Hollow Fiber Freeze Thaw Filter
Navy SBIR FY2008.2

Sol No.: Navy SBIR FY2008.2
Topic No.: N08-110
Topic Title: Hollow Fiber Freeze Thaw Filter
Proposal No.: N082-110-0505
Firm: NanOasis, Inc.
415 Bundy Ave.
San Jose, California 95117
Contact: Jason Holt
Phone: (510) 282-8602
Abstract: This Small Business Innovation Research Phase I project aims to develop a scalable process for production of nanomaterials-based, high permeability, freeze/thaw resistant membranes for removal of biological contaminants from low salinity water sources. Due to the high membrane permeability, smaller pore sizes can be utilized, offering the ability to remove bacteria and viruses, and thus eliminating an additional decontamination step required with current individual water purification systems.
Benefits: This Small Business Innovation Research Phase I project aims to develop a low cost thin-film composite membrane production process capable of yielding membranes having superior robustness, permeability and rejection characteristics compared to state-of-the art nanofiltration and ultrafiltration membranes. A specific goal is to demonstrate a membrane that survives freeze/thaw cycles without a reduction in the efficacy of the filter in removing microbial contaminants. More generally, the process shall be capable of producing superior performance, low cost membranes across the range of reverse osmosis, nanofiltration and ultrafiltration applications - a $2B annual market.