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:4/28/2016)... BANGALORE, India , April 28, 2016 ... subsidiary of Infosys (NYSE: INFY ), and Samsung ... global partnership that will provide end customers with a ... and payment services.      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ... for financial services, but it also plays a fundamental part ...
(Date:4/19/2016)... , UAE, April 20, 2016 ... implemented as a compact web-based "all-in-one" system solution for ... biometric fingerprint reader or the door interface with integration ... modern access control systems. The minimal dimensions of the ... readers into the building installations offer considerable freedom of ...
(Date:4/13/2016)... physicians supporting Medicaid patients in Central Florida ... telehealth thanks to a new partnership with higi.   ... can routinely track key health measurements, such as blood ... they opt in, share them with IMPOWER clinicians through ... location at no cost. By leveraging this data, IMPOWER ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... ... June 27, 2016 , ... Parallel 6 , ... announced today the Clinical Reach Virtual Patient Encounter CONSULT module which enables ... the physician and clinical trial team. , Using the CONSULT module, patients and physicians ...
(Date:6/27/2016)... June 27, 2016   Ginkgo Bioworks , a ... engineering, was today awarded as one of the ... the world,s most innovative companies. Ginkgo Bioworks is ... the real world in the nutrition, health and ... directly with customers including Fortune 500 companies to ...
(Date:6/24/2016)... Raleigh, NC (PRWEB) , ... June 24, 2016 , ... ... find the most commonly-identified miRNAs in people with peritoneal or pleural mesothelioma. Their findings ... here to read it now. , Diagnostic biomarkers are signposts in the blood, ...
(Date:6/23/2016)... - FACIT has announced the creation of a ... Propellon Therapeutics Inc. ("Propellon" or "the Company"), to ... of first-in-class WDR5 inhibitors for the treatment of ... an exciting class of therapies, possessing the potential ... patients. Substantial advances have been achieved with the ...
Breaking Biology Technology: