Green water-purification system works without heavy metals or corrosive chemicals

Green water-purification system works without heavy metals or corrosive chemicals

This photo shows a concentrator where samples were placed. Credit: Dan Wang

Scientists at the Institute of Process Engineering (IPE) at the Chinese Academy of Sciences in Beijing and Yangzhou University (YZU) in Jiangsu have developed an effective and energy-efficient technique for purifying water by using graphitic carbon nitride sheets.

Their prototype, presented February 7 in the journal Chem, purified pathogen-rich water in 30 min, killing over 99.9999% of … [more…]

Broward County’s Drinking Water Report Doesn’t Address Chemical Testing Question

photo: tap water and drinking glass. Broward County's Drinking Water Report Doesn't Address Chemical Testing Question

A government memo from May 2018 clarified when Florida officials should be testing drinking water for certain types of chemicals called Trihalomethanes.

Broward County released its 2017 water quality report Monday. But the report doesn’t address a water testing controversy around certain dangerous chemicals – called trihalomethanes – that emerged earlier this spring.

The report from the county’s Water and Wastewater Services office shows drinking water across Broward County … [more…]

Solar purifier creates its own disinfectant from water and sunlight

photo: Solar purifier creates its own disinfectant from water and sunlight

Credit: CC0 Public Domain

A hiker gets disoriented while on a desert trek when she comes upon a drying puddle left by a recent rain. Consumed by thirst, miles from home, the hiker must decide whether to drink and risk infection from whatever bacteria are in the puddle, or endure dehydration.

But that hiker might one day be able to drink worry free, thanks to a new kind of water

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Brain-eating amoeba found in Louisiana drinking water again

microscopic photo: Brain-eating amoeba found in Louisiana drinking water again

Shutterstock

A potentially deadly brain-eating amoeba has been detected in a Louisiana neighborhood’s drinking water — the third time the terrifying discovery has been made in the same parish since 2015, reports said.

Naegleria fowleri, which causes fatal brain swelling and tissue destruction, was found over the weekend in Terrebonne Parish, deep in the Louisiana bayou about an hour south of New Orleans, WWL-TV reported.

“It kinda freaks me out … [more…]

Swimming Microbots Kill Waterborne Pathogens

Swimming Microbots Kill Waterborne Pathogens

Swimming microbots purify water by capturing and killing bacteria, before being removed with magnets. Image: American Chemical Society

One of the most serious health risks for people around the world is inadequate access to clean water. Waterborne diseases have devastating impacts on public health—for example, E. coli bacteria cause an estimated 265,000 infections each year in the U.S. Current disinfection methods depend largely on chemicals and disinfectants. However, some pathogens

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