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Great Pacific Garbage Patch
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Yaounde, Cameroon (CNN) — Cholera has killed 297 people in the west African nation of Cameroon, health officials said Wednesday.
The outbreak, which began in May, has exceeded 3,000 cases, said Dr. Eric Mintz, the leader of the Centers for Disease Control and Prevention’s global water sanitation and hygiene epidemiology team. The agency has an office in Cameroon.
“It’s a lot of cases and a lot of deaths,” he said in a telephone interview. “More deaths than should be expected under the best of conditions.” Continue reading Cholera kills 297 in Cameroon
| Nanotechnology membrane for high-speed water sterilization |
| (Nanowerk Spotlight) Various nanotechnologies are being researched for applications in water treatmentbecause the removal of bacteria and other organisms from water is an extremely important process, not only for drinking and sanitation but also industrially as biofouling is a commonplace and serious problem. In what could be developed as a a cheap point-of-use water filter for deactivating pathogens in water, or as a new component to be integrated into existing filtration systems to kill microorganisms which cause biofouling in downstream filters, researchers have now demonstrated a textile based device for the high speed electrical sterilization of water. |
| There has been a large amount of work investigating the use of silver nanoparticles for antibacterial treatment of a variety of substrates, including cloth and medical devices. Combining this with recent advances in fabricating three-dimensional nanostructures, Yi Cui, an assistant professor in materials science and engineering, and his collaborators at Stanford University have now demonstrated an exciting new strategy for taking advantage of silver nanowires’ and carbon nanotubes’ unique ability to form complex multiscale coatings on cotton to produce an electrically conducting and high surface area device for the active, high-throughput inactivation of bacteria in water. Continue reading Nano-device sterilizes water using electricity |
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LIVERPOOL, UK — Scientists at Liverpool University have created what is being called “dry water,” a substance that resembles powdered sugar and has several potential commercial applications, according to the Leigh Reporter.
Dry water, which is made up of water droplets coated in silica, has a powerful ability to absorb gases and researchers believe it could be used to mitigate global warming by soaking up carbon dioxide, the article stated. Continue reading ‘Dry water’ no longer an oxymoron
A study by the Miami-Dade County Health Department released Tuesday found seven confirmed and three “probable” cases of people who contracted the water-borne Legionnaires’ disease after staying at the luxurious Epic Hotel and Residences last fall.
In addition, one man, a 57-year-old tourist from England, died in November.
Seven of the ill hotel guests have fully recovered and three others are in the process of recovering, county officials said. One of the guests was from Germany and another from Spain. Continue reading Investigation links Legionnaires’ disease outbreak to luxury hotel
SAN FRANCISCO, September 1, 2010 – They say you never miss the water until the well runs dry, but for those who live too far from the well and get it piped in, the clock is ticking even faster. Few of us are aware that a full 3% of the U.S.’s electric power generation is used for treating, pumping and distributing water. In California, where it’s as high as 19%, many residents save more energy by turning off the tap than by turning off the lights. Water alone has become a crisis-level issue but with cheap, abundant sources of power declining, what will happen if we don’t find ways to reduce how much energy that essential resource consumes? Continue reading $100,000 PRIZE FOR WATER BUSINESSES THAT SAVE ENERGY
(CNN) — The U.S. Environmental Protection Agency investigating drinking water contamination in Pavillion, Wyoming, found benzene and methane in wells and in groundwater, agency officials said.
At a community meeting with well owners, EPA officials revealed Tuesday they found low levels of petroleum compounds in 17 of 19 drinking water wells sampled, and that nearby shallow groundwater was contaminated with high levels of petroleum compounds such as benzene, according to the report. Continue reading EPA finds petroleum compounds in wells, groundwater
While the U.S. Environmental Protection Agency considers whether to impose new federal regulations on coal ash, a new report shows the waste is a bigger problem than previously reported.
WASHINGTON — The U.S. Environmental Protection Agency (EPA) and the U.S. Justice Department today announced that Air Products LLC has agreed to pay nearly $1.5 million in civil penalties to resolve hazardous waste mismanagement violations at its Pasadena, Texas chemical manufacturing facility. The settlement resolves Air Products’ Resource Conservation and Recovery Act (RCRA) violations in transferring spent acid to the neighboring Agrifos fertilizer manufacturing plant. Continue reading U.S. Takes Action to Stop Illegal Acid Waste from Texas Chemical Plant
Removing ammonia from Sacramento’s treated sewage could cost every household in the region an extra $10 a month, according to a new study by economists at University of the Pacific.
Sewage from the region’s 1.4 million residents is treated by the Sacramento Regional County Sanitation District and discharged into theSacramento River near Freeport.
Ammonia remaining in that wastewater, a byproduct of human urine and feces, is suspected of disrupting the food chain in the Sacramento-San Joaquin Delta. Sacramento’s treated sewage is the largest single source of ammonia in theDelta. Continue reading Households may be required to pay for ammonia problem
The Ohio Environmental Protection Agency has reported that tests of public drinking water systems indicate a small amount of microcystin, a liver toxin produced by blue-green algae. The concentration of the toxin is within the safety guidelines set by the World Health Organization, but officials will continue to monitor the waters. Continue reading Ohio EPA Finds Algae Toxins in Public Drinking Water Supplies
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