Image: When phenols, compounds that are commonly found in drinking water, mix with chlorine, hundreds of unknown, potentially toxic byproducts are formed. Credit: Marissa Lanterman/Johns Hopkins University
Mixing drinking water with chlorine, the United States’ most common method of disinfecting drinking water, creates previously unidentified toxic byproducts, says Carsten Prasse from Johns Hopkins University and his collaborators from the University of California, Berkeley and Switzerland.
The researchers’ findings were published … [more…]
FILE PHOTO: Workers walk outside a desalination plant, south of Riyadh, Saudi Arabia, May 2011. REUTERS/Fahad Shadeed
OSLO (Reuters) – Almost 16,000 desalination plants worldwide produce bigger-than-expected flows of highly salty waste water and toxic chemicals that are damaging the environment, a U.N.-backed study said on Monday.
Desalination plants pump out 142 million cubic meters (5 billion cubic feet) of salty brine every day, 50 percent more than previous estimates,
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…]
Photo: Water flows into the Tampa Bay Water desalinization plant off of Big Bend Road in Apollo Beach. Tampa Bay Water is the region’s water utility, but two legislative bills backed by the City of Tampa could threaten the agency. [SKIP O’ROURKE | Times]
CLEARWATER FL — For 20 years, the regional water supply agency known as Tampa Bay Water has provided the state with an example of how local … [more…]