Fe3O4-contg. (up to 15% by mass) chitosan membranes were crosslinked with glutaraldehyde and tested for H2O permeability and pervaporation. The water permeability coeffs. increased more than twice in pervaporation and 1.17 times in vapor permeation with the increase of Fe3O4 content. Similarly, the permeability coeffs. of ethanol through the membrane decreased 1.6 times and 1.9 times, resp. The significantly higher permeate streams were obtained during the pervaporation than during the permeation.