Uranium Current Events

Uranium Current Events, Uranium News Articles.
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Using waste to recover waste uranium
Using bacteria and inositol phosphate, a chemical analogue of a cheap waste material from plants, researchers at Birmingham University have recovered uranium from the polluted waters from uranium mines. The same technology can also be used to clean up nuclear waste. Professor Lynne Macaskie, this week presented the group's work to the Society for General Microbiology's meeting at Heriot-Watt University, Edinburgh. (2009-09-06)

UK Army personnel involved in Iraqi invasion not at risk from depleted uranium
Army personnel involved in the Iraqi invasion of 2003 have not absorbed dangerous levels of depleted uranium, finds research published ahead of print in Occupational and Environmental Medicine. (2007-07-02)

Scientists find safer ways to detect uranium minerals
The threat of (2006-11-20)

Tests to reveal levels of depleted uranium in army personnel
UNiversity of Leicester scientists develop test used by UK Government to assess levels of depleted uranium in Army personnel. (2007-03-05)

Uranium (IV) found to be mobile in a natural wetland
EPFL researchers studying a natural wetland near a decommissioned uranium mine in Limousin, France, have shown that under certain circumstances the uranium present in the wetland could be more mobile than previously believed. (2013-12-17)

Cold shot
Scientists have long known that uranium salts under ultraviolet light will glow an eerie greenish-yellow. The resolution of the spectral fingerprint becomes sharper as the temperature falls. Researchers at the Pacific Northwest National Laboratory have now begun to exploit this quirk to hunt for previously hidden uranium in contaminated soils, they report at American Chemical Society national meeting. (2006-09-12)

Uranium isotopes carry the fingerprint of ancient bacterial activity
The oceans contain billions of tons of dissolved uranium. Over the planet's history, some of this uranium was transformed into an insoluble form, causing it to precipitate and accumulate in sediments. This can occur through the action of live organisms or by interacting with certain minerals. Knowing which pathway was taken can provide insight into ancient bacterial activity. Publishing in PNAS, a team of researchers describes a new method to distinguish between the pathways. (2015-04-20)

Fungi have a hand in depleted uranium's environmental fate
Fungi may have an important role to play in the fate of potentially dangerous depleted uranium left in the environment after recent war campaigns, according to a new report in the May 6 issue of Current Biology, a publication of Cell Press. The researchers found evidence that fungi can (2008-05-05)

How seawater could corrode nuclear fuel
Japan used seawater to cool nuclear fuel at the stricken Fukushima-Daiichi nuclear plant after the tsunami in March 2011 -- and that was probably the best action to take at the time, says Professor Alexandra Navrotsky at UC Davis. But Navrotsky and others have since discovered a new way in which seawater can corrode nuclear fuel, forming uranium compounds that could potentially travel long distances, either in solution or as very small particles. (2012-01-26)

Bacteria could help clean groundwater contaminated by uranium ore processing
A strain of bacteria that 'breathes' uranium may hold the key to cleaning up polluted groundwater at sites where uranium ore was processed to make nuclear weapons. A team of scientists discovered the bacteria in soil at an old uranium ore mill in Rifle, Colorado. The research is part of a US Department of Energy program to see if microorganisms can lock up uranium that leached into the soil years ago. (2015-06-15)

Unused stockpiles of nuclear waste could be more useful than we might think
Chemists have found a new use for the waste product of nuclear power -- transforming an unused stockpile into a versatile compound which could be used to create valuable commodity chemicals as well as new energy sources. (2020-01-10)

MIT: Lack of fuel may limit US nuclear power expansion
Limited supplies of fuel for nuclear power plants may thwart the renewed and growing interest in nuclear energy in the United States and other nations, says an MIT expert on the industry. (2007-03-21)

Uranium toxicity may be causing high rates of obesity and diabetes in Kuwait
Kuwait has some of the highest rates of obesity and diabetes in the world, and scientists don't know why. This question was addressed by Dr. Max Goodson, Emeritus Professor at the Forsyth Institute. (2019-07-08)

Several tons of uranium and a town called Colonie
Recent research by the Department of Geology at University of Leicester, and at the British Geological Survey aims to improve understanding of how depleted uranium particulate behaves in the environment. Ph.D. research student Nicholas Lloyd has identified uranium oxide particulate that has survived more than 25 years in the environment, and depleted uranium contamination nearly 6 km from point of release. (2007-06-26)

Investigating ocean currents using uranium-236 from the 1960s
Stephan Winkler, Isotope researcher at the University of Vienna, has identified the bomb-pulse of uranium-236 in corals from the Caribbean Sea for the first time. 236U was distributed world-wide in the period of atmospheric nuclear testing in the 1960s. Readily dissolved in seawater it is an ideal tool for investigating ocean currents. (2012-12-17)

Uranium isotope ratios are not invariant, researchers show
For years, the ratio of uranium's two long-lived isotopes, U-235 and U-238, has been considered invariant, despite measurements made in the mid-1970s that hinted otherwise. Now, with improved precision from state-of-the-art instrumentation, researchers at the University of Illinois unequivocally show this ratio actually does vary significantly in Earth materials. (2007-10-23)

Uranium encapsulation process receives patent
Scientists at Brookhaven Lab have been awarded a patent for encapsulating depleted uranium oxides in thermoplastic polymers. The process converts depleted uranium to a form that is both stable and safe for long-term disposal, and which can be molded for use as radiation shielding or counter weights for airplanes, helicopters and ships. (2000-07-17)

Russia's use and stockpiles of highly enriched uranium pose significant nuclear risks
Russia currently holds the world's largest stockpile of highly enriched uranium, a nuclear weapon-usable material, posing significant nuclear security risks, according to a new Princeton University report. (2017-09-13)

Uranium to replace plastic? Chemistry breakthrough could pave the way for new materials
Uranium can perform reactions that previously no one thought possible, which could transform the way industry makes bulk chemicals, polymers, and the precursors to new drugs and plastics, according to new findings from The University of Manchester. (2017-12-01)

A pocketful of uranium
Researchers led by Chuan He at the University of Chicago and Argonne National Laboratory have developed a protein that binds to uranium selectively and tightly -- a simple, effective methods for the sensitive detection and effective treatment of uranium poisoning. (2009-02-12)

Nuclear CSI: Noninvasive procedure could identify criminal nuclear activity
Determining if an individual has handled nuclear materials is a challenge national defense agencies currently face. The standard protocol to detect uranium exposure is through a urine sample; however, urine is able to only identify those who have been recently exposed. Now, scientists at the University of Missouri have developed procedures that will better identify individuals exposed to uranium within one year. Scientists and homeland security experts believe this noninvasive procedure could identify individuals who may be smuggling nuclear materials for criminal purposes. (2016-11-01)

A new twist on uranium's origin story, by CSU scientists
Colorado State University biogeochemists found biogenic, non-crystalline uranium occurring naturally in a Wyoming roll front, offering new clues to the mineral's origins. (2017-06-01)

Opening the doors to Iran's nuclear program
Opening Iran's national uranium enrichment plant to multinational involvement could limit the long-term risks of Iran's nuclear program as restrictions on it expire, according to this Policy Forum. (2015-06-18)

Uranium in mine dust could dissolve in human lungs
New Mexico contains hundreds of historic uranium mines. Although active uranium mining in the state has ceased, rates of cardiovascular and metabolic disease remain high in the population residing close to mines within the Navajo Nation. According to a new study in ACS' journal Environmental Science & Technology Letters, inhaled uranium in dusts from the mines could be a factor. (2018-12-05)

Trap and neutralize: A new way to clean contaminated groundwater
A team of researchers from Washington University in St. Louis have helped discover a new chemical method to immobilize uranium in contaminated groundwater, which could lead to more precise and successful water remediation efforts at former nuclear sites. (2016-04-13)

Boosting armor for nuclear-waste eating microbes
A microbe developed to clean up nuclear waste and patented by a Michigan State University researcher has just been improved. In earlier research, Gemma Reguera, Michigan State University microbiologist, identified that Geobacter bacteria's tiny conductive hair-like appendages, or pili, did the yeoman's share of remediation. By increasing the strength of the pili nanowires, she improved their ability to clean up uranium and other toxic wastes. (2014-09-12)

Some Chinese coal ash too radioactive for reuse
Many manufacturers use coal ash from power plants as a low-cost binding agent in concrete and other building materials. But a new study finds that coal ash from high-uranium deposits in China is too radioactive for this use. Some coal ash analyzed in the study contained radiation 43 times higher than the maximum safe limit set for residential building materials by the U.N. Scientific Committee on the Effects of Atomic Radiation. (2017-11-09)

Russian scientists suggested a transfer to safe nuclear energy
Scientists from Far Eastern Federal University (FEFU), Ozersk Technological Institute, and the Russian Academy of Sciences have improved a processing technology of a monazite concentrate which is a mineral raw material employed as a source of rare earth elements and thorium. The latter, in turn, is a part of the thorium-uranium fuel cycle that is more eco-friendly compared to the one based on uranium and plutonium. A related article appears in Energies. (2020-10-19)

Laser-produced uranium plasma evolves into more complex species
When energy is added to uranium under pressure, it creates a shock wave, and even a tiny sample will be vaporized like a small explosion. By using smaller, controlled explosions, physicists can test on a microscale what could previously be tested only in larger, more dangerous experiments. In a recent experiment, scientists used a laser to ablate atomic uranium while recording chemical reactions as the plasma cooled, oxidized and formed species of more complex uranium. (2019-08-23)

Butterfly molecule may aid quest for nuclear clean-up technology
Scientists have produced a previously unseen uranium molecule, in a development that could help improve clean-up processes for nuclear waste. (2012-03-12)

Study: 2 major US aquifers contaminated by natural uranium
New study shows that nearly two million people in California and the Great Plains live above aquifers contaminated by uranium at concentrations up to 89 percent of the EPA standard. Central Valley aquifer and the High Plains aquifer are affected. Researchers found that uranium naturally occurring in soil is being released by bacteria and chemical processes triggered by nitrate, a groundwater pollutant originating mainly from chemical fertilizers and animal waste. (2015-08-17)

Widespread uranium contamination found in India's groundwater
A Duke-led study has found widespread uranium contamination in groundwater aquifers -- a chief source for drinking water and irrigation -- in 16 Indian states. The primary source of the contamination is natural, but human factors such as groundwater-table depletion and nitrate pollution may exacerbate the problem. Studies have linked exposure to uranium in drinking water to chronic kidney disease. (2018-06-07)

New study allows regional prediction of uranium in groundwater
Stanford researchers can predict where and when uranium is released into aquifers and suggest an easy fix to keep this naturally occurring toxin from contaminating water sources. (2020-12-08)

How to measure oxygen coefficient in complex oxides
The international team of scientists, consisting of chemists from the Lomonosov Moscow State University, has devised a technique, which allows determination of oxidation states of uranium in complex oxides. To work out this technique X-ray photoelectron spectroscopy data were used for the first time ever. The research is published in a top-rated journal, Inorganic Chemistry. (2016-10-11)

Two simple building blocks produce complex 3-D material
Northwestern University scientists have built a structurally complex material from two simple building blocks that is the lowest-density metal-organic framework ever made. Directed by design rules developed by the scientists, uranium atoms and organic linkers self-assemble into a beautiful crystal -- a large, airy 3-D net of very roomy and useful pores. The pores are so roomy, in fact, that the scientists have nestled a large enzyme inside a pore -- no small feat. (2017-05-22)

New technique could lead to safer, more efficient uranium extraction
The separation of uranium, a key part of the nuclear fuel cycle, could potentially be done more safely and efficiently through a new technique developed by chemistry researchers at Oregon State University. (2017-01-26)

A voyage from the Earth's crust to its mantle and back again
Uranium isotopes leave a distinct 'fingerprint' in the sources of volcanic rocks, making it possible to gauge their age and origin. Geologists have gained a new understanding of how the Earth's crust is recycled back into its interior based on these uranium isotopes. (2015-01-19)

Patience pays off with methanol for uranium bioremediation
Uranium contamination is a devastating legacy of nuclear weapon and energy development, but new testing has shown that adding organic molecules can positively affect the bioremediation of this uranium, converting it to a solid mineral and sequestering it within the sediment. (2009-02-23)

'Fracking' mobilizes uranium in marcellus shale
University at Buffalo researchers have found that hydraulic fracturing or (2010-10-25)

'Trophy molecule' breakthrough for Nottingham scientists
Experts at the University of Nottingham are the first to create a stable version of a (2012-07-02)

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