Abstract
The Savannah River Site is currently developing and testing several processes to treat high level radioactive liquid waste. Each of these processes has a solid-liquid separation process that limits its throughput. Savannah River National Laboratory researchers identified and tested the rotary microfilter as a technology to increase solid-liquid separation throughput. The authors believe the rotary microfilter throughput can be improved by using a better filter membrane. Previous testing showed that asymmetric filters composed of a ceramic membrane on top of a stainless steel support produced higher filter flux than 100% stainless steel symmetric filters in crossflow filter tests. Savannah River National Laboratory and Oak Ridge National Laboratory are working together to develop asymmetric ceramic-stainless steel composite filters and asymmetric 100% stainless steel filters to improve the throughput of the rotary microfilter.
| Original language | English |
|---|---|
| Pages (from-to) | 2108-2114 |
| Number of pages | 7 |
| Journal | Separation Science and Technology (Philadelphia) |
| Volume | 47 |
| Issue number | 14-15 |
| DOIs | |
| State | Published - Jan 2012 |
Funding
The authors wish to thank the U.S. DOE Office of Environmental Management (EM-31) for funding this work. They would also like to thank Henry Bolton for performing the bench-scale filter tests and Dale Adcock and Larry Powell for membrane fabrication and characterization.
Keywords
- composite membranes
- filter media
- filtration
- radioactive liquid waste
- rotary microfilter
- solid-liquid separation