Evaluation of Alternative Filter Media for the Rotary Microfilter

M. R. Poirier, D. T. Herman, R. Bhave

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)2108-2114
Number of pages7
JournalSeparation Science and Technology (Philadelphia)
Volume47
Issue number14-15
DOIs
StatePublished - 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

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