skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Membraneless seawater desalination

Abstract

Disclosed are microfluidic devices and systems for the desalination of water. The devices and systems can include an electrode configured to generate an electric field gradient in proximity to an intersection formed by the divergence of two microfluidic channels from an inlet channel. Under an applied bias and in the presence of a pressure driven flow of saltwater, the electric field gradient can preferentially direct ions in saltwater into one of the diverging microfluidic channels, while desalted water flows into second diverging channel. Also provided are methods of using the devices and systems described herein to decrease the salinity of water.

Inventors:
; ;
Issue Date:
Research Org.:
Board of Regents, The University of Texas System, Austin, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1433371
Patent Number(s):
9,932,251
Application Number:
14/136,541
Assignee:
Board of Regents, The University of Texas System (Austin, TX) EE-LIBRARY
DOE Contract Number:  
FG02-06ER15758
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Dec 20
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Crooks, Richard A., Knust, Kyle N., and Perdue, Robbyn K. Membraneless seawater desalination. United States: N. p., 2018. Web.
Crooks, Richard A., Knust, Kyle N., & Perdue, Robbyn K. Membraneless seawater desalination. United States.
Crooks, Richard A., Knust, Kyle N., and Perdue, Robbyn K. Tue . "Membraneless seawater desalination". United States. https://www.osti.gov/servlets/purl/1433371.
@article{osti_1433371,
title = {Membraneless seawater desalination},
author = {Crooks, Richard A. and Knust, Kyle N. and Perdue, Robbyn K.},
abstractNote = {Disclosed are microfluidic devices and systems for the desalination of water. The devices and systems can include an electrode configured to generate an electric field gradient in proximity to an intersection formed by the divergence of two microfluidic channels from an inlet channel. Under an applied bias and in the presence of a pressure driven flow of saltwater, the electric field gradient can preferentially direct ions in saltwater into one of the diverging microfluidic channels, while desalted water flows into second diverging channel. Also provided are methods of using the devices and systems described herein to decrease the salinity of water.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {4}
}

Patent:

Save / Share:

Works referenced in this record:

Continuous-Flow Biomolecule and Cell Concentrator by Ion Concentration Polarization
journal, October 2011

  • Kwak, Rhokyun; Kim, Sung Jae; Han, Jongyoon
  • Analytical Chemistry, Vol. 83, Issue 19, p. 7348-7355
  • DOI: 10.1021/ac2012619

Bipolar electrode depletion: membraneless filtration of charged species using an electrogenerated electric field gradient
journal, January 2011

  • Sheridan, Eoin; Knust, Kyle N.; Crooks, Richard M.
  • The Analyst, Vol. 136, Issue 20, p. 4134-4137
  • DOI: 10.1039/c1an15510e

Bipolar Electrode Focusing: Faradaic Ion Concentration Polarization
journal, March 2011

  • Anand, Robbyn K.; Sheridan, Eoin; Knust, Kyle N.
  • Analytical Chemistry, Vol. 83, Issue 6, p. 2351-2358
  • DOI: 10.1021/ac103302j

Nanofluidic concentration devices for biomolecules utilizing ion concentration polarization: theory, fabrication, and applications
journal, January 2010

  • Kim, Sung Jae; Song, Yong-Ak; Han, Jongyoon
  • Chemical Society Reviews, Vol. 39, Issue 3, p. 912-922
  • DOI: 10.1039/b822556g

Direct seawater desalination by ion concentration polarization
journal, March 2010

  • Kim, Sung Jae; Ko, Sung Hee; Kang, Kwan Hyoung
  • Nature Nanotechnology, Vol. 5, Issue 4, p. 297-301
  • DOI: 10.1038/nnano.2010.34

Dual-channel bipolar electrode focusing: simultaneous separation and enrichment of both anions and cations
journal, January 2012

  • Knust, Kyle N.; Sheridan, Eoin; Anand, Robbyn K.
  • Lab on a Chip, Vol. 12, Issue 20, p. 4107-4114
  • DOI: 10.1039/c2lc40660h

Electrokinetics in Microfluidic Channels Containing a Floating Electrode
journal, August 2008

  • Dhopeshwarkar, Rahul; Hlushkou, Dzmitry; Nguyen, Mark
  • Journal of the American Chemical Society, Vol. 130, Issue 32, p. 10480-10481
  • DOI: 10.1021/ja8036405

Bipolar Electrode Focusing: The Effect of Current and Electric Field on Concentration Enrichment
journal, December 2009

  • Perdue, Robbyn K.; Laws, Derek R.; Hlushkou, Dzmitry
  • Analytical Chemistry, Vol. 81, Issue 24, p. 10149-10155
  • DOI: 10.1021/ac901913r

Enrichment of Cations via Bipolar Electrode Focusing
journal, August 2012

  • Sheridan, Eoin; Hlushkou, Dzmitry; Knust, Kyle N.
  • Analytical Chemistry, Vol. 84, Issue 17, p. 7393-7399
  • DOI: 10.1021/ac301101b

Bipolar Electrode Focusing: Simultaneous Concentration Enrichment and Separation in a Microfluidic Channel Containing a Bipolar Electrode
journal, November 2009

  • Laws, Derek R.; Hlushkou, Dzmitry; Perdue, Robbyn K.
  • Analytical Chemistry, Vol. 81, Issue 21, p. 8923-8929
  • DOI: 10.1021/ac901545y