Using polysaccharides microbial agents bioadsorptive color in the treatment of wastewater from the textile industry
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Abstract
The contamination by dyes in residual waters is a serious problem that face different companies from the textile branch, as much those that are dedicated to the dyeing like which they fade articles by means of the washing. At the moment chemical substances that act like floculanting or coagulating agents and whom later there are to separate and to have them, in many cases are used these are not biodegradable or take many time in degrading itself in the atmosphere. The natural polysaccharides ones have turned out to be good bioadsorptive of dyes, had mainly to their structure and interaction with the dyes. The polysaccharides ones of commercial degree can be a good alternative by his low cost and the low concentration in which they are possible to be used can be attractive for different processes. The search of new alternatives for the removal of dyes by bioadsortion is the intention of this work, where different concentrations were tried from two polysaccharides ones and with different types from dyes contained in residual water samples of the textile industry, obtaining the graphics of bioadsortion. In this study the alginate was the best bioadsorptive agent, obtaining removals average superior to 85%, being its very easy separation by sedimentation and compression of the gel. This can be a good alternative for the removal of dyes in waters of the textile industry.
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