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Innovative Method to Stabilize Liquid Membranes for Removal of Radionuclides…

Award Information

Department of Energy
Award ID:
Program Year/Program:
1996 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Membrane Technology and Research, Inc.
39630 Eureka Drive Newark, CA 94560
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 1996
Title: Innovative Method to Stabilize Liquid Membranes for Removal of Radionuclides from Groundwater
Agency: DOE
Contract: DE-FG03-96ER82227
Award Amount: $75,000.00


41080 Membrane Technology and Research, Inc. Uranium and other radionuclides have contaminated the groundwater at numerous DOE sites around the United States, and remediation is required. One technology with significant potential uses liquid membranes, which can selectively extract uranium and enrich it 10,000-fold or more by a coupled transport mechanism. In principle, liquid membranes provide an ideal method for recovery of metals from aqueous wastes because three processes - selective extraction, stripping, and regeneration - are combined in a single step. Unfortunately, current liquid membranes are not stable due to loss of carrier. In this project, the resolution of this instability problem by a novel membrane improvement will be evaluated. In Phase I, the feasibility of the approach will be determined in experiments with flatsheet membrane; long-term stability tests will be conducted. In Phase II, a pilot-scale demonstration system will be built and tested, first in the laboratory and later at a suitable DOE field site. Commercial Applications and Other Benefits as described by the awardee: Stable liquid membranes will allow effective and economical remediation of groundwaters containing radionuclides. The improved membranes can also be applied to the separation of other metal ions from aqueous streams in numerous industrial operations.

Principal Investigator:

Dr. K. A. Lokhandwala
Senior Research Scientist

Business Contact:

Ms. E. G. Weiss
Buisness Manager
Small Business Information at Submission:

Membrane Technology
1360 Willow Road Suite 103 Menlo Park, CA 94025

Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No