Ultrafiltration

Published in Water Filtration
Written by Nicholas Papp

Creation Date Wednesday, 20 April 2011.

Ultrafiltration (UF) is similar to reverse osmosis, in that pressure is used to force water molecules through a porous membrane. However, the pores of a UF membrane are about 10 times larger in diameter than the pores of an RO membrane. Because of this, the driving pressure can be much lower (25-50 psi), and any dissolved solids in the water will pass right through the membrane. The UF membrane removes suspended solids, colloids, bacteria, pyrogen, endotoxin, DNase and RNase from the water. In a laboratory water purification system, the ultrafilter is used to remove pyrogen, endotoxin, DNase and RNase.

About the Author

Nicholas Papp

Nicholas Papp has a B.S. in Physics, with Minors in Chemistry and Math, from Baldwin-Wallace College. He is the Vice President and General Manager of AQUA SOLUTIONS, INC., and has worked in the water filtration/purification industry for more than 35 years.