Over the last 15 years, low pressure membrane systems have continued to evolve and are now the preferred treatment technology for many water applications. New membrane materials, system design, and operational improvements have enhanced customer confidence and have solidified the positioning of membranes in this market. Industry discussions on the next breakthrough have been centered on an open platform rack design that provides options during the ownership period. The concept is that customers can select alternative membranes to modify performance or when replacement is required. Since the size, operating conditions, and availability of membrane modules vary greatly, it is not possible to design a single open platform rack that economically accommodates all products. High area modules require large centerline spacing, and extra rack positions must also be available if a low area module is selected, resulting in large footprints. Ancillary equipment such as pumps and compressors must be oversized to meet the worst case operating conditions even if the capacity is not needed. These design accommodations generally result in an ineffecient and costly system design and create the potential for premature component failure. A cost effective open rack concept is currently available on a proven commercial membrane system. This paper will focus on the conversion of this system into a platform that provides optimized performance and module replacement options without requiring an oversized footprint or extra ancillary equipment.
This presentation is available to AMTA Members only.
- Joseph Robert Swiezbin
- Pall Corporation
- AMTA/AWWA Membrane Technology Conference, Long Beach, CA
- AMTA/AWWA Membrane Technology Conference
- Membrane, Ultrafiltration, Emerging, Microfiltration