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…]
Well water injected with hydrogen peroxide passes through UV/AOP Reactors at Tucson Water’s Advanced Oxidation Process Water Treatment facility near Irvington and I-19 on Sept. 26, 2018. Ultraviolet light, used in concert with hydrogen peroxide, creates a photochemical process that breaks down 1,4-dioxane molecules into harmless components. Water treated at AOP is passed to the older TARP facility to remove TCE. Rick Wiley / Arizona Daily Star
Tucson Water recently
Photo: CC0 Public Domain
A painful sunburn can ruin a vacation, and too much sun can also lead to more serious problems like premature skin aging and melanoma. Therefore, manufacturers have added ultraviolet (UV) filters to many personal care products, including sunscreens, moisturizers and makeup.
Scientists have detected these substances in the environment, but most studies have concluded that individual sunscreen chemicals are not present at high-enough levels to harm … [more…]