A team of Purdue University researchers says the system, in which sunlight is captured by a parabolic reflector and focused onto a UV-transparent pipe through which water flows continuously, could help the world's 800 million people who lack safe drinking water.
"We've been working on UV disinfection for about 20 years," Ernest R. Blatchley III, a professor of civil engineering, said in a Purdue release Thursday. "All of our work up until a couple years ago dealt with UV systems based on an artificial UV source. What we are working on more recently is using ultraviolet radiation from the sun."
The researchers say there were motivated to develop a practical, inexpensive water-treatment technology for developing nations.
"The water available for people to drink in many developing countries hasn't been treated to remove contaminants, including pathogenic microorganisms," Blatchley said. "As a result, thousands of children die daily from diarrhea and its consequences, including dehydration.
More than 3.1 million bottles of eye drops sold at major retailers, including Walgreens and CVS,...
The abortion rate is holding steady in the US despite total and partial bans in some...
The Supreme Court sided with a Christian counselor on Tuesday in her free speech challenge to...
A new COVID-19 variant, BA.3.2, has been detected in 25 states, according to a recent report...
