Reduction of dye in effluent of dyeing process of industrial laundries for adsorption in clay / Redução de corante em efluente de processo de tingimento de lavanderias industriais por adsorção em argila

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

The textile industries constitute factor of great importance in the Brazilian economy and are grouped in three main staple fiber categories: fabrics of cotton, woolen and synthetic. The environment impact provoked by the sector, the generation of effluent liquids if constitutes in a representative parameter as potentially polluting factor. Moreover, it is one of the industrial typology that more consumes water in its productive process. One of the biggest generated environment problems during the process of dyeing in the industrial laundries is the great amount of highly polluting spilling, contends high toxic substance load, amongst these the dyes. The evaluation of the removal of color of the effluent ones is basic in such a way for the environmental control, a time that the color intervenes with the biological processes of aquatic ecosystems. The objectives considered for the development of the thesis aim at to contribute with information for the minimization of environmental problems, promoting the evaluation of the systems of dye?s removal of textile effluent and elaborating a proposal for a system small economically viable technician and aiming at its application in small and measured companies. In this work it was studied use as adsorbent a esmectita clay, that if constitutes in a residue of great availability in the Region of the Araripe in Pernambuco ? Brazil, in a dye´s removal process in the typical effluent of the dyeing of industrial laundries, through two methods: simplest, in batch equilibrium and later in fixed bed, more applicable to the reality of the related companies. The results had demonstrated a good potential of the process since values of removal of dyes above of 90% had been gotten. A mathematical modeling was made in order to get an empirical equation that inside reproduced the adsorption phenomena for diverse outflows of the band of experimental data available, getting an equation with high capacity of forecast of results

ASSUNTO(S)

adsorção minerais de argila clay deys removal corantes fixed bed adsorption tingimento batch equilibrium argila

ACESSO AO ARTIGO

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