The invention relates to a
reverse osmosis device and a
reverse osmosis treatment system for treating high-concentration
sewage. The
reverse osmosis device comprises a housing and a connecting rod which is arranged at the center of the housing, wherein a connection
flange and a
tail end
flange, which are connected to two ends of the housing in a sealing manner, are respectively provided with a
sewage inlet, a permeate outlet and a concentrated liquid outlet, a plurality of
layers of laminar flow discs and filter membrane assemblies are sleeved on the connecting rod, a permeate passage which is communicated to the permeate outlet is arranged between each laminar flow disc and the connecting rod, an inner opening of each filter membrane
assembly is communicated to the permeate passage, a plurality of elongated distributing holes are uniformly distributed on each laminar flow disc and close to a central hole, and the surface of each laminar flow disc is provided with a plurality of
spoke-shaped guide passages along the
radiation direction of the elongated distributing holes. The reverse
osmosis treatment system comprises a treatment device for evaporating the high-concentration
sewage at a low temperature and the reverse
osmosis device, wherein the treatment device comprises a sewage preheating
assembly, an air preheating
assembly, a low-temperature plate-type
evaporation device and a recycling assembly. The reverse
osmosis device has the advantages of high
sewage treatment efficiency, high water yield, good water outlet effect, low
energy consumption and the like and the service life of the membrane is long.