I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical EngineeringChementator Briefs
ODH Catalyst Clariant Catalyts (Munich; www.clariant.com) has teamed up with…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENGINEERING PRACTICEEQUIPMENT & SERVICESAPPLIED TECHNOLOGIESFOCUSNEW PRODUCTS + Show More

Comment uncategorized

Nanoscale uniformity of desalination membranes

By Scott Jenkins |

Reverse-osmosis (RO) desalination membranes use a polyamide selective layer formed on a microporous support to separate water molecules from salts. Past efforts to characterize the polyamide membrane structure have been limited by the internal variability of the selective layer. Now, leveraging new capabilities in microscopy and modeling, a team of academic and industrial researchers has published a study describing key insights for the structure-property relationships of RO membranes. The study, published in a recent issue of the journal Science, resulted from a collaboration of researchers from the Pennsylvania State University (State College; www.psu.edu), University of Texas at Austin (www.utexas.edu), Iowa State University (Ames; www.iastate.edu), Dow Inc. (Midland, Mich.; www.dow.com) and Dupont Water Solutions (Edina, Minn.; www.dupont.com). Using a specialized type of scanning transmission electron microscopy along with detailed computational modeling, the researchers were able to generate three-dimensional spatial information that reveals where the polymer is (and is not) concentrated within the membrane at the nanoscale. By constructing these nanoscale polyamide density maps of RO membranes, the researchers gained valuable…
Related Content

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
SICK Solutions for Cleaner Industries - Powerful Transitions
Gain a Digital Line of Sight Across the Whole Lifecycle of the Plant with a Digital Twin
Granulating High Viscous Melts in the Food Industry
How to Select a Pump for Industrial Applications
Temperature Instruments Improve Operations

View More