“…solvents and surfactants, acids and bases, solutions of metal salts such as nickel, chromium, cadmium, etc.). [3,4] To address health and environmental pollution issues associated with metal finishing industries, institutions such as the US Environmental Protection Agency (EPA) have implemented a series of actions and new approaches strategically aimed to minimize the impact of this industry in our health and environment. [5,6] These actions include general waste reduction practices, alternative and substitute processes, process solution maintenance, chemical recovery technologies and off-site recovery of metals.…”