Within the internship program, an experimental research as well as database work was conducted at NMBU laboratories. A number of laboratory experiments were conducted by Ukrainian and Belarusian students. The possibility of using granular activated sludge on the membrane in biological treatment of municipal sewage was investigated by analysing changes in the values of the total and biological oxygen demand with variable contact time of the sewage with the sludge. The second experiment was to investigate the allelopathic effect of exudates germinated on wastewater from different crops on the target crop. In the second experiment, multiple measurements of pH, COD, BOD, nitrite, nitrate, ammonium, phosphate and potassium content were performed, as well as other researches with modern laboratory equipment. Basing on the obtained results, students prepared relevant reports and completed coursework.