The objective of the research was to determine the effect of temperature and pressure on defibrillation in grapevine pruning residues for the production of biogas in a high-efficiency anaerobic biodigester. Laboratory tests were carried out in a thermohydrolyzer designed to evaluate steam explosion thermohydrolysis and determine the effect of temperature and pressure on the defibrillation of residues from vine pruning. Subsequently, the biogas production and methane productivity were evaluated in high-efficiency reactors, according to the German standard VDI 4630, quantified based on three hydraulic residence times at 5, 10 and 15 days and with a fixed concentration of solids. at 10%. The results found show a significant effect (p <0.05) in cell rupture at a temperature of 80 ° C, however the effect of pressure was not significant (p> 0.05). Regarding the production of biogas, the...

La biomasa residual fundo de Majes de la Universidad Católica de Santa María (UCSM) es limitada para alimentar el Biodigestor de la planta de High Performance & Temperature Controlled - Rottaler Modell (HPTC-RM) de dos etapas (Hidrolítica y Metanogénica), la planta puede producir 10m3.h-1 de biogás con una eficiencia de 60 - 68% de volumen de metano por hora, sin embargo, actualmente la planta alcanza solo el 1.25% de rendimiento de lo esperado y es alimentada con estiércol de vaca o de cerdo.   El problema es la variabilidad de cultivos que no generan significativa biomasa, las brosas no alcanzan las dos toneladas por cada dos días, es por ello que se requiere implementar un sistema sostenible de cultivo energético, en el presente trabajo de investigación se determinó el potencial de producción factible para la planta HPTC-RM de la UCSM utilizando pencas podadas de O...

We performed a comparative analytical study in order to determine the preference it dentists and patients on the clinical use gel with the enzyme papain obtained from Carica pubescens versus conventional rotary method for the removal of tooth decay in children. The research began with pilot-scale production of enzyme gel remover Carica pubescens.To determine the preference of the removal of caries validated questionnaires were applied pretest and posttest to 308 dentists and 308 patients randomly selected children who participated voluntarily, from cities in southern Peru. The dentists were trained in patient selection, the diagnosis of tooth decay, the inclusion and exclusion criteria and clinical application technique of gel. At random was used gel or conventional rotary method at the mouth of a patient with similar clinical features of two oclusal carious lesions and at successive tim...