Abstract
UDC 537.523.3:628.316
DOI https://doi.org/10.5281/zenodo.3369712
Ultrafiltration polysulfonamide membranes with molecular weight cut-off 100 kDa were treated in a field of a unipolar corona discharge in air atmosphere with variations of the process parameters: voltage – 5, 15, 25, and 35 kV; time of the corona – 1, 3, and 5 minutes. Instrumental methods of analysis showed a change in the structure of the surface membrane – an increase of roughness and hydrophilicity of the membrane surface and, consequently, an increase in the productivity and efficiency of separation of oil-water emulsion. It was determined that the maximum efficiency (89.3%) is observed when using the studied membrane treated by the corona discharge for 5 min and a voltage of 35 kV.
Keywords: polysulfonamide membrane, corona discharge, treatment, oil-water emulsion, ultrafiltration, separation efficiency.