Plastic Residues
Mostrando 13-24 de 50 artigos, teses e dissertações.
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13. Co-pirólise de polipropileno pós-consumo com gasóleo / Co-pyrolysis of polypropylene residues with gas-oil
In this study, the process of co-pyrolysis of polypropylene (PP) residues with gas-oil was evaluated, varying the temperature and the amount of polypropylene fed to the reactor. The co-pyrolysis is a promising route to minimize the environmental impact caused by the inadequate disposal of plastics, preventing its accumulation in landfields and giving a bette
Publicado em: 2008
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14. ADIÇÃO DE RESÍDUO DE ARGAMASSAS MISTAS NA PRODUÇÃO DE TIJOLOS MODULARES DE SOLO-CIMENTO / ADDITION OF THE MIXED WASTE OF MORTAR PRODUCTION OF BRICKS OF MODULAR SOIL-CEMENT
Studies that use alternative materials and techniques of construction have assumed a great importance and relevance in engineering in the current context of environmental preservation and use of residues. This research had as a general objective studying the technical feasibility of applying the cement residue and sand, originally from the civil construction
Publicado em: 2008
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15. Characterization of the urban solid residues of the Maceió-AL city. / Caracterização dos resíduos sólidos urbanos da cidade de Maceió-AL.
This work presents and argues the characterization of the urban solid residues generated in Maceió-AL, by means of laboratory and field assays, searching to contribute for operational improvements in the system of urban cleanness of the city. The residues had been collected monthly from routes previously defined, in the period of one year, in eight differen
Publicado em: 2008
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16. Influência do lodo de ETE na massa para fabricação de cerâmica vermelha
The WTP produce many kinds of residue on your treatment stages, but the sludge is the more problematic from the final disposition point view. The actual rate of residue production deriving from technological evolution and the crescent population needs prevents the subtle equilibrium generation between consumption and recycling/reuse, creating problems of pol
Publicado em: 2008
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17. CASCA DE ARROZ E ESTERCO BOVINO PARA A MULTIPLICAÇÃO DE MINHOCAS E PRODUÇÃO DE MUDAS DE ALFACE, TOMATE E BOCA-DELEÃO / RICE HUSK AND CATTLE MANURE TO EARTHWORMS MULTIPLICATION AND PRODUCTION OF LETTUCE, TOMATO AND SNAPDRAGON
The earthworms are organisms of the edaphic fauna with great capacity of transformation of organic residues with stabled composting. The potential of these organisms have the advantage in the earthworm-breeding, seeking the humus production as organic fertilizer, and earthworms biomass, as food for several animals. However, many organic residues are not ofte
Publicado em: 2008
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18. Construction and evaluation of microsystems for flow analysis / Construção e avaliação de microssistemas para analise em fluxo
This work describes the construction, characterization and application of microsystems for flow analysis. Laser ablation was employed for the development of a system in poly(methylmethacrylate), whose channels, with rectangular cross sections measuring 200 mm width by 4,5 mm depth, were sealed with an adhesive plastic film. This device supported flow rates u
Publicado em: 2008
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19. Produção de biogás, caracterização e aproveitamento agrícola do biofertilizante obtido na digestão da manipueira / Biogas production, characterization and agricultural use of the biofertilizer obtained in the cassava digestion
During the cassava roots processing, large quantities of waste are generated, among which stands out the manipueira, an effluent that has high polluting load, but on the other hand can be used as fertilizer and energy source. In this context, this study aimed to examine the anaerobic digestion of manipueira process, seeking to quantify the biogas produced it
Publicado em: 2008
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20. Co-pirolysis of Bacia de Campos polyethylene waste / Co-Pirólise de resíduos de polietileno com gás-óleo da Bacia de Campos
In this study the process of co-pyrolysis of plastic polyethylene residue was carried through with gas-oil under temperature variation. Initially the two samples had been submitted the thermal co-pyrolysis in inert atmosphere 550C, furtherly evaluated the efficiency of the process 500C and 450C. The pyrolysed liquids produced by this thermal treatment had be
Publicado em: 2007
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21. Development and evaluation of a biosafe automatized system for treatment, recycling and discarding of clinical microbiology residues / Desenvolvimento e avaliação de um sistema automatizado biosseguro para o tratamento, reciclagem e descarte de resíduo de microbiologia clínica
In Brazil, daily, 2.3 tons of potentially contaminated cultured medium with microorganisms are discarded. The RDC 306 resolution from the Brazilian National Health Department rules out that residue must be treated prior to discart in order to reduce microbial load. Two methods were developed to evaluate the sensitivity, efficiency and ideal concentration of
Publicado em: 2007
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22. Balanço de nitrogênio e enxofre no sistema solo-cana-de-açúcar no ciclo de cana-planta / Nitrogen and sulfur balance in the soil-sugarcane system during the plant cane cycle
This works objective was to evaluate the use and distribution of nitrogen and sulfur added to the soil as fertilizers in the soil-sugarcane system (plant cane), using the stable isotopes 15N and 34S. The study also aimed to evaluate the contribution of nitrogen mineralized from sugar cane crop residues labeled with 15N and incorporated into the soil, in a co
Publicado em: 2007
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23. UTILIZAÃÃO DA FARINHA DE CASCA DE PEQUI (Caryocar brasiliense Camb.) NA ELABORAÃÃO DE PÃO DE FORMA / Use of the pequi rind flour (Caryocar brasiliense Camb.) in the sandwich loaf elaboration
The bread in its some forms is one of the most spread out foods in the world, with an increasing consumption day after day. The bread manufacture with mixing flour allows a nutritional enrichment of the product, beyond using to advantage residues, thus diminishing the organic garbage threw out to the environment, as what is occurring with the pequi rind. The
Publicado em: 2007
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24. Análise do comportamento e crescimento do camarão branco Litopenaeus vannamei (Boone, 1931) em diferentes substratos inconsolidados
The aim of this study was to test the sediment preference of L. vannamei shrimp. It was observed shrimp visit frequency, swimming and burying behaviour at different sediment compositions for 24h. Juvenile (0.93 0.29g) and sub-adult shrimps (10.0 1.18g) were obtained from the aquaculture station at Universidade Federal Rural do Semi-Árido UFERSA, and held in
Publicado em: 2007