RESUMO
Capacitive deionization (CDI) is an emerging water desalination technology whose principle lies in ion electrosorption at the surface of a pair of electrically charged electrodes. The aim of this study was to obtain the best performance of a CDI cell made of activated carbon as the active material for water desalination. In this work, electrodes of different active layer thicknesses were fabricated from a slurry of activated carbon deposited on graphite sheets. The as-prepared electrodes were characterized by cyclic voltammetry, and their physical properties were also studied using SEM and DRX. A CDI cell was fabricated with nine pairs of electrodes with the highest specific capacitance. The effect of the flow rate on the electrochemical performance of the CDI cell operating in charge-discharge electrochemical cycling was analyzed. We obtained a specific absorption capacity (SAC) of 10.2 mg/g and a specific energetic consumption (SEC) of 217.8 Wh/m3 at a flow rate of 55 mL/min. These results were contrasted with those available in the literature; in addition, other parameters such as Neff and SAR, which are necessary for the characterization and optimal operating conditions of the CDI cell, were analyzed. The findings from this study lay the groundwork for future research and increase the existing knowledge on CDI based on activated carbon electrodes.
RESUMO
Se revisan 24 casos de Pancreatitis aguda Grave presentados en el Departamento de Cuidados Críticos del Hospital Nacional Guillemo Almenara Irigoyen durante el período enero 2000 -Diciembre 2001. Se describen las principales características y complicaciones habidas por sistemas. Así mismo se comenta los principales regímenes de antibióticos utilizados en el servicio. Se concluye con las recomendaciones basadas en evidencia para el tratamiento médico-quirúrgico.
24 cases of serious acute Pancreatitis are revised presented in the Department of Critical Cares of the HNGAI during the period January 2000 -Dec. 2001. The main ones are described characteristic and complications there been by systems. Likewise the main scheme of antibiotic is commented used inthe service. You concludes with the recommendations based on evidence for the medical-surgical treatment.