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Investigation into the characteristics and possible applications of biomass gasification by-products from a downdraft gasifier systemMelapi, Aviwe January 2015 (has links)
Biomass gasification has attracted the interest of researchers because it produces zero carbon to the atmosphere. This technology does not only produce syngas but also the byproducts which can be used for various application depending on quality.The study conducted at Melani village in Alice in the Eastern Cape of South Africa was aimed at investigating the possible applications of the gasification byproducts instead of being thrown away. Pine wood was employed as the parent feedstock material for the gasifier. Biomass gasification by-products were then collected for further analysis. The studied by-products included tar(condensate), char, soot and resin. These materials were also blended to produce strong materials.The essence of the blending was to generate ideal material that is strong but light at the same time.The elemental analysis of the samples performed by CHNS analyser revealed that carbon element is in large quantities in all samples. The FTIR spectra showed almost similar results for all the studied samples, since the samples are end products of lignocellulosegasification. SEM gave the sticky images of resin as well as porous char structures. Char showed a higher heating value of 35.37MJ/Kg when compared to other by-products samples.
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Elabora??o de um plano de gerenciamento integrado de res?duos s?lidos no restaurante universit?rio da Universidade Federal do Rio Grande do Norte / Elabora??o de um plano de gerenciamento integrado de res?duos s?lidos no restaurante universit?rio da Universidade Federal do Rio Grande do Norte / Drafting a plan for integrate management of solid residues on the universitary restaurant of Federal University of Rio Grande do Norte / Drafting a plan for integrate management of solid residues on the universitary restaurant of Federal University of Rio Grande do NorteCarneiro, Cl?udia Maria de Figueiredo Moreira Leite 27 May 2011 (has links)
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Previous issue date: 2011-05-27 / The concern about preservation of the environment reaches different layers and sections of global society. The environmental prior quality of our planet can only be reached through changes in the attitudes taken in relation due to the waste generated by society, this also lead involving the education sector, in example of the Superior Education Institutions where the concept of ambiental management needs to gain a growing space.In the Federal University of Rio Grande do Norte, can be found the Universitary Restaurant as an example of a Food and Nutrition Unit, it is a restaurant destined to provide services to the academic comunity with the production and distribution of meals. In this operational context the work itself aims subsidies and funds to the search of as minimal generation of residues as possible, applying environmentally correct processes and practices. The work was developed in the period of September to October of 2009 in the Universitary Campus of Federal University of Rio Grande do Norte, in the Universitary Restaurant of the referred institution. The project involved all the employees of the restaurant and used like method the action survey. The produced waste was characterized, arranged according with it s nature (organic or inorganic) classificated following the NBR ISO 14004, adapted by Kinasz (2004) that adjusts the Standards to the specific reality of Food and Nutrition Services being diagnosed an expressive amount of produced waste in the Universitary Restaurant, it can be assured that a culture of wasting is very present and exists, contributing to the rise of solid residues, damaging the environment and consequently reflecting in the costs and expenses of the Unity, a known fact that characterizes and justifies the need of a promoting and active action that leads to positive reflexes in the economic and environmental area, drafting a Plan for Integrate Management of Solid Residues on the Universitary Restaurant of Federal University of Rio Grande do Norte / A preocupa??o com a conserva??o do meio ambiente atinge diferentes camadas e setores da sociedade mundial. A qualidade do meio ambiente de nosso planeta s? poder? ser alcan?ada atrav?s de mudan?as nas atitudes tomadas em rela??o aos res?duos gerados pela sociedade, isto tamb?m acaba por envolver o setor da educa??o, a exemplo das institui??es de Ensino Superior onde o conceito de gest?o ambiental necessita ganhar um espa?o crescente. Na Universidade Federal do Rio Grande do Norte, encontra-se o Restaurante Universit?rio, que a exemplo de uma Unidade de alimenta??o e Nutri??o, ? um restaurante destinado a prestar servi?os ? comunidade acad?mica com a produ??o e distribui??o de refei??es. Neste contexto operacional o trabalho objetiva subs?dios para ? busca da gera??o m?nima poss?vel de res?duos, aplicando pr?ticas e processos ambientalmente corretos. O trabalho foi desenvolvido no per?odo de setembro de 2009 a outubro de 2009 no Campus Universit?rio da Universidade Federal do Rio Grande do Norte, no Restaurante Universit?rio da referida institui??o. O projeto envolveu todos os funcion?rios do restaurante e utilizou como m?todo a pesquisa a??o. Caracterizaram-se os res?duos produzidos, dispostos de acordo com sua natureza (org?nica ou inorg?nica) segundo classifica??o da NBR ISO 14004, adaptada por Kinasz (2004) que ajusta ?s normas ? realidade espec?fica dos Servi?os de Alimenta??o e Nutri??o. Sendo diagnosticado um expressivo volume de res?duos produzidos no Restaurante Universit?rio, pode-se afirmar que existe uma cultura de desperd?cio, contribuindo para o aumento de gera??o de res?duos s?lidos, prejudicando o meio ambiente e refletindo consequentemente nos custos e gastos da Unidade, fato este que caracteriza e justifica a necessidade de promoverem-se a??es que resultem na redu??o da produ??o deste res?duo, seu manejo e destina??o adequada, com reflexos positivos na ?rea econ?mica e ambiental, elaborando um Plano de Gerenciamento Integrado de Res?duos S?lidos no Restaurante Universit?rio da Universidade Federal do Rio Grande do Norte
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