Navigation Links
New paper by Notre Dame researchers describes method for cleaning up nuclear waste
Date:3/20/2012

While the costs associated with storing nuclear waste and the possibility of it leaching into the environment remain legitimate concerns, they may no longer be obstacles on the road to cleaner energy.

A new paper by researchers at the University of Notre Dame, led by Thomas E. Albrecht-Schmitt, professor of civil engineering and geological sciences and concurrent professor of chemistry and biochemistry, showcases Notre Dame Thorium Borate-1 (NDTB-1) as a crystalline compound which can be tailored to safely absorb radioactive ions from nuclear waste streams. Once captured the radioactive ions can then be exchanged for higher charged species of a similar size, recycling the material for re-use.

If one considers that the radionuclide technetium (99Tc) is present in the nuclear waste at most storage sites around the world, the math becomes simple. There are more than 436 nuclear power plants operating in 30 countries; that is a lot of nuclear waste. In fact, approximately 305 metric tons of 99Tc was generated from nuclear reactors and weapons testing from 1943 through 2010. Its safe storage has been an issue for decades.

"The framework of the NDTB-1 is key," says Albrecht-Schmitt. "Each crystal contains a framework of channels and cages featuring billions of tiny pores, which allow for the interchange of anions with a variety of environmental contaminants, especially those used in the nuclear industry, such as chromate and pertechnetate."

Albrecht-Schmitt's team has concluded successful laboratory studies using the NDTB-1 crystals, during which they removed approximately 96 percent of 99Tc. Additional field tests conducted at the Savannah River National Laboratory in Aiken, S.C., and discussed in the paper have shown that the Notre Dame compound successfully removes 99Tc from nuclear waste and also exhibits positive exchange selectivity for greater efficiency.

The paper appears in the journal Advanced Functional Materials.


'/>"/>
Contact: Thomas E. Albrecht-Schmitt
talbrec1@nd.edu
574-631-1872
University of Notre Dame
Source:Eurekalert

Related biology news :

1. New papers offer insights into process of malarial drug resistance
2. French scientist wins the Journal of Experimental Biology Outstanding Paper Prize
3. High school students paper published in prestigious college math journal
4. HSPD-24 White Paper Now Available From WCC Smart Search & Match
5. New paper offers key insights into how new species emerge
6. Researchers win award for best clinical paper in orthopedic physical therapy
7. GSA special paper presents new studies of Western US earth motion
8. Beetle shell inspires brilliant white paper
9. ADA releases updated position paper on vegetarian diets
10. ADA releases position paper on food and water safety
11. Lower-cost solar cells to be printed like newspaper, painted on rooftops
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/29/2017)... CHICAGO , March 29, 2017  higi, the ... ecosystem in North America , today ... Partners and the acquisition of EveryMove. The new investment ... extensive set of tools to transform population health activities ... and lifestyle data. higi collects and secures ...
(Date:3/24/2017)... 24, 2017 Research and Markets has announced ... Analysis & Trends - Industry Forecast to 2025" report to ... The ... a CAGR of around 15.1% over the next decade to reach ... analyzes the market estimates and forecasts for all the given segments ...
(Date:3/22/2017)... Optimove , provider of the ... as 1-800-Flowers and AdoreMe, today announced two new ... Using Optimove,s machine learning algorithms, these features allow ... recommendations to their customers based not just on ... intent drawn from a complex web of data ...
Breaking Biology News(10 mins):
(Date:6/23/2017)... ... 23, 2017 , ... The Academy of Model Aeronautics (AMA), ... Association (UAA), the unifying voice for collegiate aviation education, are launching a joint ... and success through a STEM-based education platform. , Much like the program currently ...
(Date:6/22/2017)... ... June 21, 2017 , ... RMC Pharmaceutical Solutions, Inc. ... Timothy Reinhardt to manage the new site. , Tim has 25 years of ... most recent role as the Director of Manufacturing and Supplier Quality Assessment. ...
(Date:6/22/2017)... Wendelsheim, Germany (PRWEB) , ... June 22, 2017 ... ... , is taking over the allergy specialists DST Diagnostische Systeme & Technologien GmbH, ... We all know someone who suffers from hay fever, urticaria, asthma, atopic eczema ...
(Date:6/22/2017)... ... June 22, 2017 , ... ... RegMedNet has produced a Spotlight series on “Cell Therapy ... and perspectives by leading experts on the unique regulatory challenges of stem cell ...
Breaking Biology Technology: