Several methods are employed for the disposal of catalysts:
Recycling: This involves recovering valuable metals from the spent catalysts and reusing them in new catalysts or other applications. Reprocessing: Spent catalysts are treated to regenerate their activity and are then reused in the same or a different process. Landfilling: This is the least preferred method and is typically used only when other options are not feasible. Strict regulations govern the landfilling of hazardous materials. Incineration: Involves burning the spent catalysts to reduce their volume and toxicity. However, this method can release harmful emissions and is not suitable for all types of catalysts.
