Proposta de gerenciamento de resíduos químicos laboratoriais gerados nas aulas práticas de Química Analítica.

Abstract

Analytical Chemistry experiments generate potentially toxic waste that must be managed through a standardized disposal system. At the Federal Institute of Goiás, Câmpus Itumbiara, there are two Chemistry courses, the Master's Degree and the Integrated Technician. These courses have hands-on analytical activities, that inevitably generate chemical waste. This project aimed to classify the above-mentioned waste to find a correct destination. The methodology that conducted the study was proposed by Viana and her colleagues (2018) and includes the following phases: inventory, minimization measures, isolation, packaging, waste labeling, storage and final disposal. After performing these steps, salts containing manganese, chromium, iron and silver chloride and silver chromate compounds are the main toxic substances generated. The goals proposed for this paper were achieved - from the detection of the waste amount generated in each practical class, to its storage and its final disposal and also to the minimization measures. It is believed this paper will be the first step towards a change in the entire academic community and will serve as a basis for similar works in other disciplines of Chemistry and also in research works making chemical waste.