Zn cations were transported through polymer inclusion membrane in an app. consisting of 2 interconnected glass vessels, sepd. with a 17.8 mm thick membrane made of cellulose triacetate, 1-decyl-1,2,4-triazole and (BuO)(3)PO4. Each vessel was equipped with connector pipes to introduce a mech. stirrer and a sampler. Optionally, the app. was placed in an ultrasound bath (160 W, 40 kHz). In one of the vessels, the supply phase (1 mol/L) of an aq. soln. of ZnCl2 was placed, and the const. Cl (2 mol/L) concn. was maintained by addn. of NaCl. The mech., ultrasound or mech. supported with ultrasounds mixing was carried out at 20-60 degrees C. The Zn concn. in the receiving phase was detd. each 1 h by titration. The increase of the process temp. from 20 degrees C to 60 degrees C resulted in an increase of Zn recovery from 27.35% to 48.54% for the mech. mixing, from 29.87% to 58.14% for ultrasound mixing, and from 47.02% to 99.90% for ultrasound - supported mech. stirring.