One of the major challenges is recycling the printed circuit boards from digital waste. The circuit boards include such valuable metals as gold, silver, platinum, and so forth. and such base metals as copper, iron, aluminum, and so forth. One method e-waste is processed is by melting circuit boards, burning cable sheathing to recuperate copper wire and open- pit acid leaching for separating metals of worth. Conventional technique employed is mechanical shredding and separation however the recycling effectivity is low. Alternative methods similar to cryogenic decomposition have been studied for printed circuit board recycling, and another strategies are nonetheless under investigation.