Tratamento de Resíduos líquidos: a Busca de um Modelo Institucional

Abstract

In recent decades the concern about the environment has been growing more and more and in the most varied means: governmental, scientific, academic, civil societies, etc. Within this theme one of the most serious issues is the generation of waste, which from the most diverse human activities has been reaching increasingly large volumes and unable to be purified by the environment, requiring for such the intervention of man. The present work seeks to develop an institutional model to employ technical, administrative, and regulatory measures for the adequate disposal of chemical waste generated in the various laboratories of the Research Campus of the Emílio Goeldi Museum of Pará (MPEG). Bibliographic research, survey and updating of MPEG's floor plans, and registration forms with the characterization of the reagents used were carried out, gathering the necessary information for the real situation of the problem of waste disposal produced daily in the different laboratories. Through the bibliographical survey, the necessary information was obtained as a starting point for the project. In the analysis and verification of the Campus floor plans it was observed that some installations were not in accordance with the real structure, being necessary to update the information, it was also verified that the sanitary sewage boxes are separated from the laboratories' waste boxes, however, at the end of the flow these boxes are in one bigger box, where it is observed the contact with the laboratories' drainage system. Registration forms with the characteristics of the reagents used in the laboratories were elaborated, and it was found that many times this waste is thrown directly into the laboratories' sinks and followed by the drainage system. Regardless of the legal obligation, the implementation of a chemical waste management program depends fundamentally on the commitment of the institution. The studies show the need for continuity of research to identify the compounds formed and released into the environment, as well as for the definition of institutional systems of waste treatment and recipients to be deployed.