20.500.12556/RUL-183359 Electrostatic separation of copper/PVC mixtures from electric cable wastes using an induction-type separation Elektrostatska ločitev mešanic bakra in PVC iz odpadnih električnih kablov z uporabo električnega separatorja The paper investigates the impact of various parameters on the electrostatic separation of a metalinsulator mixture, specifically focusing on copper and polyvinyl chloride (PVC). The separation process employs an induction-type separator in which a suspended rotating roll attracts metallic particles through their induced charge. Upon contact with the rotating electrode, the particle charge is reversed, leading to its expulsion due to a repulsive force. The investigation shows that several factors—including the particle size, voltage, roll speed, and the positioning of the collecting box—significantly affect the recovery rate. The roll attraction zone is experimentally determined based on the behavior of individual particles. It is observed that once a minimum voltage is reached to lift a particle, the attraction distance increases linearly with the applied voltage. To optimize the separation process, an experimental methodology is employed, in which the process is represented as a polynomial function of two control variables i.e. the applied voltage and the roll speed. The resulting quadratic model of a high descriptive and predictive capability quantifies the impact of each parameter. Under optimal states, high-purity PVC particles (95%) and the copper recovery rate of 97% are achieved. Raziskava preučuje elektrostatsko ločevanje bakra in PVC iz odpadnih električnih kablov z uporabo indukcijskega separatorja, pri čemer se kovinski delci zaradi induciranega naboja prilepijo na vrtljivi valj in se nato zaradi spremembe naboja izločijo. Raziskava je pokazala, da na učinkovitost ločevanja vplivajo napetost, hitrost valja, velikost delcev in položaj zbirne posode. Ugotovljeno je bilo, da se po dosegu minimalne napetosti, potrebne za dvig delca, razdalja privlaka povečuje linearno z naraščajočo napetostjo. Za optimizacijo postopka ločevanja je bil proces predstavljen kot polinomska funkcija dveh kontrolnih spremenljivk: uporabljene napetosti in hitrosti vrtenja valja. Nastali kvadratni model z visoko opisno in napovedno močjo kvantitativno izraža vpliv posameznih parametrov. V optimalnih pogojih sta doseženi visoka čistost delcev PVC (95 %) in izplen bakra (97 %). recycling electrostatic separation electric cable wastes design of experiments metal-insulator mixtures mininalna napetost separator optimizacija postopka baker PVC true false true Angleški jezik Slovenski jezik Članek v reviji 2026-06-11 15:28:07 2026-06-11 15:28:15 2026-06-12 04:18:45 0000-00-00 00:00:00 2025 0 0 Str. 174-180 št. 4 Letn. 92 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 628.477:621.359.7 0013-5852 280483587 RAZ_Remadnia_Mokdad_2025.pdf RAZ_Remadnia_Mokdad_2025.pdf 1 7EA21984729262A56479D3B45B032DBB a466f152bdfacc478f14866df7b4d9684bc03234cb7f886ee59eb85011fb8e42 621be7f5-6599-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=235379 https://ev.fe.uni-lj.si/4-2025/Remadnia.pdf 0 7366e276-6599-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=235380 Fakulteta za elektrotehniko 0 0 0