High Flux, Fouling Resistant Membranes for RO Pretreatment
Progress rept. 1 May 2010-31 Jul 2010
POROGEN CORP WOBURN MA
Pagination or Media Count:
High Flux, Fouling Resistant Membranes for RO Pretreatment, is contract number N00014-10-C-0224. The purpose of the contract is to develop pretreatment membranes that improve the desalination process onboard ships. In the case of pretreatment, this means extending the life of the RO membranes and improving the reliability uptime of the desalination process. The scope of the contract as proposed by PoroGen and Clean Membranes is to develop a fouling resistant, hollow-fiber, ultrafiltration membrane. Activities in the second 3 months of the project included 1. completing the set up of production and lab areas for the project, 2. preparing and testing flat sheet membrane with actual raw materials to be used for production to replicate flux and fouling resistance performance achieved with lab scale materials, 3. spinning initial PAN based hollow fiber to establish baseline spinning condition, varying parameters such as spin dope composition, temperature, and spinneret air gap, and 4. configuring and running preliminary test equipment for the hollow fibers. Summary of results 1. PAN hollow fibers produced with various PAN raw materials demonstrated improved mechanical characteristics suitable for hollow fiber membranes. 2. Bench tests for flux and fouling resistance verify that the membranes produced now are comparable in performance to work done initially at MIT.
- Industrial Chemistry and Chemical Processing
- Marine Engineering