Removing inorganics from nonmetal fraction of waste printed circuit boards by triboelectric separation

Illustration of lab triboelectric separation system: a - roots blower; b - pressure tank; c - rotameter; d - screw feeder; e - tribocharger ; f - cyclone; g - separator; h1 - positive power; h2 - negative power; i - dust collection system; j - product products collection grooves; k - the number of products collection grooves.92