During nanofiltration processing of whey a significant amount of permeate is
generated. In some cases this permeate is treated by reverse osmosis to get
purified water for technological needs. Dry substances are not used, because
they contain practically the same amount of organic and inorganic components.
Mineral substances can be used for the mineralization of drinking water
purified by reverse osmosis. However, the presence of organic compounds
complicates the process of separation, as well as reduces the specific
productivity of reverse osmosis membranes at the concentration stage.
Therefore, the search for methods of destruction and removal of organic
components is grounded. In the presented work, experimental studies of
ozonation and sorption of organic compounds by activated carbon were carried.
It has been shown that ozonation improves the degree of sorption purification
by six times. Sequential treatment with ozone and subsequent filtration
through the layer of activated carbon improves the specific productivity of
reverse osmosis membranes by 30% at the stage of treatment of the
nanofiltration permeate, while their selectivity remains unchanged.