The teaching of chemical technologies associated with industrial contamination that impacts the environment

Abstract

This work aims to demonstrate the importance of knowledge for the formulation of clean technologies in the production of materials and chemical products, which do not go against the interests of society and are centered on environmental preservation. Most chemical processes were conceived at the beginning of the century or in the 1950s, where the principles of preservation of man, the environment and industrial safety were not fundamental requirements in the implementation of these large basic industries. The origin of the raw materials and the multiple industrial technologies adopted in the manufacture of various products and the recovery of industrial waste or other origins are fundamental factors that dictate the quality of the final product. Several industrial processes were presented where the level and type of contaminant is inseparably linked to its origins and the industrial processes imposed. In addition, it is concluded that it is important to develop a critical technical awareness in society, especially in the University, which aims to understand the manufacturing routes of the products and the contaminants generated and/or aggregated during industrial processing, especially in relation to the quality of the products and environmental preservation.

Environmental chemistry applied to High School through laboratory experiments

“…With the growth of cities, these systems became increasingly closer, the aggressiveness and discomfort became a concern again, so the polluting bodies were transferred further away again. The environmental problem continued, as it was simply transferred from place to place [1][2][3].…”

“…But, in the last seventy years, man has observed, participated or even waited in anticipation of the development of industrial processes and energy generation, the creation, production, directly and/or indirectly, of a series of chemical products, materials and equipment used in everyday life and in most industrial segments. In this way, chemical accidents, the production of inappropriate materials and chemical and biotechnological waste dumped into the environmental system have left marks of destruction in various parts of the planet [3].…”