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:3/22/2016)... and SANDY, Utah , ... which operates the highest sample volume laboratory in ... Genomics and UNIConnect, leaders in clinical sequencing informatics and ... launch of a project to establish the informatics infrastructure ... NSO has been contracted by the Ontario ...
(Date:3/15/2016)... , March 15, 2016 Yissum ... , the technology-transfer company of the Hebrew University, announced ... of remote sensing technology of various human biological indicators. ... raising $2.0 million from private investors. ... based on the detection of electromagnetic emissions from sweat ...
(Date:3/10/2016)... 10, 2016 --> ... report "Identity and Access Management Market by Component (Provisioning, ... Governance), by Organization Size, by Deployment, by Vertical, and ... MarketsandMarkets, The market is estimated to grow from USD ... 2020, at a Compound Annual Growth Rate (CAGR) of ...
Breaking Biology News(10 mins):
(Date:5/26/2016)... -- Despite the volatility that continues to envelop ... pre-market research on ActiveWallSt.com directs the investor community,s focus on ... RDUS ), Cerus Corp. (NASDAQ: CERS ), Arrowhead ... Therapeutics Inc. (NASDAQ: FPRX ). Register with us ... http://www.activewallst.com/ On Wednesday, shares in ...
(Date:5/25/2016)... ... 2016 , ... Thailand’s Board of Investment’s New York office, ... Located at booth number 7301, representatives from the Thai Government, research organizations, and ... biotechnology and life sciences sector. , Deputy Secretary General of the Thailand ...
(Date:5/25/2016)... ... 25, 2016 , ... WEDI, the nation’s leading authority on the use of ... Stellar has been named by the WEDI Board of Directors as WEDI’s president and ... leader with more than 35 years of experience in healthcare, association management and organizational ...
(Date:5/24/2016)... ... May 24, 2016 , ... Last week, Callan Capital, an integrated wealth management ... The Future of San Diego Life Science event at the Estancia La Jolla Resort ... the event with speakers Dr. Rich Heyman, former CEO of Aragon and Seragon, and ...
Breaking Biology Technology:
Cached News: