SINGLE-LAYER MEMBRANE COMPRISING POLYTETRAFLUOROETHYLENE INTERSPERSED THEREIN

摘要

A single-layer diffuser membrane constructed of first and second compounds. The first compound has structural and flexibility properties suitable for applying air to wastewater through a plurality of perforations formed through the membrane and the second compound is suitable for inhibiting fouling of the membrane. The first compound may comprise polyurethane and the second compound may comprise polytetrafluoroethylene. The concentration of the second compound within the membrane may be between about 3.0 vol. % and 20.0 vol. %. The second compound may be dispersed adjacent the perforations to inhibit fouling of the perforations. Another aspect of the present invention relates to the method for constructing the membrane. Upon the mixing of the first and second compounds, the mixed composition may be formed into a membrane through, for example, an extrusion process or a molding process. Perforations may be created either during or after the forming of the membrane.

主权项

1. A flexible diffuser membrane for applying air to wastewater for aeration of the wastewater, said diffuser membrane comprising:
a first compound having structural and flexibility properties suitable for applying said air to said wastewater through a plurality of perforations formed through said membrane; and a second compound dispersed throughout said first compound, said second compound being suitable for inhibiting fouling of said membrane.