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:3/22/2017)... , March 21, 2017 Optimove ... used by retailers such as 1-800-Flowers and AdoreMe, ... — Product Recommendations and Replenishment. Using Optimove,s machine learning ... personalized product and replenishment recommendations to their customers ... on predictions of customer intent drawn from a ...
(Date:3/16/2017)... CeBIT 2017 - Against identity fraud with DERMALOG solutions "Made in Germany ... ... one project, multi-biometric solutions provide a crucial contribution against identity fraud. (PRNewsFoto/Dermalog Identification Systems) ... Used combined in one project, multi-biometric solutions provide a crucial contribution ... ...
(Date:3/7/2017)... -- Brandwatch , the leading social intelligence company, today announces ... to uncover insights to support its reporting, help direct future campaigns, ... leading youth charity will be using Brandwatch Analytics social listening and ... understanding of the topics and issues that are a priority for ... "Until ...
Breaking Biology News(10 mins):
(Date:3/23/2017)... Kineta, Inc., a biotechnology company focused ... immuno-oncology, today announced the discovery and characterization of ... activate interferon response factor 3 (IRF3) via RIG-I ... regression in a murine colon carcinoma mouse model.  ... tumor regression to initial drug treatment were resistant ...
(Date:3/23/2017)... March 23, 2017  Agriculture technology company Cool Planet ... and note conversion to commercialize its Cool Terra and ... on developing products that are simultaneously profitable as well ... the last 18 months. This latest round of funding ... Partners. The company,s primary product, Cool ...
(Date:3/22/2017)... 2017 Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN), today announced ... U.K. Biobank and GSK to generate genetic sequence data from ... initiative will enable researchers to gain valuable insights to support ... range of serious and life threatening diseases. ... Genetic evidence has ...
(Date:3/22/2017)... , March 22, 2017  UBM and ... to announce their extended partnership and the third ... headlined by the 21 st Annual MassMEDIC ... taking place May 3-4, 2017. ... Technology Association (ADVAMED) President and CEO, Scott ...
Breaking Biology Technology: