em: 2009-03
-
17. Estudo da degradação de ranitidina via H2O2 eletrogerado/Fenton em um reator eletroquímico com eletrodos de difusão gasosa
The study of the electrochemical degradation of the ranitidine was developed using an electrochemical reactor with a gas diffusion electrode (GDE) as cathode. The electrolysis experiments was performed at constant current (1 < A < 10) and flow rate of 200 L h-1. The process of drug degradation, chemical/electrochemical and electro-Fenton ways, using electroc
Química Nova. Publicado em: 2009
-
18. Avaliação da degradação do diclofenaco sódico utilizando H2O2/fenton em reator eletroquímico
This paper describes a degradation study of the anti-inflammatory sodium diclofenac in aqueous medium using an electro-chemical flow reactor with a gas diffusion electrode as cathode. Two degradation processes were compared: by H2O2 electro-generated and H2O2 electro-generated/Fe(II). Concentration of sodium diclofenac was determined during the experiments b
Química Nova. Publicado em: 2009
-
19. Filmes de diamante nanocristalino infiltrados em substratos de silício poroso através das técnicas CVD/CVI / Nanocrystalline diamond films infiltrates in porous silicon substrate by CVD/CVI Processes
The growth of nanocrystalline diamond films (NCD) on porous silicon (PS) substrate was studied using high resolution scanning electron microscopy, high resolution X-ray diffraction, X-ray photoelectron spectroscopy and Raman scattering spectroscopy. The NCD/PS films resulted in a composite material, with great potential for electrochemical application, mainl
Publicado em: 2009
-
20. Filmes de diamante-CVD sobre substrato de titânio puro poroso: uma proposta para aplicação como eletrodo / CVD-diamond films on tridimentional porous pure titanium substrate: an electrode application proposal
A novel composite material formed from nanocrystalline and/or microcrystalline diamond films grown on pure porous titanium substrate was extensively studied taking into account their morphological, structural and electrochemical properties. The films were deposited by chemical vapor deposition technique, using a hot filament reactor, while the powder metallu
Publicado em: 2008
-
21. Instrumental innovations in capillary electrophoresis with electrochemical detection in the analysis of mono and oligosaccharides, amino acids and proteins / Inovações instrumentais em sistemas de eletroforese capilar com detecção eletroquímica e aplicações em análises de mono e oligossacarídeos, aminoácidos e proteínas
This work shows the development of two equipments (H1 and B1) of capillary electrophoresis (CE) with contactless conductivity detection (C4D) applied to the analysis of biomolecules. They have a system named MSE (module for separated electrolysis) that avoids the harmful effect of electrolysis. H1 have only one capillary and the majority of the experiments p
Publicado em: 2008
-
22. Estudo da degradação de ranitidina via H IND. 2 O IND. 2 eletrogerado/fenton em um reator eletroquimico com eletrodos de difusão / Studyof the degradation eletrochemical of ranitidine it saw H IND. 2 O IND. 2 eletrogerado/fenton in an eletrochemical reactor with electrodes of gaseous diffusion
The study of the electrochemical degradation of the ranitidine, a drug used in the therapy of gastric ulcers was development in two steps. In the first step was studied the electrochemical behavior of the ranitidine on platinum (Pt) and glassy carbon (CV) electrodes, using cyclic voltammetry in aqueous (K2SO4 0.1 M) and non-aqueous (NaClO4 0.1 M in DMF) elec
Publicado em: 2007
-
23. Electrochemical degradation of the sodium diclofenac / Estudo da degradação eletroquimica do diclofenaco sodico
This work proposes the development and the optimization of the electrochemical treatment of a synthetic effluent with sodium diclofenac. In this work two stages were executed the study of the redox reactions of the sodium diclofenac and, the process of this organic compound. Hydrodynamic voltammetry experiments were recorded to identity sodium diclofenaco re
Publicado em: 2007
-
24. Use of factorial-design on the study of the electrochemical Removal of Pb(II) ions from simulated wastewaters / Utilização de planejamento fatorial no estudo da remoção eletroquímica de íons Pb(II) de fluentes simulados
In this work, the removal of Pb(II) ions from simulated wastewaters, using a flow-through cell under galvanostatic condition was studied. With help of factorial design and response surface methodology, the variables current, electrolyte flow rate and the specific surface area of the three-dimensional cathode used (stainless-steel wool AISI 304) were simultan
Publicado em: 2007