Chemically Modified Nanofiltration Hollow Fiber Membranes for Heavy Metal Removal
National University of Singapore, Singapore, Singapore
This technology relates to a hollow fiber nanofiltration membrane (polymeric) that can remove both positively and negatively charged heavy metal ions from water. Rejection rates for cations can be 91-99% at 13 bar. For Cr2O72-, CdCl42- and HAsO42-, rejection is ~99.74%(pH 10), 99.88% and 99.82% at 15 bar.
Primary Application Area: Environmental, Water & Waste
Technology Development Status: Prototype
Technology Readiness Level: TRL 2
FIGURES OF MERIT
Value Proposition: No sludge produced, low energy requirement for the membrane process (as it is nanofiltration based, compared to RO which requires high pressures), less expensive than ion exchange resins.
Organization Type: Academic/Gov Lab
Showcase Booth #: 717
GOVT/EXTERNAL FUNDING SOURCES
Government Funding/Support to Date: Singapore government grant
Primary Sources of Funding: Federal Grant
Looking for: Both Funding and Development Partners