This cheap solar-powered water filter could remove contaminants
Credit: Xiaohui Xu/Princeton University
A new invention that uses sunlight to drive water purification could help solve the problem of providing clean water off the grid.
The device resembles a large sponge that soaks up water but leaves contaminants – like lead, oil and pathogens – behind.
To collect the purified water from the sponge, one simply places it in sunlight. The researchers described the device in a paper published this week in the journal Advanced Materials.
The inspiration for the device came from the pufferfish, a species that takes in water to swell its body when threatened, and then releases water when danger passes, said the device’s co-inventor Rodney Priestley, the Pomeroy and Betty Perry Smith Professor of Chemical and Biological Engineering, and Princeton’s vice dean for innovation.
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Equity and Debt Outlook for March
By IANS |
Published on
Tue, Mar 9 2021 14:27 IST |
3 Views
Global equities continued to trade higher and exhibited unusually broad momentum, delivering 12-month highs on several equities benchmarks up until the middle of the month.
The last two weeks, however, saw broad deleveraging across equities and global asset classes.
Equities saw a global sell-off in risky assets amidst a sharp rise in US bond yields. Investors weighed a rise in bond yields on worries about potential inflation with oil prices at a 12-month high and copper prices near a decade-high. Global growth outlook has been revised higher with economic output expected to grow at 5-6 per cent this year, making it the fastest pace since the mid-80s.
By News Editor And Partners
• Mar 9, 2021
Engineering professors from New Mexico State University have earned the distinction of being among the top 2% of scientists worldwide as measured by the impact of their research publications. The engineering authors were identified in a worldwide database of top scientists created by Stanford University and recently published in the journal Public Library of Science Biology.
“Our faculty are at the forefront of several key research areas in engineering. They are among the best of our peers in terms of research productivity. The number of publications per faculty and number of citations, place our researchers very competitively among our peers,” said Lakshmi N. Reddi, dean of the College of Engineering.