Ligasep™ Membrane Degasification

Reliable and sustainable water treatment systems.

 
 
 

Helping the industry produce fresh water while keeping operations reliable and sustainable

The Ligasep™ product line utilizes a PMP (polymethylpentene) hollow fiber membrane which is used to remove dissolved gases, such as oxygen and carbon dioxide, from water to prevent oxidation and reduce the ionic load on downstream processing equipment.  Control of these gasses is an integral part of producing high quality water used in the power generation, industrial manufacturing and semiconductor industries.  These modules can be installed in series within the same water treatment system, ensuring efficient degasification and achieve ppb levels (parts-per-billion) of dissolved gasses for a wide range of flow rates in water treatment applications. 

 

The Ligasep™ product advantages:

  • Membrane barrier prevents contaminants on the gas side to transfer to water side.
  • Surrounding air quality does not affect performance.
  • Membrane technology maintains performance under variable flow conditions.
  • High packing density translates into smaller footprint and modular design.
 
 
 
 
 
 
 
 
 
 
 
 
Portfolio Features

Learn more about Ligasep™ Degasification Modules

In constant pursuit for bringing solutions for the water industry aligned to the Societal Challenges and Sustainable Development, DuPont Water Solutions is adding a new technology to its broad range of World Class brands like FILMTEC™ Reverse Osmosis elements, Amber series of ion exchange resins and Integraflux™, Memcor™ and inge™ Ultrafiltration portfolios, among others. Membrane-based degasifiers have the power to combine with other technologies in your water treatment system to reliably and sustainably produce high quality water for the required operations and production of energy and goods. Membrane Degasifiers enable a significant reduction in chemical consumption and energy footprint of water treatment systems.
How they work?
Features
Applications
Industries

Membrane degasification technology brings the gas and liquid phases in contact with each other across a gas permeable membrane. The membrane does not allow water to permeate through the membrane while it will readily allow gasses through. This creates a large contact area that maximizes the gas removal efficiency. The gas concentrations and operating pressure on one side of the membrane are adjusted to ensure an efficient gas removal from the water.

  • Utilizes a hollow fiber membrane with a skin layer that reduces the passage of water vapor through the membrane. Low water vapor passage across the membrane allows blowers and other vacuum pump technologies to be used on the gas side of the membrane.
  • The membrane offers a barrier that prevents mixing between the gas and the liquid, hence avoiding any cross-contamination between both fluids.
  • Provides a stable and efficient contact area, allowing the modules to achieve low dissolved gas levels at the outlet.
  • Immediate transfer of gas allows for a rapid start-up.
  • Break tanks are not required, which eliminates the need for a booster pump, reducing energy consumption.
  • Inline installation ensures continuous operation and improving process reliability.
  • CO2 removal in DI water systems (Industrial Utility Water)
    • Between cationic-anionic Ion Exchange beds
    • Upstream Ion Exchange Mixed Bed or EDI
    • pH neutralization without chemicals
  • O2 removal
    • Boiler feedwater to prevent corrosion
    • Ultra Pure Water for microelectronics
  • Heavy industries (petrochemical, refineries, fertilizers)
  • Light industries
  • Power generation
  • Microelectronics and semiconductor industry
  • How they work? +

    Membrane degasification technology brings the gas and liquid phases in contact with each other across a gas permeable membrane. The membrane does not allow water to permeate through the membrane while it will readily allow gasses through. This creates a large contact area that maximizes the gas removal efficiency. The gas concentrations and operating pressure on one side of the membrane are adjusted to ensure an efficient gas removal from the water.

  • Features +

    • Utilizes a hollow fiber membrane with a skin layer that reduces the passage of water vapor through the membrane. Low water vapor passage across the membrane allows blowers and other vacuum pump technologies to be used on the gas side of the membrane.
    • The membrane offers a barrier that prevents mixing between the gas and the liquid, hence avoiding any cross-contamination between both fluids.
    • Provides a stable and efficient contact area, allowing the modules to achieve low dissolved gas levels at the outlet.
    • Immediate transfer of gas allows for a rapid start-up.
    • Break tanks are not required, which eliminates the need for a booster pump, reducing energy consumption.
    • Inline installation ensures continuous operation and improving process reliability.

  • Applications +

    • CO2 removal in DI water systems (Industrial Utility Water)
      • Between cationic-anionic Ion Exchange beds
      • Upstream Ion Exchange Mixed Bed or EDI
      • pH neutralization without chemicals
    • O2 removal
      • Boiler feedwater to prevent corrosion
      • Ultra Pure Water for microelectronics

  • Industries +

    • Heavy industries (petrochemical, refineries, fertilizers)
    • Light industries
    • Power generation
    • Microelectronics and semiconductor industry

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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