Products by Membrane Specialists, LLC

low-pressure process for the retention of suspended material particle size of 0.01 microns or large. Smaller particles (sales, sugars and proteins, for example) pass through the membrane. Typical operating pressures range from 5 to 45 psi.

A medium-pressure process offering retention of proteins, colloids and biological material including particles 0.005 microns or larger (molecular weight greater than 1000 Dalton). Typical operating pressures range from 7 to 150 psi.

Water and monovalent ions, as well as low molecular weight (less than 250 Dalton) pass through nanofiltration membranes. Divalent or multivalent ions, such as divalent salts, are retained. Operating pressures between 120 and 600 psi are typical.

A high-pressure process that retains almost all particles and ionic species, while water and some organic molecules pass through. Substances with molecular weight above 50 Dalton are retained almost without exception. Operating pressures are typically between 300 and 850 psi, but may exceed 1100...