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:1/13/2016)... 13, 2016 --> ... new market report titled - Biometric Sensors Market - Global ... - 2023. According to the report, the global biometric sensors market was ... to reach US$1,625.8 mn by 2023, expanding at a ... of volume, the biometric sensors market is expected to ...
(Date:1/8/2016)... MANCHESTER, United Kingdom , Jan. 8, 2016   ... diagnostic products, today announced the closing of a $9 million ... Proceeds from the financing will be used to accelerate the ... for detecting early-stage pressure ulcers. United ... receiving CE Mark approval. The device,s introduction has been met ...
(Date:1/7/2016)... -- A United States District Court in Illinois ... to interpret a biometric privacy statute in a decision ... photo website Shutterfly brought by the law firm Carey Rodriguez ... SHUTTERFLY, INC.; and THISLIFE, INC ( N.D. Ill ., ... Illinois Biometric Privacy Act by collecting and scanning face ...
Breaking Biology News(10 mins):
(Date:2/4/2016)... --> --> Q BioMed ... provide the following update on recent corporate developments. ... months we have significantly increased our cash position through several ... result, we have positioned ourselves to execute on the initial ... that development to continue on schedule. --> ...
(Date:2/4/2016)... ... February 04, 2016 , ... ... leading supplier of Semantic Graph Database technology has been recognized As “ Best ... by Corporate America Magazine. , “At Corporate America, it’s our priority to showcase ...
(Date:2/3/2016)... Pa. , Feb. 3, 2016  Discovery ... company focused on developing aerosolized KL4 surfactant therapies ... of Directors has approved an inducement award as ... Fraser , its newly appointed President and Chief ... Board,s Compensation Committee on February 1, 2016 and ...
(Date:2/3/2016)... N.J. , Feb. 3, 2016 ... totaling more than $1 million for researchers in ... working on health-related research that demonstrates exciting potential. ... round of funding for the New Jersey Health Foundation ... faculty members at these educational institutions— Princeton University, ...
Breaking Biology Technology:
Cached News: