Medidas para mejorar la eficiencia energética en el transporte marítimo

Este documento presenta un panorama de diversos parámetros que podrían mejorar la eficiencia del combustible para el transporte marítimo. Desde una perspectiva latinoamericana, los cálculos ilustran las emisiones y el combustible que consumen diversos modos de transporte.

A sucessão ecológica em ambientes florestais em restauração: estrutura e dinâmica da regeneração natural

Ecological restoration aims to restore the self-sustainability potential of degraded environments. The successional trajectory of areas in restoration may differ from the reference ecosystem on a number of factors, especially the disturbance history of the area and management techniques applied in order to reverse the degradation scenario. In this sense, the objective of this study was to characterize the dynamics of natural regeneration and the structure of the regenerating community in an area of ecological restoration for 25 years on the right bank of the Rio Grande in the Power Station in Camargos that belongs to the Companhia Energetica de Minas Gerais - CEMIG, Nazareno, MG, in order to identify the current state of environmental regeneration. In November 2014, there was the first community inventory of seedlings existing in regeneration subplots (2 x 2 m) within the inclusion criteria (height ≥ 10 cm and DBH <5 cm), divided into 44 subplots (11 plots) in two areas, one area in restoration (REF) and a fragment of native vegetation (FRAG). In October 2015, the second sampling was carried out, in which individuals were resampled and recruits and dead individuals quantified. The parameters abundance, floristic similarity, density, dominance, importance value, equability, richness and diversity were analyzed in both samples. The dynamics was evaluated for the number of individuals and basal area in the period of 2014-2015 and individuals distributed according to height. The history of usage area provoked different behavior between the study environments; the patterns of the FRAG and REF communities along the years allowed the distinction between environments and demonstrated great environmental diversity, with differences in the abundance of species, floristic similarity, richness, diversity, vertical structure and dynamics parameters. In the REF area, there was a considerable increase in the density of individuals along the years and the establishment of different species. In this sense, the evaluation of natural regeneration in REF has shown that resilience is gradually being resumed, a necessary condition to support the potential for environmental self-sustainability. However, given the disturbance history, it can be concluded that the environment moves to an alternative state, which is possibly different from that prior to degradation.

Eficiencia energética y regulación económica en los servicios de agua potable y alcantarillado

Este documento analiza el consumo de energía en el sector de agua potable y alcantarillado y propone políticas regulatorias para mejorar la eficiencia energética de los prestadores de estos servicios en América Latina y el Caribe. Está dirigido a las agencias de regulación sectorial, así como todas las demás partes interesadas del sector privado y público.

Recuperação e aplicação do dicromato de potássio proveniente do resíduo de sulfocrômica

A simple procedure for recovering potassium dichromate (K2Cr2O7 ) from treatment of residual sulphochromic solution was proposed in the present work by means of cooling crystallization. The decrease of temperature favored the crystallization of K2Cr2O7 due to the decrease of solubility. 5.0 L of sulphochromic wastes containing 48.08 g L-1 of Cr(VI) were treated and the process of crystallization was performed in three steps until crystals were not formed anymore. On each step the content of Crtotal was determined by flame atomic absorption spectrometry and Cr(VI) by colorimetric method with 1,5- diphenylcarbazide, resulting in the removal of 91% and 92% of Crtotal and Cr(VI), respectively. After the last step, the remaining Cr(VI) in the solution was reduced to Cr(III) from the addition of NaHSO3 , recovering via precipitation in pH 8 approximately 36.13 g of Cr(OH)3 . The final supernatant was discarded since chromium content was below the maximum limit established by the Brazilian legislation for effluents discharge, which corresponds to 0.10 and 1.0 mg L-1 of Cr(VI) and Cr(III), respectively. 628.4 g of K2Cr2O7 were recovered and the salt was characterized by X-ray diffraction and differential thermal analysis. Its applicability was compared to the standard K2Cr2O7 when determining the soil organic matter, in which there was no significant difference, thus inferring that the recovered compound may be incorporated on routine analyses. This recovering process allowed the reuse of K2Cr2O7 , thus reducing costs with the acquisition of new reagents and environmental impacts caused by the inadequate discard of sulphochromic solutions.

Programa Integral de Eficiencia Energética para el Distrito Metropolitano de Quito (PIEEQ)

En el presente documento, producto de un acuerdo de colaboración y cooperación técnica establecido a fines de 2013 entre la CEPAL y el Municipio de Quito, se resumen las contribuciones técnicas de los diferentes especialistas sectoriales para la implementación acelerada del Programa Integral de Eficiencia Energética para Quito.

Estudo da mobilidade do glifosato utilizado como capina química em um programa de recuperação de mata ciliar

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Capacidade de auto-recuperação de cursos d'água urbanos: estudo de caso : Córrego Campestre em Lins - SP

Pós-graduação em Engenharia Civil - FEIS

Estimulação ovariana, recuperação e maturação de oócitos de veado-catingueiro (Mazama gouazoubira)

Pós-graduação em Medicina Veterinária - FCAV

Resposta ovariana e taxa de recuperação embrionária em éguas tratadas com FSH suíno

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeito do tratamento com extrato de pituitaria equina (EPE) e hCG no índice de recuperação de oócitos e maturação folicular em equinos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeito do tratamento com baixa dose de extrato de pituitária ou FSH purificado equino no crescimento folicular, taxa de ovulação de recuperação embrionária em éguas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Aplicação do processo eletrolítico no tratamento de efluentes de uma indústria de recuperação de filmes plásticos pós-consumo

Pós-graduação em Engenharia Civil e Ambiental - FEB

Eficiencia energética y movilidad en América Latina y el Caribe: Una hoja de ruta para la sostenibilidad

Incluye bibliografía.

Informe nacional de monitoreo de la eficiencia energética del Brasil

Este documento reúne las conclusiones de un extenso trabajo emprendido por la EPE hace tres años y cuyos fines principales son la concepción y realización de una base de indicadores de eficiencia energética, gracias a los cuales se podrán observar y medir la evolución y el resultado de las políticas y programas nacionales de eficiencia energética emprendidos por Brasil.

Relatório nacional de monitorização da eficiência energética do Brasil

Este documento consolida os resultados de um extenso trabalho que vem sendo realizado pela EPE há três anos e que tem por objetivos principais o desenvolvimento e o preenchimento de um banco de indicadores de eficiência energética, para fins de monitoramento do desempenho de eficiência energética no Brasil.