Contribuição ao estudo da ultrafiltração em modulos tubulares de membranas minerais

AUTOR(ES)
DATA DE PUBLICAÇÃO

1994

RESUMO

The history of membranes separation process in the College of Chemical Engineering -UNICAMP started with the donation of two equipaments, one for gas permeation studies and the other for ultrafiltration process studies, by FINEP -National Funding of Studies and Projects. The ultrafiltration equipament, a CARBOSEP model (ftom Rhonê-Pholenc), is composed of two tubular modules, and uses mineral membranes (ZrO2-Graphite). It has been implemented through a research project that was funded by the Support Fondation of Scientific Research of São Paulo State - FAPESP. This implementation made possible to have more quantitative view of the process. This work presents an extensive bibliographical review about ultrafiltration process. The osmotic pressure model, together with data from the literature was used to simulate, by means of a computer program, the concentration operation in tubular modules. This model was confronted with real situation through the experiments which were conducted with Dextrane T20 (Mw = 20,000) solutions. Dextrane solutions were used because their characteristics are easy to find. However, the program can be extended for other solutions because of its flexibility. The model presented a good correlation with experimental data at low concentrations (<4 wt %)

ASSUNTO(S)

separação (tecnologia) biotecnologia ultrafiltração

ACESSO AO ARTIGO

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