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…]

Coal Ash Dumps Are Contaminating Groundwater in 22 States

photo: Coal Ash Dumps Contaminating Groundwater in 22 States

Coal ash located at the Possum Point Power Station in Dumfries, Virginia, appears in a photo taken on June 26, 2015. Kate Patterson for The Washington Post via Getty Images

Ten years ago today, the earthen wall of a coal ash impoundment in Kingston, Tennessee, ruptured, sending 1.1 billion gallons of coal ash slurry rushing across the countryside, destroying homes and chocking streams and wetlands with the toxic leftovers from … [more…]

The EPA can’t wait to reopen the mine that poisoned North Idaho

The EPA can't wait to reopen the mine that poisoned North Idaho

Photo: Tubbs Hill on Lake Coeur d’Alene. – Kyle Johnson for Bloomberg Businessweek

The Bunker Hill Mine deposited 75 million tons of toxic sludge in Lake Coeur d’Alene, and the lead and zinc are still flowing.

For a century, the mines of the Coeur d’Alene Mountains in North Idaho produced much of the heavy metals that made the U.S. a global superpower. Starting in the 1880s, through the rise of … [more…]

There’s plastic in your tap water, beer, and table salt

photo: dead bird consumed plastic. There’s plastic in your tap water, beer, and table salt

Photo: An albatross that has succumbed to starvation due to overconsumption of plastic particles. Chris Jordan via Ars Electronica on Flickr.

Kosuth M, Mason SA, Wattenberg EV (2018) Anthropogenic contamination of tap water, beer, and sea salt. PLoS ONE 13(4): e0194970. https://doi.org/10.1371/journal.pone.0194970

You’ve seen it; plastic bottles discarded on the beach, photos of marine life starved on a diet of plastic straws, shopping bags adrift in a flotilla of single-use … [more…]

Water Board Sues IBWC Over Untreated Sewage from Tijuana River

photo: Water Board Sues IBWC Over Untreated Sewage from Tijuana River

The state of California is suing the federal government over untreated sewage in the Tijuana River. NBC 7’s Erika Cervantes is in Imperial Beach with more. (Published Wednesday, Sept. 5, 2018)

Tijuana Sewage Lawsuit Moves Forward

The San Diego Water Board is suing the U.S. section of the International Boundary and Water Commission (IBWC), claiming it is violating the Clean Water Act by not monitoring or stopping untreated waste flowing … [more…]