REVERSE OSMOSIS PLANT AND DISINFECTION OF REVERSE OSMOSIS PLANT PIPES Russian patent published in 2014 - IPC C02F1/44 B01D61/08 B01D65/02 

FIELD: process engineering.

SUBSTANCE: invention relates to production of super pure water by reverse osmosis process. Reverse osmosis plant permeate return pipe incorporates circulation pump and electrochemical ozone generator. Reverse osmosis plant permeate return pipe in direction of flow downstream of circulation pump and ozone generator is connected via circulation pipe with permeate feed pipe to make closed circulation circuit for ozonised permeate circulates unless all organic impurities are killed or destructed by ozone in this section of the pipe. Valve is built in circulation pipe and return pipe downstream circulation pipe bend. Circulation pipe valve at normal operation of reverse osmosis is closed for provision of connected dialysis instrument while the valve in return permeate pipe so that excess permeate not selected for dialysis can flow in accumulation tank. Alternatively, permeate can be diverted to drain line.

EFFECT: sparing cleaning of pipeline without damaging the pumps.

9 cl, 1 dwg