Featured Research

from universities, journals, and other organizations

Lab Works To Make Nuclear 'Gunk' Environmentally Safe

Date:
December 25, 1997
Source:
Mississippi State University
Summary:
A "drum-thunker" and a high-temperature electric torch are helping a Mississippi State laboratory develop ways for America and the world to reduce and safely store nuclear wastes.

STARKVILLE, Miss.--A "drum-thunker" and a high-temperature electric torch are helping a Mississippi State laboratory develop ways for America and the world to reduce and safely store nuclear wastes.

The university's Diagnostic Instrumentation and Analysis Laboratory currently is working with more than $25 million in U.S. Energy Department grants. The research involves new technologies that can reduce environmental threats from both high- and low-level wastes.

"DOE has spent well over $1 billion on the development of new technology for nuclear waste cleanup," said lab director John Plodinec. "Very few of the technologies are actually being used because the right link has not been made between developers and the ultimate users."

He said DIAL--Mississippi State's longest and largest continuous research project--is focusing on the development of technologies involving an electric arc capable of reaching 15,000 degrees Fahrenheit. Known as the plasma torch, it can turn virtually any material, including nuclear waste, into glass.

DIAL researchers also have found new ways to monitor pressure inside drums storing low-level nuclear wastes.

Virtually all high-level nuclear waste in the U.S. comes from the production of Cold War nuclear weapons. "The most dangerous portion of the high-level nuclear waste is in the form of aqueous slurries, commonly referred to as 'gunk' because of their appearance," Plodinec said.

At present, the gunk is stored in large steel tanks in the states of South Carolina, New York and Washington.

Plodinec said DIAL researchers are aiding in the cleanup effort at all three high-level waste sites, as well as at other facilities with low-level radioactive waste.

Low-level waste ranges from the spent fuel rods of nuclear reactors to the protective clothing used by nuclear facility workers. Most is stored in sealed 55-gallon drums.

Plodinec said tank and drum storage continue to be acceptable methods of dealing with nuclear waste, even though more effective solutions have been developed in recent years.

He said DIAL's research is geared to practical applications of new technologies that help storage facilities reduce environmental risks. Projects involving the tremendous heat of a plasma torch are finding effective ways to turn nuclear waste into glass.

Then, there are the problems of pressures that build in drums storing low-level wastes. The most immediate danger here is to personnel handling the barrels.

"As the sealed material breaks down, pressure builds up and creates the possibility of an explosion if the drum is damaged or opened without care," Plodinec explained.

He said researchers Daniel Costley and Mark Henderson have developed a "drum thunker" to test the pressure inside a drum while it is still sealed. The non-intrusive device senses the amount pressure in a drum, which is read with the help of a laptop computer equipped with a soundcard and microphone.

The 'thunker' also can be used to test storage containers in non- nuclear facilities. For instance, DIAL scientists recently tested the device at Lockheed Martin Energy Systems in Paducah, Ky., where some 55-gallon drums of waste material were found to be under pressure.

"The information provided by the tests will enable Lockheed Martin personnel to plan for safer handling of their storage drums," Plodinec said.


Story Source:

The above story is based on materials provided by Mississippi State University. Note: Materials may be edited for content and length.


Cite This Page:

Mississippi State University. "Lab Works To Make Nuclear 'Gunk' Environmentally Safe." ScienceDaily. ScienceDaily, 25 December 1997. <www.sciencedaily.com/releases/1997/12/971225183828.htm>.
Mississippi State University. (1997, December 25). Lab Works To Make Nuclear 'Gunk' Environmentally Safe. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/1997/12/971225183828.htm
Mississippi State University. "Lab Works To Make Nuclear 'Gunk' Environmentally Safe." ScienceDaily. www.sciencedaily.com/releases/1997/12/971225183828.htm (accessed July 31, 2014).

Share This




More Matter & Energy News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Britain Testing Driverless Cars on Roadways

Britain Testing Driverless Cars on Roadways

AP (July 30, 2014) British officials said on Wednesday that driverless cars will be tested on roads in as many as three cities in a trial program set to begin in January. Officials said the tests will last up to three years. (July 30) Video provided by AP
Powered by NewsLook.com
Amid Drought, UCLA Sees Only Water

Amid Drought, UCLA Sees Only Water

AP (July 30, 2014) A ruptured 93-year-old water main left the UCLA campus awash in 8 million gallons of water in the middle of California's worst drought in decades. (July 30) Video provided by AP
Powered by NewsLook.com
Smartphone Powered Paper Plane Debuts at Airshow

Smartphone Powered Paper Plane Debuts at Airshow

AP (July 30, 2014) Smartphone powered paper airplane that was popular on crowdfunding website KickStarter makes its debut at Wisconsin airshow (July 30) Video provided by AP
Powered by NewsLook.com
U.K. To Allow Driverless Cars On Public Roads

U.K. To Allow Driverless Cars On Public Roads

Newsy (July 30, 2014) Driverless cars could soon become a staple on U.K. city streets, as they're set to be introduced to a few cities in 2015. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



      Save/Print:
      Share:

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins