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reverse osmosis and deionization systems for aquaria

Reverse Osmosis and Desalination. . Theory of OsmosisTypical Industry Applications of Reverse Osmosis (RO), DesalinationPractical Considerations for RO in AquariaDesigning an RO System for a Salt Water Exhibit. Theory of Osmosis. . . . . . Fresh Water. Sea Water. H2O. . . Initial Condition. . . .

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reverse osmosis and deionization systems for aquaria

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    1. Reverse Osmosis and Deionization Systems for Aquaria Thoram Charanda Sr. Chemist Walt Disney World Co. Life Support Lake Buena Vista, FL

    2. Reverse Osmosis and Desalination

    3. Theory of Osmosis

    5. Key Terms in RO Systems

    6. RO Membrane Filter Detail

    7. Industrial Applications of RO Systems Purification of potable or “fresh” water sources: Purified, very low Total Dissolved Solids (TDS) water is produced for various uses. In the aquarium industry it can be used for: - Make up water in fresh and salt water aquariums - As a pure water base for artificial salt water systems - As a non-scaling/spotting wash or rinse water for aquarium exhibit windows. Desalination of Sea Water: - Production of potable drinking - Source water for combustible turbine power plants - Irrigation and non-potable utility water uses - It can also be used as a salt recovery system for closed-filtration sea water aquaria

    8. RO System for Fresh Water

    9. Desalination RO Systems

    10. Design Considerations for a Salt Recovery RO System Consider your feed water source: Natural or Artificial Sea Water. Identify the typical range of the water chemistry parameters. pH Temperature Salinity Silt Density Index (SDI) Silica Level of Particulates Presence of Organics or Residual Oxidizers What is the desired rate of permeate (fresh water) removal from your system? This will dictate the required feed flow rate for the RO system.

    11. Design Considerations for a Salt Recovery RO System Consider any future requirements for system upgrade in fresh water removal capacity, e.g. system can accept an additional membrane, high pressure pump is slightly oversized. Identify the best location in the aquarium filtration pathway to connect the feed source. Consider connecting the return filtration line post ozonation. Identify pre-filtration requirements: GAC filter to removal residual oxidants, e.g. bromine, ozone Additional particulate filters for highly loaded systems

    12. ROSA 5.4 Reverse Osmosis Design Software

    14. 5,000 gpd RO System at Shark Reef, Typhoon Lagoon

    16. Deionization Water Filtration Systems Principles of Deionization (DI) Applications for DI Water Water Chemistry Parameters and Considerations for a DI System

    17. Ion Exchange Beads

    18. Types of Ionic Exchange Resins

    19. Strong Acid Cationic Resin

    20. Applications for DI Water Analytical grade water for laboratory use Essentially salt and micro nutrient free water that can be used to make artificial sea water Replenish system water loss due to evaporation Makeup of specialized water quality environments, ie. natural waters with very low TDS and specific concentrations of cations

    21. Design Engineering of DI Systems

    23. Summary Reverse osmosis systems are a good design choice where: - Moderate (2,000 liters) to large (+18 m3) volumes of water are required per event and there is sufficient space for the purified water reservoir - Desalinated water source for utilities and as a purified water source for DI analytical laboratory grade water - Desalination system for salt recovery Deionization systems are a good design choice where: - A relatively fast flow rate (> 35 Lpm) of pure water is required - Only cost effective for relatively small exhibits, < 2,000 liters - Analytical laboratory grade water

    24. Acknowledgements

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