Navegando por Autor "Sousa, M. A. S. B."
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Artigo Kinetics of the biodegradation of monoaromatics by pseudomonas aeruginosa(Associação Brasileira de Engenharia Química, 2019) Câmara, Jéssica Maria Damião de Arruda; Sousa, M. A. S. B.; Barros Neto, Eduardo Lins deWater contamination by monoaromatic compounds has risen throughout time, which leads to the necessity of developing new water treatment technology, capable of minimizing their negative effect on the environment. In this context, biological processes present themselves as a solution to the processes of extraction. Bioremediation makes use of microbial groups capable of using hydrocarbons as a source of carbon to perform their metabolic functions. This work evaluated the biodegradation efficiency of Pseudomonas aeruginosa strain isolated from contaminated matrices, for the substrates benzene, ethylbenzene and toluene, aiming to determine to which compound the bacteria had better adaptation. For that, bioremediation assays were performed for each of the monoaromatic compounds, in an isolated way, with the goal of obtaining experimental data and from this Monod and Andrews kinetic models were discretized and numerically developed through the Runge-Kutta method. It was possible to observe that Pseudomonas aeruginosa has a bigger affinity for ethylbenzene, while benzene generated a bigger microbian coefficient. Monod´s model was capable of predicting satisfactorily the experimental dataArtigo A single-effect solar still for desalination of treated oil production water(Brazilian Journal of Petroleum and Gas, 2009) Chiavone Filho, Osvaldo; Sousa, M. A. S. B.; Melo, Josette Lourdes de Sousa; Melo, Hênio Normando de Souza; Nunes, A. O.; Borges, M. C.Methods for evaporating oil produced water (OPW) have been tested and used to remove salinity by means of solar energy. The aim of the present study was to assess the application of a conventional solar still in the desalination of treated OPW, investigating the temperatures reached and comparing them with solar radiation levels. The solar distillation equipment consisted of a two-water single effect passive solar still. The still was fed with treated OPW. Temperatures were recorded using data loggers with PT100 sensors. The experiments were conducted between February and April 2008. The temperatures obtained are consistent with the type of still used and the seasons of the year. The maximum recorded temperatures varied between 49.9 °C and 63.8 °C. The distilled volume ranged between 48 and 240 mL/h. The estimated daily amount produced was compatible with literature values. The results show that the single-effect solar still can also be used to desalinate treated OPW