Abstract: The paper reviews the tailing discharge conditions in China, presents the main progress in the discharge reduction technology and equipment including the comprehensive utilization of tailings, thickening and press filtering of tailings and recycling of tailing water, and also considers the ways to reduce the tailing discharge from concentrators from the viewpoint of cyclic economy.The real cases of the discharge reduction are cited, including the zero-discharge of tailing, tailing use as building material, wastewater recycling, and tailing reconcentration and finally, the discharge reduction of concentrators is prospected.

Key words: Concentrator, Discharge reduction, Cyclic economy, Recycled water