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Water

ZwitterCo raises $33 million for zwitterionic wastewater membranes

by Matt Blois
September 25, 2022 | A version of this story appeared in Volume 100, Issue 34
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Most Popular in Environment

 

Long tube-like water treatment membranes.
Credit: ZwitterCo
ZwitterCo's wastewater treatment membranes

ZwitterCo has raised $33 million to continue development and production of membranes that clean wastewater. The company says its membranes are built with zwitterionic copolymers—molecules that have both negatively and positively charged groups—and that they maintain their performance even after repeated cleanings. The copolymers form channels that let water pass through but that repel oils, greases, and proteins. ZwitterCo has pilot projects treating wastewater from farms and food makers.

Chemical & Engineering News
ISSN 0009-2347
Copyright © 2024 American Chemical Society

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