Navigation Links
SRNL filter design reduces waste treatment costs
Date:1/25/2011

The redesign of a filtration system by the U.S. Department of Energy's Savannah River National Laboratory (SRNL) is expected to help the DOE Office of Environmental Management drastically reduce cost and infrastructure for the treatment and permanent disposal of its inventory of high level radioactive waste. The U.S. Patent Office has recently allowed a patent on the reconfiguration of a commercial rotary filter, which has also been licensed by the company that produced the original system two important steps in putting this technology into the marketplace for use by other potential customers.

SRNL, which is operated for DOE by Savannah River Nuclear Solutions, LLC, is the DOE Office of Environmental Management's (DOE-EM) applied research and development national laboratory. DOE-EM's Office of Technology, Innovation and Development (OTID) provided funding for SRNL to explore ways to separate solid material from radioactive liquid waste. Removing solids would allow large quantities of salt waste to be decontaminated for disposal, and also concentrate the solids, leaving a much smaller volume requiring expensive treatment and disposal as high-level waste.

SRNL examined different filtration methods, and found that a rotary microfilter patented by SpinTek offered filtration rates that were higher than a traditional crossflow filter could provide. As originally designed, however, the rotary microfilter was not suited for use with radioactive waste, so SRNL adapted the system for deployment within the DOE complex.

"DOE-OTID funded us to take that rotary microfilter design, and, working with the folks at SpinTek, develop a version that could be used in a highly radioactive environment," says Dave Herman, who along with David Maxwell designed the reconfigured filter system. "We changed some of the materials of construction from polymers, which don't hold up under radioactive use, to stainless steel. We also made changes in the design so that the unit didn't require hands-on maintenance, which would be a problem in a radioactive waste facility." The redesign consolidates internal parts of the system, allowing an entire stack of 25 filter disks and other parts to be removed as a single piece.

The initial need for the filtration system was to treat the Savannah River Site's salt waste solutions. SRNL, in collaboration with Oak Ridge National Laboratory and the Savannah River Site's liquid waste operations contractor, Savannah River Remediation, designed a module that allows two or four rotary microfilter systems to be inserted into an existing waste tank. This module eliminates the need to construct a new facility for the filtration process. As the system filters the waste, the liquid filtrate is transferred out of the tank for treatment and disposal, and the concentrated solids are returned to the tank.

SRNL is now testing the rotary microfilter for use to treat the Hanford Site's tank waste. SpinTek's license of the SRNL adaptation will allow this version of the technology to be made available for other potential users.


'/>"/>

Contact: Angie French
angeline.french@srnl.doe.gov
803-725-2854
DOE/Savannah River National Laboratory
Source:Eurekalert  

Related biology news :

1. Filtering kitchen wastewater for plants
2. Exposure of humans to cosmetic UV filters is widespread
3. Charcoal biofilter cleans up fertilizer waste gases
4. Electrified nano filter promises to cut costs for clean drinking water
5. The jellyfish-like salp: Most efficient filter-feeder in the deep, scientists discover
6. Compost filter socks improve runoff from croplands
7. Pitt researcher says simple polymer-based filter successfully cleans water, recovers oil in Gulf of Mexico tests
8. Polymer-based filter successfully cleans water, recovers oil in Gulf of Mexico test
9. Blue light-filtering increases macular pigment, may protect against age-related vision loss
10. New filtering technology has environmental, industrial applications
11. Biological sand filters, a practical approach to combat poverty and inequality
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
SRNL filter design reduces waste treatment costs
(Date:4/3/2017)... April 3, 2017  Data captured by ... platform, detected a statistically significant association between ... to treatment and objective response of cancer ... to predict whether cancer patients will respond ... as well as to improve both pre-infusion potency ...
(Date:3/29/2017)...  higi, the health IT company that operates the ... , today announced a Series B investment from ... The new investment and acquisition accelerates higi,s strategy to ... population health activities through the collection and workflow integration ... collects and secures data today on behalf of over ...
(Date:3/24/2017)... -- Research and Markets has announced the addition of ... - Industry Forecast to 2025" report to their offering. ... The Global Biometric Vehicle ... around 15.1% over the next decade to reach approximately $1,580 million ... estimates and forecasts for all the given segments on global as ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... International research firm Parks Associates announced today that Tom ... 2017 Annual Meeting , October 11 in Scottsdale, Arizona ... and how smart safety and security products impact the competitive landscape. ... Parks Associates: Smart Home Devices: Main Purchase Driver ... "The residential security market has experienced continued growth, and ...
(Date:10/10/2017)... ... October 10, 2017 , ... The Pittcon Program Committee ... honoring scientists who have made outstanding contributions to analytical chemistry and applied ... the world’s leading conference and exposition for laboratory science, which will be held ...
(Date:10/9/2017)... ... October 09, 2017 , ... At its national board meeting in ... professor in Harvard University’s Departments of Physics and Astronomy, has been selected for membership ... the winning team for the 2015 Breakthrough Prize in Fundamental physics for the discovery ...
(Date:10/7/2017)... ... October 06, 2017 , ... ... applications consulting for microscopy and surface analysis, Nanoscience Instruments is now expanding ... offers a broad range of contract analysis services for advanced applications. Services ...
Breaking Biology Technology: