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

Title: Process for removing sulfate anions from waste water

Abstract

A liquid emulsion membrane process for removing sulfate anions from waste water is disclosed. The liquid emulsion membrane process includes the steps of: (a) providing a liquid emulsion formed from an aqueous strip solution and an organic phase that contains an extractant capable of removing sulfate anions from waste water; (b) dispersing the liquid emulsion in globule form into a quantity of waste water containing sulfate anions to allow the organic phase in each globule of the emulsion to extract and absorb sulfate anions from the waste water and (c) separating the emulsion including its organic phase and absorbed sulfate anions from the waste water to provide waste water containing substantially no sulfate anions.

Inventors:
 [1];  [2];  [3];  [2]
  1. Lebanon, OR
  2. Albany, OR
  3. Corvallis, OR
Issue Date:
Research Org.:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
OSTI Identifier:
870780
Patent Number(s):
5593593
Assignee:
United States of America (Washington, DC)
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; removing; sulfate; anions; waste; water; liquid; emulsion; membrane; disclosed; steps; providing; formed; aqueous; strip; solution; organic; phase; contains; extractant; capable; dispersing; globule; form; quantity; containing; allow; extract; absorb; separating; including; absorbed; provide; substantially; sulfate anions; waste water; organic phase; water containing; removing sulfate; membrane process; aqueous strip; liquid emulsion; strip solution; containing substantially; emulsion formed; emulsion membrane; containing substantial; /210/

Citation Formats

Nilsen, David N, Galvan, Gloria J, Hundley, Gary L, and Wright, John B. Process for removing sulfate anions from waste water. United States: N. p., 1997. Web.
Nilsen, David N, Galvan, Gloria J, Hundley, Gary L, & Wright, John B. Process for removing sulfate anions from waste water. United States.
Nilsen, David N, Galvan, Gloria J, Hundley, Gary L, and Wright, John B. Wed . "Process for removing sulfate anions from waste water". United States. https://www.osti.gov/servlets/purl/870780.
@article{osti_870780,
title = {Process for removing sulfate anions from waste water},
author = {Nilsen, David N and Galvan, Gloria J and Hundley, Gary L and Wright, John B},
abstractNote = {A liquid emulsion membrane process for removing sulfate anions from waste water is disclosed. The liquid emulsion membrane process includes the steps of: (a) providing a liquid emulsion formed from an aqueous strip solution and an organic phase that contains an extractant capable of removing sulfate anions from waste water; (b) dispersing the liquid emulsion in globule form into a quantity of waste water containing sulfate anions to allow the organic phase in each globule of the emulsion to extract and absorb sulfate anions from the waste water and (c) separating the emulsion including its organic phase and absorbed sulfate anions from the waste water to provide waste water containing substantially no sulfate anions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}

Patent:

Save / Share: