Micron-pore-sized metallic filter tube membranes for filtration of particulates and water purification

Phelps, Tommy Joe; Palumbo, Anthony Vito; Fagan, Lisa Anne; Bischoff, Brian L; Miller, Curtis Jack; Drake, Meghan M; Judkins, Roddie Reagan

doi:10.1016/j.mimet.2007.08.005

Title: Micron-pore-sized metallic filter tube membranes for filtration of particulates and water purification

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Abstract

Robust filtering techniques capable of efficiently removing particulates and biological agents from water or air suffer from plugging, poor rejuvenation, low permeance, and high backpressure. Operational characteristics of pressure-driven separations are in part controlled by the membrane pore size, charge of particulates, transmembrane pressure and the requirement for sufficient water flux to overcome fouling. With long term use filters decline in permeance due to filter-cake plugging of pores, fouling, or filter deterioration. Though metallic filter tube development at ORNL has focused almost exclusively on gas separations, a small study examined the applicability of these membranes for tangential filtering of aqueous suspensions of bacterial-sized particles. A mixture of fluorescent polystyrene microspheres ranging in size from 0.5 to 6 {micro}m in diameter simulated microorganisms in filtration studies. Compared to a commercial filter, the ORNL 0.6 {micro}m filter averaged approximately 10-fold greater filtration efficiency of the small particles, several-fold greater permeance after considerable use and it returned to approximately 85% of the initial flow upon backflushing versus 30% for the commercial filter. After filtering several liters of the particle-containing suspension, the ORNL composite filter still exhibited greater than 50% of its initial permeance while the commercial filter had decreased to less than 20%.more »« less

Authors:

Phelps, Tommy Joe ^[1]; Palumbo, Anthony Vito ^[1]; Fagan, Lisa Anne ^[1]; Bischoff, Brian L ^[1]; Miller, Curtis Jack ^[1]; Drake, Meghan M ^[1]; Judkins, Roddie Reagan ^[1]

ORNL

Publication Date:: Tue Jan 01 00:00:00 EST 2008

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: FE USDOE - Office of Fossil Energy (FE)

OSTI Identifier:: 936298

DOE Contract Number:: DE-AC05-00OR22725

Resource Type:: Journal Article

Journal Name:: Journal of Microbiological Methods

Additional Journal Information:: Journal Volume: 74; Journal Issue: 1; Journal ID: ISSN 0167-7012

Country of Publication:: United States

Language:: English

Subject:: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; FILTERS; FILTRATION; FOULING; MEMBRANE PORES; MEMBRANES; MICROORGANISMS; PARTICULATES; PERFORMANCE; FLOW BLOCKAGE; PURIFICATION; WATER

Citation Formats


                    Phelps, Tommy Joe, Palumbo, Anthony Vito, Fagan, Lisa Anne, Bischoff, Brian L, Miller, Curtis Jack, Drake, Meghan M, and Judkins, Roddie Reagan. Micron-pore-sized metallic filter tube membranes for filtration of particulates and water purification.  United States: N. p., 2008. 
        Web.  doi:10.1016/j.mimet.2007.08.005.

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                    Phelps, Tommy Joe, Palumbo, Anthony Vito, Fagan, Lisa Anne, Bischoff, Brian L, Miller, Curtis Jack, Drake, Meghan M, & Judkins, Roddie Reagan. Micron-pore-sized metallic filter tube membranes for filtration of particulates and water purification.  United States.  https://doi.org/10.1016/j.mimet.2007.08.005

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                    Phelps, Tommy Joe, Palumbo, Anthony Vito, Fagan, Lisa Anne, Bischoff, Brian L, Miller, Curtis Jack, Drake, Meghan M, and Judkins, Roddie Reagan. 2008.  
        "Micron-pore-sized metallic filter tube membranes for filtration of particulates and water purification".  United States.  https://doi.org/10.1016/j.mimet.2007.08.005.

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@article{osti_936298,

  title        = {Micron-pore-sized metallic filter tube membranes for filtration of particulates and water purification},

  author       = {Phelps, Tommy Joe and Palumbo, Anthony Vito and Fagan, Lisa Anne and Bischoff, Brian L and Miller, Curtis Jack and Drake, Meghan M and Judkins, Roddie Reagan},

  abstractNote = {Robust filtering techniques capable of efficiently removing particulates and biological agents from water or air suffer from plugging, poor rejuvenation, low permeance, and high backpressure. Operational characteristics of pressure-driven separations are in part controlled by the membrane pore size, charge of particulates, transmembrane pressure and the requirement for sufficient water flux to overcome fouling. With long term use filters decline in permeance due to filter-cake plugging of pores, fouling, or filter deterioration. Though metallic filter tube development at ORNL has focused almost exclusively on gas separations, a small study examined the applicability of these membranes for tangential filtering of aqueous suspensions of bacterial-sized particles. A mixture of fluorescent polystyrene microspheres ranging in size from 0.5 to 6 {micro}m in diameter simulated microorganisms in filtration studies. Compared to a commercial filter, the ORNL 0.6 {micro}m filter averaged approximately 10-fold greater filtration efficiency of the small particles, several-fold greater permeance after considerable use and it returned to approximately 85% of the initial flow upon backflushing versus 30% for the commercial filter. After filtering several liters of the particle-containing suspension, the ORNL composite filter still exhibited greater than 50% of its initial permeance while the commercial filter had decreased to less than 20%. When considering a greater filtration efficiency, greater permeance per unit mass, greater percentage of rejuvenation upon backflushing (up to 3-fold), and likely greater performance with extended use, the ORNL 0.6 {micro}m filters can potentially outperform the commercial filter by factors of 100-1000 fold.},

  doi          = {10.1016/j.mimet.2007.08.005},

  url          = {https://www.osti.gov/biblio/936298},
  journal      = {Journal of Microbiological Methods},

  issn         = {0167-7012},

  number       = 1,

  volume       = 74,

  place        = {United States},

  year         = {Tue Jan 01 00:00:00 EST 2008},

  month        = {Tue Jan 01 00:00:00 EST 2008}

}

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