Title: Nanoengineered field induced charge separation membranes manufacture thereof

Abstract

A device according to one embodiment includes a porous membrane having a surface charge and pore configuration characterized by a double layer overlap effect being present in pores of the membrane, where the porous membrane includes functional groups that preferentially interact with either cations or anions. A device according to another embodiment includes a porous membrane having a surface charge in pores thereof sufficient to impart anion or cation selectivity in the pores. Additional devices, systems and methods are also presented.

Inventors:

O'Brien, Kevin C.; Haslam, Jeffery J.; Bourcier, William L.; Floyd, III, William Clary

Issue Date:

2016-08-02

Research Org.:

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1281140

Patent Number(s):

9403128

Application Number:

14/185,053

Assignee:

Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B01D2323/345 - UV-treatment
B01D2325/02 - Details relating to pores or pososity of the membranes
B01D2325/14 - Membrane materials having negatively charged functional groups
B01D2325/16 - Membrane materials having positively charged functional groups
B01D61/46 - Apparatus therefor
B01D61/485 - {Specific features relating to the ion-exchange material}
B01D67/0006 - {by chemical reactions
B01D67/0034 - {by micromachining techniques, e.g. using masking and etching steps, photolithography}
B01D67/0037 - {by deposition from the gaseous phase, e.g. CVD, PVD}
B01D67/0079 - {Formation of membranes comprising organic and inorganic components}
B01D69/02 - characterised by their properties
B01D69/125 - {In-situ manufacturing by polymerisation, polycondensation, cross-linking, and/or reaction}
B01D71/44 - Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26 - B01D71/42
B01D71/64 - Polyimides

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

C02F1/4695 - {electrodeionisation}

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DOE Contract Number:  

AC52-07NA27344

Resource Type:

Patent

Resource Relation:

Patent File Date: 2014 Feb 20

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 42 ENGINEERING