 |
|
Compound removes radioactive material from power plant waste
March 13, 2008Strontium 90 is a common radioactive by-product of fission in nuclear power plants. When extracted from the reactor along with other isotopes, a mixture is created made up of the radioactive material and inert ions like sodium and calcium.
Scientists at U.S. Department of Energy's Argonne National Laboratory and Northwestern University have developed a compound that captures the radioactive ions so they can be siphoned off and separated from inert material.
"The layered sulfides used work quite well,' scientist Mercouri Kanatzidis said. "We even surprised ourselves."
This mixture is often incredibly acidic or alkaline, making it difficult to find a compound that can survive long enough to extract the strontium and be able to not react with the sodium, which is harmless.
Kanatzidis and colleague Manolis Manos created a synthetic compound made up of sulfides that can survive in the harsh acidic or alkaline climate of the mixture and strips away 99 percent of the strontium 90.
"The material is remarkably simple and can be created in large quantities at a relatively low cost," Kanatzidis said.
The synthetic compound trades its own potassium ions for strontium and can almost completely replace the radioactive element within a few hours.
The next step is to experiment with the compound's ability to siphon away other common radioactive elements like cesium and uranium.
DOE/Argonne National Laboratory
This mixture is often incredibly acidic or alkaline, making it difficult to find a compound that can survive long enough to extract the strontium and be able to not react with the sodium, which is harmless.
Kanatzidis and colleague Manolis Manos created a synthetic compound made up of sulfides that can survive in the harsh acidic or alkaline climate of the mixture and strips away 99 percent of the strontium 90.
"The material is remarkably simple and can be created in large quantities at a relatively low cost," Kanatzidis said.
The synthetic compound trades its own potassium ions for strontium and can almost completely replace the radioactive element within a few hours.
The next step is to experiment with the compound's ability to siphon away other common radioactive elements like cesium and uranium.
DOE/Argonne National Laboratory
Radioactive Material Current Events and Radioactive Material News RSSStudy shows seed implants a suitable prostate cancer treatment option for men of all ages
Men diagnosed with prostate cancer have a number of treatments to choose from, but it's a daunting task to figure out the right mix of therapies for an individual patient.
Evidence of liquid water in comets reveals possible origin of life
Comets contained vast oceans of liquid water in their interiors during the first million years of their formation, a new study claims.
Remote-control closed system invented for inserting radio-active atoms inside fullerenes
Virginia Tech chemistry Professor Harry C. Dorn, Emory and Henry College chemistry Professor James Duchamp, and Panos Fatouros, professor and chair of the Division of Radiation Physics and Biology at the Virginia Commonwealth University School of Medicine have co-invented a hands-off process for filling fullerenes with radio-active material.
New Approach for Treating Recurrent Prostate Cancer on the Horizon
A new study shows that an alpha-particle emitting radiopeptide-radioactive material bound to a synthetic peptide, a component of protein-is effective for treating prostate cancer in mice.
Hydrogen protects nuclear fuel in final storage
When Sweden's spent nuclear fuel is to be permanently stored, it will be protected by three different barriers. Even if all three barriers are damaged, the nuclear fuel will not dissolve into the groundwater, according to a new doctoral dissertation from Chalmers University of Technology in Sweden.
Accurate Assessment of Heart Disease Leads to Earlier, More Aggressive Therapy
In a study comparing the ability of various medical techniques to accurately determine the extent of heart disease and stratify patients according to disease severity, researchers found that myocardial perfusion testing with gated single photon emission computed tomography (gated SPECT) was a more accurate predictor of prognosis in chronic ischemic heart disease (IHD)-a painful condition caused by a temporary reduction of oxygen-rich blood to the heart.
High dosage brachytherapy obtains excellent results in head and neck tumors
High-dosage perioperative brachytherapy (applied within the surgical process) obtains excellent results in the treatment of head and neck tumours, at the same time as reducing the period of radiation.
New mammography technology effective in detecting breast cancer
A study has found that positron emission mammography (PEM), a new technique for imaging the breast, is not affected by either breast density or a woman's hormonal status, two factors that limit the effectiveness of standard mammography and MRI at detecting cancer.
Cell phone sensors detect radiation to thwart nuclear terrorism
Researchers at Purdue University are working with the state of Indiana to develop a system that would use a network of cell phones to detect and track radiation to help prevent terrorist attacks with radiological "dirty bombs" and nuclear weapons.
Nuclear Medicine Approach Can Be First Choice for Excluding Pulmonary Embolism in Young Women
Young women at risk of having a pulmonary embolism-a potential life-threatening blockage in a lung artery-should first undergo a ventilation/perfusion lung scan (V/Q scan) rather than a CT (computed tomography) angiogram.
More Radioactive Material Current Events and Radioactive Material News Articles
 |
Way of the Blood Drippers by KT Fung (Author) The story in this book, set principally in the nowadays United States, follows two secret agents, Peter Cushing from the United States and Tiffany Li from China, on their adventures to chase after building-leaping, dagger-throwing members of the ultra secret society, the Blood Drippers Clan, in their quest to quell a covert operation that employed unknowing X agents embedded within the United States to carry out deadly missions. Along the way, Peter and Tiffany had to deal with assassinations, deaths and incidents involving the use of radioactive materials as well as a fast-approaching deadline. |
 |
Accuform Signs Adhesive Vinyl "Caution Radioactive Materials" With Graphic 10" X 14" by Accuform Adhesive Vinyl (VS) is ideal for indoor or short-term outdoor self-stick applications. Has a 2-4 year UV resistance. Made of 4-mil thick vinyl with non-glare surface. Moisture-resistant. |
|
CAUTION RADIOACTIVE MATERIALS Bright Neon Green Short-Sleeve T-Shirt - XX-Large by ZeroGravitee | |
 |
Radioactive Material Onesie by Shop Zeus |
 |
Radioactive Material Mug by Design a Product LLC * Custom coffee mugs are dishwasher-safe and microwave-safe. Colors are permanently baked into the mug's surface. * If you have new ideas or need help selecting text for your custom coffee mugs please contact us. * Size: 11 oz. capacity ceramic coffee mug. |
 |
CAUTION RADIOACTIVE MATERIALS (W-GRAPHIC) 10 x 7 Dura Aluma-Lite 10 Yr Sign by Accuform Signs DURA-ALUMALITETM (XL) Ultra-light combined with high-strength makes this composite aluminum sign extremely durable - to withstand tough conditions - indoors and outdoors - from impacts and flexing to abuses such as vandalism. Material Features: 40% lighter than solid aluminum though .118" thick. Stronger than regular aluminum. Printed surface is further protected by polyester over-laminate film for added chemical and scratch resistance. Unique triple-layered composite construction * Service temperature range: -58°F to 175°F. Rounded corners with mounting holes. |
 |
Radioactive I Label Class 7 (Vinyl), 4" X 4" 500 Labels Per Roll vinyl, packaged in rolls of 500 |
![Caution/ Radioactive Materials [14X20 Plastic]](http://ecx.images-amazon.com/images/I/218WXkRCadL._SL160_.jpg) |
Caution/ Radioactive Materials [14X20 Plastic] by Safehouse Signs Caution/ Radioactive Materials [14X20 Plastic] |
 |
The Cool Caveman Also With: ITV Global Entertainment Ltd (Producer) |
 |
Adazon Inc. DL016 Radioactive I 7, D.O.T. Shipping Labels fully conform to HM-181 regulations. Now incorporated into the Performance Oriented Packaging (P.O.P) regulation of D.O.T. 49 CFR. Measure 4" x 4", 500 labels per roll on 1" core. Printed on semi-g by Adazon Inc. D.O.T. Shipping Labels fully conform to HM-181 Regulations, now incorporated into the Performance Oriented Packaging (P.O.P.) regulations of D.O.T. 49 CFR, which requires the proper name, I.D. number and hazardous class of product to be included on each l |
| © 2009 BrightSurf.com |