TY JOUR TI THE RECYCLING OF PREVIOUSLY PROCESSED COPPER-CONTAINING WASTE TO PRODUCE PURE COPPER POWDER KW biological leaching KW copper powder KW copper-containing waste JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Gavrish, V.. AU Baranov, G.. AU Kul'tenko, E.. AU Gavrish, O.. AU Shagova, Y.. PY 2016 IS 1 PB Belgorod State Technological University named after V.G. Shukhov