The invention discloses an
ultrafiltration system, which comprises an original water box and a pre-
treatment system, wherein the parts of the pre-
treatment system are connected through high-pressure pumps; the pre-
treatment system is connected with a
desalination system via a high-pressure pump; the
desalination system is sequentially connected with an
ozone sterilizer, a fine treatment system and an
ultrapure water box; the pre-treatment system comprises a multi-medium filter, an acticarbon filter, a precise filter and a hollow
fiber ultrafiltration system which are connected in sequence; the
desalination system adopts a
reverse osmosis device; the fine treatment system adopts EDI (
Electronic Data Interchange) equipment. The
ultrafiltration system disclosed by the invention has the advantages that the
reverse osmosis device is adopted to replace a traditional used
ion exchanger, and the desalination rate and
recovery rate are high; in addition, not only is desalination realized, but also most
bacteria,
colloid and organic substances with
large molecular weight are removed; the EDI equipment replaces a mixed
ion exchange column, the chemical regeneration of acid and alkali is not required during running, so that a large amount of acid, alkali and water for cleaning are saved, the labor density is greatly lowered, and more importantly, the no waste acid or waste lye is discharged, so that the
environmental protection is facilitated.