Magazine article ASEE Prism

We'll Drink to That

Magazine article ASEE Prism

We'll Drink to That

Article excerpt

ONE OF THE pressing needs in a disaster area is potable water, which is often in short supply. Many natural disasters occur in areas where there is plenty of seawater, but current desalination technologies require vast amounts of dependable electricity - also typically lacking in a disaster. Now, MIT researchers, working with colleagues in South Korea, are developing a mini-desalination system that would use only as much power as a conventional light bulb. The system separates out salt - and some dangerous microbes, including viruses and bacteria - by electrostatically repelling them from an ion-sensitive membrane. It's a microscopic technique, with each device producing only very small quantities of sweet water. But a 1,600-unit array atop an 8-inch wafer could produce 1 5 liters of water an hour. …

Search by... Author
Show... All Results Primary Sources Peer-reviewed

Oops!

An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.