FIELD: chemistry.
SUBSTANCE: according to present invention the filter units containing activated carbon immobilised on the matrix operate successively and in contraflow mode. After passing the appropriate volume of raw materials the filter unit from the first filter unit series is disconnected in the determined position number and additional filter unit is connected to other particular position obtaining thus the next filter unit series which the next raw materials volume goes on passing through.
EFFECT: invention overcomes the problem of the loss of the purified material yield while said problem is actual at usual treatment with activated carbon.
16 cl, 5 ex
