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Tag: Desalination

Inventors (and Innovators) Wanted

By KIM BELLARD

I thought about writing about the election, but I’m too anxious – and a little terrified – about it, so I’ll take a pass. I was intrigued by Oracle Health’s promise of an AI-driven, “next-generation” EHR, or the news that OpenAI was introducing ChatGPT search, but I felt that each was inevitable and yet that both would prove underwhelming in the short term.

So I decided to write about invention.

The November issue of IEEE Spectrum magazine is all about invention, starting with the tantalizing overview Why the Art of Invention Is Always Being Reinvented. “Invention doesn’t come from some innate genius, it’s not something that only really special people get to do,” says Stephanie Couch, executive director of the Lemelson MIT Program

Still, authors Eliza Strickland and Peter B. Meyer warn, “…the limits of what an individual can achieve have become starker over time. To tackle some of the biggest problems facing humanity today, inventors need a deep-pocketed government sponsor or corporate largess to muster the equipment and collective human brainpower required.”

Tell that to UTEP student Tayia Oddonetto. While an undergraduate, she had an epiphany. “During class, the professor said that if someone discovered how to turn brine, water with a high salt concentration, into something of value, it’d be revolutionary for the planet. At that moment, I told myself I was going to be the one who found the solution for brine, and that thought has never left me.”

And she did it. Instead of the more common reverse osmosis (RO) method of desalination, which at best converts 85% of salt water into fresh water and leaves a problematic 15% of concentrated brine, Ms. Oddonetto used something called salt-free, electrodialysis metathesis. As the press release describes it: “Salt-free electrodialysis metathesis treats brine by passing it through ion exchange membranes, thin sheets or films, and electrical currents that work to separate salt from water at the molecular level.”

Her approach produced over 90% fresh water, and generated higher levels of valuable metals and minerals that can be repurposed across several industries including technology, health and food.

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