3. Waste treatment

Although this point is not specific to ECM, it must be taken into account for all the releases that the industry will produce in the years to come:

• The components of the waste are very well identified, as they come from the electrochemical dissolution of an alloy;

• the components are grouped together in the form of sludge, which is more or less dry depending on the filtration principle used, and which the chemical industry knows how to process. This is an additional cost that must be taken into account in all profitability calculations;

• Studies are currently underway in various research units in France and around the world to reduce pollution and treatment costs. The main avenues being explored are liquid-liquid complexation for the recovery of sludge containing high-value-added...