964 resultados para eco-friendly industrial lubricants


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Small- and medium-sized enterprises (SMEs) play a key role in the EU economy.[1] According to the latest “SME performance review” published by the European Commission,[2] in 2014 there were 22 million SMEs active in the non-financial business sectors, generating more than €3.7 trillion in added value and employing approximately 90 million people. SMEs’ contribution to the European economy becomes even more apparent if one considers that 99 out of every 100 enterprises active in the EU non-financial economy are SMEs, and that these firms account for about 67% of the total employment and some 60% of the overall added value produced in Europe. Against this background, enhancing the competitiveness of European SMEs is essential in order to foster the competitiveness of the EU economy as a whole. And since the competitiveness of European SMEs in the global arena largely depends on their ability to innovate,[3] unlocking the innovation potential of SMEs becomes pivotal to fostering growth and jobs in Europe.

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This paper discusses the possible contributions from modularity and industrial condominiums towards enhancing environmental performance in the automotive industry. The research described in this study is underpinned by a review of journal articles and books on the topics of: modularity of production systems; green operations practices, and the automotive industry and sustainability. The methodology is based on theoretical analysis of the contribution of the modular production system characteristics used in the automotive industry for Green Operations Practices (GOP). The following GOPs were considered: green buildings, eco design, green supply chains, greener manufacturing, and reverse logistics. The results are theoretical in nature; however, due to the small number of studies that investigate the relationship between modularity and sustainability, this work is relevant to increase knowledge in academic circles and among practitioners in order to understand the possible environmental benefits from modular production systems.

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Experimental methods of policy evaluation are well-established in social policy and development eco-nomics but are rare in industrial and innovation policy. In this paper, we consider the arguments forapplying experimental methods to industrial policy measures, and propose an experimental policy eval-uation approach (which we call RCT+). This approach combines the randomised assignment of firmsto treatment and control groups with a longitudinal data collection strategy incorporating quantitativeand qualitative data (so-called mixed methods). The RCT+ approach is designed to provide a causativerather than purely summative evaluation, i.e. to assess both ‘whether’ and ‘how’ programme outcomesare achieved. In this paper, we assess the RCT+ approach through an evaluation of Creative Credits – aUK business-to-business innovation voucher initiative intended to promote new innovation partnershipsbetween SMEs and creative service providers. The results suggest the potential value of the RCT+ approachto industrial policy evaluation, and the benefits of mixed methods and longitudinal data collection.

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Incorporating Material Balance Principle (MBP) in industrial and agricultural performance measurement systems with pollutant factors has been on the rise in recent years. Many conventional methods of performance measurement have proven incompatible with the material flow conditions. This study will address the issue of eco-efficiency measurement adjusted for pollution, taking into account materials flow conditions and the MBP requirements, in order to provide ‘real’ measures of performance that can serve as guides when making policies. We develop a new approach by integrating slacks-based measure to enhance the Malmquist Luenberger Index by a material balance condition that reflects the conservation of matter. This model is compared with a similar model, which incorporates MBP using the trade-off approach to measure productivity and eco-efficiency trends of power plants. Results reveal similar findings for both models substantiating robustness and applicability of the proposed model in this paper.

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Despite the recent synthesis and identification of a diverse set of new nanophotocatalysts that has exploded recently, titanium dioxide (TiO2) remains among the most promising photocatalysts because it is inexpensive, non-corrosive, environmentally friendly, and stable under a wide range of conditions. TiO2 has shown excellent promise for solar cell applications and for remediation of chemical pollutants and toxins. Over the past few decades, there has been a tremendous development of nanophotocatalysts for a variety of industrial applications (i.e. for water purification and reuse, disinfection of water matrices, air purification, deodorization, sterilization of soils). This paper details traditional and new industrial routes for the preparation of nanophotocatalysts and the characterization techniques used to understand the physical chemical properties of them, like surface area, ζ potential, crystal size, and phase crystallographic, morphology, and optical transparency. Finally we present some applications of the industrial nanophotocatalysts.

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Phenol is a toxic organic pollutant to living cells and its biodegradation is considered the best method due to its environment friendly nature and cost effectiveness. In this study, eight bacterial strains were isolated through enrichment on mineral salt media supplemented with 300 mgL -1 phenol. The isolated strains were identified by 16S rRNA gene sequence analysis and belonged to genera: Rhodococcus, Stenotrophomonas, Lysinibacillus, Comamonas, Microbacterium, Pseudomonas and Halomonas. The results of phenol biodegradation experiments (conducted at pH 7 and 30°C temperature) showed that the strains could degrade 750 mg L -1 phenol within 40 to 96 hours. The average phenol degradation rate by the strains was 12.5 to 34.8 mgL -1 h-1. The most rapid phenol degradation was observed for Rhodococcus sp. NCCP-309 and Rhodococcus sp. NCCP-312, whereas, Stenotrophomonas sp. NCCP-311, Lysinibacillus sp. NCCP-313, Comamonas sp. NCCP-314 and Microbacterium sp. NCCP-351 took longer time in phenol degradation. The results of our study suggested that these strains are efficient in phenol biodegradation and can be used for the bioremediation of waste water containing phenol.

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Los residuos sólidos como consecuencia directa de las actividades humanas, han representado un reto desde sus inicios, de ahí se empezaron a desarrollar técnicas y prácticas para garantizar una adecuada gestión de los residuos, nuestros primeros ancestros encontraron en los botaderos a cielo abierto la solución más fácil para disponer los desechos de animales y residuos de comida en sitios cercanos a sus viviendas, por ejemplo, los griegos poseen registros de la inauguración del primer relleno municipal en la ciudad de Atenas hace más de 2000 años. La evolución de las culturas, la revolución industrial y el crecimiento poblacional acelerado han modificado no solo la composición sino también la cantidad de los residuos sólidos producidos, haciendo cada día más difícil su adecuada gestión debido a su alto grado de toxicidad, la ausencia de materiales biodegradables y su volumen, traduciendo esto en un gran impacto. El panorama no es muy alentador y los pronósticos emitidos por el Banco Mundial prevén que para el año 2025 los niveles mundiales de residuos sólidos urbanos alcanzaran 2,2 millones de toneladas por año. Basada en el interés por la adecuada gestión de los residuos y la disminución del impacto ambiental de las empresas Coraseo S.A y Seacor S.A, la presente investigación busca seleccionar la metodología y/o tecnología más apropiada teniendo en cuenta las condiciones económicas, logísticas y de infraestructura de la empresa y la comunidad involucrada. En primera instancia se estudió en profundidad el panorama empresarial y posteriormente se seleccionó un grupo de cuatro propuestas para la transformación y aprovechamiento de los residuos sólidos que fueron evaluadas a nivel económico, normativo, medio ambiental. Los datos analizados sugieren entre otras cosas, un robustecimiento del marco legal ambiental colombiano y mundial, una mayor colaboración económica de los organismos internacionales y las entidades bancarias y finalmente una reducción en los costos de las tecnologías disponibles para el aprovechamiento de los residuos sólidos, haría posible el sueño de las sociedades de gestionar efectivamente los residuos sólidos generando el menor impacto ambiental posible y en el caso del grupo empresarial Cordobés lograr innovar y emprender con un proyecto eco eficiente como el que se evaluó.

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Los modelos de gestión urbana a nivel global, incorporan en la planeación y en el desarrollo de los entornos urbanos, al suelo natural de soporte como estructura fundamental; debido principalmente a sus funciones ecosistémicas y a los bienes ambientales que provee, incluyendo la biodiversidad y la conservación de entornos con calidad paisajística, entre otros. Teniendo en cuenta lo anterior, el objetivo principal de esta investigación, consiste en hacer un seguimiento y caracterización del ecosistema estratégico del corredor biológico borde norte en la ciudad de Bogotá, con el fin de identificar y dar visibilidad a los aspectos críticos, que son necesarios a tener en cuenta en la política e instrumentos de planeación, para el tratamiento de ésta área. En el desarrollo de esta investigación, se aplicaron las nociones metodológicas de la ecología urbana, dando inicio con una fase de diagnóstico y caracterización de la situación actual, seguido de la formulación de alternativas, entre las que se destacan, la restauración ecológica. En el diagnóstico se pudo identificar que, si bien existe disponibilidad de agua y de cobertura vegetal en las condiciones de suelo, también está presente una gran presión inmobiliaria en el sector, lo cual, ha promovido la alteración de los predios, haciendo urgente un tratamiento integral de restauración ecológica de éste corredor, que permita la recuperación de la función ecosistémica, aportando beneficios a la ciudad.

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