The necessity and meaning

Abstract

It is necessary for environmental evaluation of surface finishing processes. From the viewpoint of current environmental protection acts and laws in various countries (which seem to be getting stricter) surface finishing industries are facing serious challenges. These industries tend to release heavy metals and other pollutants into our air, water, and soil. Therefore, to meet the demands of the environmental protection laws, they will need to modify current processes and propose some new ones to replace their traditional methods. In order for these new processes to be adequate and effective, appropriate environmental evaluations are needed to test them. This chapter describes several ways to evaluate and treat harmful contaminants in air and water (especially those from the surface finishing industry).