Abstract
The aim of the present work is to collect diagnoses about the contamination level of industrial effluents and surface water receiving wastewater containing azo dyes, as well as to evaluate the toxic and/or mutagenic potentiality of some dyes and derivatives. These data can contribute to understanding transportation, bioaccumulation, persistence and biotransformation processes occurring in the environment or in the human metabolism. The overall of strategies to reach these objectives are: i) to optimize analytical methodologies to promote pre-concentration, detection and quantification of azo dye and sub-products in effluents and surface water, loam and sediment receiving rejects from textile industry, leather industry, food industry and hair dyeing ii) to mimetize biotransformations reactions and degradation processes occurring from irregular discharge of dye by electrochemical techniques, modified electrodes by DNA and polyaminoacids and biological assays; iii) to evaluate induction of damage to the genetic material and preliminary alterations of the immunology system promoted by dyes of azo type and water containing rejects from textile industry, leather industry, food industry and hair dyeing; iv) to optimize degradation methods of several classes of dyes bearing azo groups as chromophore by advanced oxidative methods, as photo-fenton and photoelectrocatalysis under artificial irradiation and solar light and to develop more efficient reactors to the treatment of effluent at industrial scale; v) to contribute with the guidelines and legislation for dye effluents. The researchers groups involved in this project have being worked together for long time and couple multidisciplinary area based on frontiers of biological and chemical sciences important to the advance of this branch of knowledge. (AU)
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