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:
(Date:10/29/2014)... those referred to as ,facultative, form part—together with other ... differentiates these cells from the others. However, they have ... to become stem cells again. This phenomenon is something ... cells that stimulate tissue growth, thus allowing the regeneration ... Knowledge of the underlying mechanism that allows these ...
(Date:10/29/2014)... in the living world compete with members of ... how much they invest into their competitive ability. ... get access to high-quality resources, while others seem ... the lower-quality resources that are left over for ... and human societies seems to fluctuate considerably over ...
(Date:10/29/2014)... A new study on a large cohort of kidney ... architecture of the disease -- and reveals an apparent ... kidney cancer, particularly in Romania. , The research, by ... University and Genome Quebec Innovation Centre in Montreal, underscores ... aristolochic acid. The compound, found in plants of the ...
Breaking Biology News(10 mins):A mechanism that allows a differentiated cell to reactivate as a stem cell revealed 2Evolution of competitiveness 2Evolution of competitiveness 3Study sheds light on genetic architecture of kidney cancer 2Study sheds light on genetic architecture of kidney cancer 3
(Date:10/30/2014)... The severe flooding that devastated a wide swath of ... the bridges, roads and other infrastructure had been upgraded ... University of Colorado Denver. , "People need to understand ... PhD, associate professor of structural engineering at the CU ... author the study. "There is an assumption that a ...
(Date:10/27/2014)... 2014 The new research report, ... & Medium), Sub-type (Primary & Secondary), and End-User ... Transportation & Power Generation) - Trends and Forecasts ... with analysis and forecasting of the market size. ... with 52 Figures spread through 146 Pages and ...
(Date:10/27/2014)... WORCESTER, Mass. and TORONTO ... Biotechnology Corporation ( www.generex.com ) (OTCQB: GNBT) today ... the immunological response triggered by its novel proprietary ... of relapse in breast cancer patients. The AE37 ... wholly-owned subsidiary, Antigen Express, Inc. ( www.antigenexpress.com ). ...
(Date:10/27/2014)... 2014 The “Molecular Diagnostic Market ... Technology (PCR, INAAT, DNA Sequencing), End User (Hospital, ... - Global Forecast to 2018” provides a detailed ... current market trends, and strategies impacting the global ... forecasts of the revenue and share analysis. , ...
Breaking Biology Technology:CU Denver study says upgrading infrastructure could reduce flood damage 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 3Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 4Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 2Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 3Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 4Global Molecular Diagnostics Market Will Reach $7.9 Billion by 2018 - New Research Report by MarketsandMarkets 2Global Molecular Diagnostics Market Will Reach $7.9 Billion by 2018 - New Research Report by MarketsandMarkets 3Global Molecular Diagnostics Market Will Reach $7.9 Billion by 2018 - New Research Report by MarketsandMarkets 4Global Molecular Diagnostics Market Will Reach $7.9 Billion by 2018 - New Research Report by MarketsandMarkets 5
Cached News: