Carbon Dioxide Removal from Water

CO2 Removal From Water

Technical Briefs

TB 76: Liqui-Cel® Membrane Contactor Degassing System Installed to Increase Well Pumping Efficiency in Rockland County New York

This technical brief describes how Liqui-Cel Membrane Contactors were evalulated and used to improve the flow rates of wells operated by United Water of New York (UWNY) by removing dissolved gasses. The reduced operating costs and lower capital requirements gave Liqui-Cel Contactors the edge over competing technologies.

TB 75: Power Plant Installs Advanced Membrane System to Reduce Capital Costs and Decrease Energy Use

This technical brief describes how Liqui-Cel Membrane Contactors were installed as part of an Integrated Membrane System (IMS) in a power plant. This advanced membrane-based industrial water treatment system replaced a conventional water treatment system resulting in reduced capital costs, lowered energy use and the improved water reclaim rate.

TB 73: Liqui-Cel® Contactors Used to Meet Pure Steam Requirements in Pharmaceutical Industry

Liqui-Cel Membrane Contactors can improve the efficiency and reduce operating costs associated with using pure steam to sterilize pharmaceutical products.

TB 72: Chinese Chemical Plant Optimizes Water Treatment with Liqui-Cel® Contactors

This case study describes how a chemical company replaced their double pass RO system with RO+Liqui-Cel to Optimize their process.

TB 68: Chemical Cost Comparison LC vs. Traditional Deaeration System

This technical brief details the process a company goes through when weighing the operating costs and performance of different degassing systems.

TB 63: Liqui-Cel® Membrane Contactors are widely used in the soft drink and brewing industries to Control dissolved gasses

This paper provides an overview of the principles of Membrane Contactor Operation for the Beverage market and why they should be used to save operating costs and improve processes.

TB 62: Liqui-Cel® Membrane Degassing Modules Improve Ice Production at the Ice Palace in Moscow

This case study describes an innovative approach that was used by the Ice Palace in Moscow to produce clearer ice in their arena.

TB 57: Generating Station Saves 50% in Capital by Using Liqui-Cel® Contactors to Extend Mixed Bed Life

14x28 Liqui-Cel® decarbonators are the chemical free choice used to decarbonate water feeding the mixed beds.

TB 56: Power Plant in Thailand Uses Liqui-Cel® Membrane Contactors to Remove CO2 From Water

Liqui-Cel® degasifiers are used to remove CO2 from water that feeds a high pressure boiler.

TB 39: Japanese Brewery Uses Liqui-Cel Contactors in 3 Breweries

Liqui-Cel® degasifiers reduce corrosion by removing O2 and CO2 from water at Kirin Brewery.

TB 38: Chemical-Free Membrane Degassing in Pharmaceutical Plants

Membrane degasifiers are used instead of chemicals for oxygen and carbon dioxide removal from water.

More Tech Briefs

More Info

Need to select the right product for your application? Read our Technical Specs for the entire Liqui-Cel® Membrane Contactor product line.

For years, many industries have used Liqui-Cel® Contactors for carbon dioxide removal from water. Systems utilizing RO and EDI or CDI technologies need to reduce the amount of carbon dioxide in the water. High inlet conductivity levels into an EDI or CDI device will reduce the resistivity of the outlet water.

A common cause of the high conductivity is dissolved carbon dioxide. Membrane contactors provide a clean, maintenance free method to remove carbon dioxide from water without any chemical pH adjustment. EDI and CDI systems produce higher quality water if the CO2 has been removed upstream. Silica and Boron outlets in the EDI/CDI units are also improved when CO2 is not present.

Additionally, Liqui-Cel® Contactors are used for carbon dioxide removal from water in front of ion exchange beds. CO2 in the water places an excess load on ion exchange beds requiring more frequent chemical regeneration to take place. There is a cost savings and environmental benefit when using Liqui-Cel® Contactors instead of chemicals to remove carbon dioxide from water.

The contactors are small and compact and offer a preferred alternative to chemical injection and forced draft degasifiers. Liqui-Cel® Membrane Contactors have displaced forced draft deaerators in many industries for more than 10 years.


Technical Papers

Using Gas Transfer Membrane to Deaerate Cold Boiler Feed Water Reduces Steam Duty and Operating Costs
This case study gives an account of how Gas Transfer Membranes (GTM), enabled a refinery to deaerate cold boiler feed water to replace the steam duty, associated with traditional steam deaeration, with waste heat. Significant energy cost savings were realized resulting in a very quick payback for the refinery. The article is courtesy of PTQ and was originally printed in the Q1 2012 issue.

Membrane Contactors: An Introduction To The Technology
This paper provides a good overview to Membrane Contactor technology. Principles of Membrane Contactor Operation and mass transfer principles are discussed.

Using Membrane Contactors For CO2 Removal To Extend Resin Bed Life
This case study discusses operating savings and efficiency improvements at City Public Service in San Antonio, Texas.  They chose Liqui-Cel Contactors over a forced draft deaerator for CO2 removal from water at their plant to extand resin bed life, lower operating costs, and do away with chemical addition.

Mansfield Brewery Uses Liqui-Cel® Membrane Contactors to Nitrogenate Beer
Nitrogen is added to beer with Liqui-Cel® Contactors to control CO2 content and produce a smooth keg beer that mimics cask–conditioned beer while maintaining the ‘head’ characteristics of a keg beer.

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