North American Desalination and Membrane Trends

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1 North American Desalination and Membrane Trends Doug Eisberg American Membrane Technology Association AMTA America s Authority in Membrane Technology

2 Desalination and Membrane Use in North America Early North America Membrane Technology In 1959 UCLA became the first to demonstrate a practical process known as reverse osmosis In 1964 General Atomic developed the first spiral wound membrane element In 1971 Reverse Osmosis General Atomic (ROGA ) installed the 1 st major potable water reverse osmosis system in Ocean Reef, Florida AMTA 2

3 Desalination and Membrane Use in North America Use of the technology continues to grow Over 1400 Major Desalination- Nanofiltration Systems Over 1000 Major Microfiltration and Ultrafiltration Systems Over 400 Major Membrane Bioreactor systems AMTA 3

4 The Desalination and Water Reuse Landscape North America is experiencing record drought The need for additional water is critical The areas most affected are the Midwest and West The list of municipal projects is now extensive These projects will be a mix of desalination and reuse technologies Projects are slated for both municipal and industrial segments AMTA 4

5 Desalination Trends in North America Current Situation Most desalination is brackish water Used as a standard for most industries Acceptance of large diameter is slow Carlsbad Seawater plant under construction Future Trends Larger seawater systems will become reality Low energy, low fouling technology will become the norm Zero liquid discharge technology will help expand use for some applications Recovery rates will continue to increase into more highly stressed waters Better Ion Control Better antiscalant development AMTA 5

6 Membrane Softening Trends in North America Current Situation Nanofiltration has been a popular process Used mainly for color and hardness removal Acceptance for new facilities is good Many larger plants have been built Limited number of products for Nanofiltration Future Trends More Nanofiltration products will be developed by manufacturers Existing facilities will be expanded Their use in non-water applications will grow Lime softening plants will be replaced with membrane facilities AMTA 6

7 Micro/Ultrafiltration Trends in North America Current Situation There are several manufacturers and more are entering the market The products are not interchangeable The market is growing Large municipal systems are common Future Trends Greater growth than desalination and nanofiltration More suppliers entering the market with components Use on difficult waters will expand Use as pretreatment to RO will expand Interchangeability of MF/UF modules from different manufacturers will change the market Ceramic membranes will gain acceptance in industrial applications AMTA 7

8 Membrane Bioreactor Trends in North America Current Situation MBR is growing rapidly with the advantages of smaller footprint than conventional treatment and a potential reuse of the water Mixture of biological waste treatment and membrane treatment Pretreatment operation is very important Future Trends The use of MBR will rapidly increase Smaller footprint than conventional Need to reuse water from waste streams Acceptance of reuse water for industrial as well as other uses such as barrier protection and aquifer replenishment AMTA 8

9 Water Reuse Trends in North America Current Situation Indirect use is getting attention and being implemented in some areas for: Barrier Control Aquifer Replenishment Irrigation Discharge to Reservoirs The first direct potable plants have been built Future Trends Reuse will become a major source of water Tertiary effluent treatment Reinjection Industrial use such as cooling towers, rinsing,etc. Indirect potable reuse in the near future AMTA 9

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