Microwave treatment of e-waste
    In recent years, computers, cars , phones, TVs and other products discarded electronic components and printed circuit boards several one million annually . These e-waste landfill conventional treatment is the result of harmful metals precipitation infiltration , groundwater contamination . To this end , Professor University of Florida DE Clark research and development of microwave PCB destruction technologies recovery of precious metals . The technology of waste is crushed into a circuit board in the fused quartz crucible , in a refractory lined wall of the microwave oven 30 ~ 60 min, one of the organic matter, such as benzene and styrene volatile out by the carrier gas ( compressed air ) out of a microwave oven , a microwave into the first two are broken . And the residual material at 1 000 ℃ less coke, and the microwave power increases , and the residue ( the vast majority of glass and metal ) at a high temperature of 1400 ℃ melt to form a glass material . This material was cooled, gold, silver and other metals Take beads separated recyclable materials for metal smelting . The remaining glass products for building materials can be recycled . Microwave handling of electronic waste , waste volume can be reduced by 50% , the process without the use of any additives , will not cause secondary pollution , the final glass product , can be harmful components firmly affixed to the package which will not resulting in leakage , which recyclable precious metals, and thus deal with low cost.