Commanding Officer, NAVFACCO, Bldg 41 Code 80, NAVFACENGCOMDET-SLC, 4111 San Pedro Street, Port Hueneme, CA 93043-4410

A -- MICRO- AND ULTRA-FILTRATION SYSTEMS FOR REVERSE OSMOSIS SYSTEM SOL N47408-00-T-0101 DUE 111899 POC Mr. Bill Varnava, (805) 982-6640, facsimile (805) 982-1458, e-mail: varnavawn@nfesc.navy.mil Micro-filtration and Ultra-filtration Systems. The Naval Facilities Engineering Service Center (NFESC) in Port Hueneme, California is interested in identifying potential sources of supply for commercially available filtration equipment which could be used as a pretreatment device to a reverse osmosis (RO) system. The military currently uses a reverse osmosis water purification unite (ROWPU) to produce potable water in the field from a variety of natural water sources ranging from fresh- to seawater. It is important to properly filter the water prior to the RO membrane to avoid scaling and fouling. It is desired to identify potential pretreatment systems which could reduce the overall life cycle costs and improve filtration performance compared to the current ROWPU's media and cartridge filters. The areas of primary interest are micro-filtration (MF) and ultra-filtration (UF) technology although other separation processes may be considered. Candidate systems should use a membrane with a pore size of 0.2microns or less. The ability to clean and reuse the membrane element is required. Membrane life should be 3 years or greater. Our intent is to lease a variety of MF and UF pilot systems (rated at 5 to 30 GPM) and evaluate them on a seawater feed source. A 1,000 hour performance test will be conducted to gather operational, reliability, and maintenance data. The following information is requested by potential sources: 1. Membrane type: MF, UF, Other; materials of construction; flow pattern, 2. Pilot unit raw water feed rate (GPM), 3. Pilot unit permeate feed rate (GPM) and permeate flux rate (GPM/sq. ft./day (GFD)), 4. Pilot unit system weight and dimensions, piping and instrumentation diagram (PI&D), 5. Pilot unit electrical requirements and air requirements, 6. Pilot unit pre-filtration requirements, 7. Membrane cleaning requirements, 8. Cost and availability of leasing pilot unit and purchasing membrane module, 9. Any other system requirements not covered by above items. Interested sources should submit this information by closing, 18 November 1999, along with any literature and brochures, not to exceed ten (10) pages. This is a request for information only, with no guarantee of a contract or award. Participation in this effort is strictly voluntary and no costs or obligation is to be incurred by the government. This is not a request for proposals, but a sources sought notice only. If it is determined that awards may be made based on the information submitted, proposals will be solicited through a formal solicitation. The technical point of contact is Mr. Bill Varnava, telephone (805) 982-6640, or email at: varnavawn@nfesc.navy.mil. Posted 10/04/99 (W-SN388392). (0277)

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