The demand and production of lithium-ion batteries has been growing from the past few years, creating a need of recycling the metals that it composes to reduce the environmental impact and to extend its lifecycle and since the cathode is composed by high value metals, recover them to abate resource scarcity. The Black Mass is the intermediate product derived from the lithium-ion batteries recycling process that contains valuable metals such as Lithium, Cobalt, Nickel and Manganese. Separating these metals is a complex process that involves different type of risks for the operators depending on the process structure and on the separation method; this thesis shows the different type of risks that an operator faces in a Black Mass separation plant structured for the Microwave Assisted Method to recover LiCO2 from spent Black Mass.