Progress in Filtration and Separation

Chapter Twelve

Air Tabling—A Dry Gravity Solid–Solid Separation Technique

Gjergj Dodbiba,  and Toyohisa Fujita     Department of Systems Innovation, The University of Tokyo, Tokyo, Japan

Abstract

The air table is a compact gravity-separating device, which does not require the separation of the low-density fraction from the air stream. Being a dry process, air tabling has a clear advantage over wet separation techniques because it does not require chemical pretreatment of the sample, treatment of water from the process for reuse or discharge, and most importantly, dewatering or drying the mixture after separation. Many factors affect the separation performance of air table. The mixture to be processed should initially reduced in size and classified ...