REVERSE OSMOSIS AND NANOFILTRATION Reverse Osmosis (RO) and Nanofiltration (NF) are high pressure membrane processes which operate a total or partial demineralization of the filtered waters.

Filtration degree Molecular Weight Cut Off (MWCO) Rejected compounds Reverse Osmosis 0,001 - 0,0001 µm < 200 Ions, mineral salts, organic substances Nanofiltration 0,01 - 0,001 µm 200 - 15.000 Pigments, sugars, monomers, endotoxins, pirogens, divalent ions

TECN.A. designs all types of reverse osmosis and nanofiltration systems, using spiral wound membranes. The main applications we have developed, either on primary waters or wastewaters, are: Primary waters demineralization Treatment and recycle of wastewaters Zero discharge systems Ultrapure water production.  The pre-assembled choice of models we fabricate ranges from 250 lt/h up to 36.000 lt/h. Chemical products of our production and conception, such as antiscalant and cleaners for membrane cleaning are also available .