HOME >> BIOLOGY >> NEWS
Imaging apparatus characterizes drops in 'dirty' laboratory environments

CHAMPAIGN, Ill. - A high-fidelity spectrometric system for studying the behavior of drops and particles in industrial flame reactors has been constructed by researchers at the University of Illinois at Urbana-Champaign in collaboration with researchers at the University of Arizona. The instrument was used to study the potential of thermal combustors for reducing the volume of liquid nuclear wastes for safe, long-term storage.

Vitrification of radioactive waste into glassy solids is the most popular approach for disposal. By spraying radioactive sludge into a high-temperature combustor, essentially all the water and other nonradioactive material could be removed, leaving only the radioactive metallic elements to be vitrified for burial. Under optimized conditions, up to 99.99 percent of the metal ions in a waste stream can be scavenged in the combustor.

"That kind of efficiency would be great for most applications, but it's not good enough when dealing with radioactive waste," said Alexander Scheeline, a professor of chemistry at Illinois. "Understanding the cause of the unscavenged fraction and devising a way to reduce it are essential if thermal processing is to be used for nuclear waste treatment."

One possible explanation is that large "rogue" drops are responsible for the unscavenged metals, Scheeline said. These drops do not pass through the hottest zones in the combustor, resulting in only partial vaporization.

To investigate the role of rogue drops in this process, Scheeline and his colleagues -- Illinois postdoctoral researcher Jerry Cabalo, Arizona professor and head of chemical and environmental engineering Jost Wendt, and Arizona graduate student John Schmidt -- developed an optical system to monitor drop sizes and trajectories at very high spatial resolutions.

"In the thermal waste destruction process, small particle formation is also very important," Scheeline said. "Metals released into the gas phase readily
'"/>

Contact: James E. Kloeppel
kloeppel@uiuc.edu
217-244-1073
University of Illinois at Urbana-Champaign
20-Sep-2002


Page: 1 2

Related biology news :

1. Imaging the healing heart
2. Imaging study shows brain maturing
3. Imaging the brain solving problems through insight
4. Imaging technique reveals new structure in retinal cells
5. Imaging technique discovered at Stanford monitors cancer cell proliferation
6. Imaging technique may help in confirming, monitoring treatment of malignant brain tumors
7. Imaging study provides new information on how the brain processes sounds of different tones
8. New Imaging Technique Pinpoints Dead Heart Muscle
9. Imaging Studies Illuminate Brains Response To Cocaine
10. Yale scientists give the Golgi apparatus its own identity, paving the way for more targeted cancer research
11. Procedure, new apparatus may allow relief from incontinence

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:11/12/2019)... ... November 12, 2019 , ... G5, the leader in ... performance up to 25% and reduces cost-per-click by as much as 15%. An ... attribution (MTA) to predict best advertising outcomes and automatically allocate daily ad investments ...
(Date:11/12/2019)... ... November 12, 2019 , ... Atlantic Ultraviolet Corporation ... today that distributors voted their patented automatic and manual wipers the #1 best ... The most frequent maintenance task required of an ultraviolet water purifier is quartz ...
(Date:11/9/2019)... ... ... SiteSeer Technologies, creator of SiteSeer Professional retail site selection software, is pleased ... The boutique real estate developer of single and multi-tenant buildings on sites ranging from ... analysis of markets. , Geoffrey Kerth, manager of GPK Acquisitions, says that his ...
Breaking Biology News(10 mins):
(Date:11/12/2019)... ... November 12, 2019 , ... ... to educate Americans about the deadly healthcare-associated infection C. diff. The campaign, ... of the epidemic, which kills at least 30,000 people in the U.S. each ...
(Date:11/6/2019)... (PRWEB) , ... November 06, 2019 , ... ... leaders through off-the-record collaboration and dialogue, today announces its East/West CEO ... in San Francisco. , Kicking off the week of the ...
(Date:11/5/2019)... ... , ... Ole, a German Shepherd, was demonstrating signs of osteoarthritis in April 2019. He ... level and his willingness to play were normal, it was clear that he was in ... Emergency Animal Hospital and Referral Center in San Diego, California. Dr. Mullen is ...
(Date:11/2/2019)... , ... October 31, 2019 , ... ... by pharma artificial intelligence pioneer tellic. drug360 brings tellic’s expertise in biomedical ... tool allows researchers to quickly uncover relationships between genes, diseases, variants, phenotypes, and ...
Breaking Biology Technology:
Cached News: