Case Studies

TB 80: Oxygen Removal from Feedwater of a Central District Heating System
In central district heating systems heated water from power plants is distributed to residential and industrial areas by insulated piping networks. Large storage tanks are typically used to safely store heat for use during periods of peak load demand. To prevent internal corrosion and to increase the lifetime of piping and storage tanks, inlet water should be deoxygenated with Liqui-Cel® Membrane Contactors.

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 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 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.

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.

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.

Lucent Technologies Low Level Oxygen Removal
This article summarizes a case study where Liqui-Cel® Membrane deaerators are used at Lucent Technologies to remove oxygen from water to 10 ppb.

TB 59: Optimized Deaeration System for Paulaner Brewery
This case study shows how this brewery utilized Liqui-Cel Membrane Contactors to build a modular deaeration system that reduced energy consumption.

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 50: Taiwan O2 CO2 Removal Case Study
Power plant uses Liqui-Cel® degassing contactors for CO2 Removal from water.

TB 48: Nuclear Power Plant Uses Liqui-Cel® Contactors for Dissolved Oxygen Removal to Prevent Corrosion
Case Study demonstrating the use of Liqui-Cel® Membrane Contactors for O2 and CO2 removal from water without chemicals.

TB 47: The Kori Nuclear Power Plant Uses Liqui-Cel Membrane Contactors for Liquid Degassing
Kori Nuclear Power Plant uses Liqui-Cel® degasifiers to remove O2 to prevent corrosion in their boiler feedwater system.

TB 45: Boiler Feed Water Degassing Lowers Operations Costs and Chemical Usage
Boiler Feed Degassing system in China Removes O2 from water for corrosion control and lowers operating costs.

TB 43: Efficient Ammonia Removal using Modular Liqui-Cel Contactors
This is a case study where Liqui-Cel® degasifiers remove 95% of ammonia from a European industrial wastewater system.

TB 41: Activated Water for Improved Megasonic Cleaning
Improved megasonic wafer cleaning with activated water using hydrogen and Liqui-Cel® Contactors.

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.

TB 33: Oxygen Removal from Water to 3 ppb at IMEC
Semiconductor research facility utilizes Liqui-Cel® degassing contactors for 3 ppb O2 removal from water.

TB 15: Deoxygenated Make-Up Water in Power Plant Using Liqui-Cel® Contactors
This power plant case study discusses using Liqui-Cel® degassers for oxygen removal from water and corrosion control.

TB 10: Baltimore Gas and Electric-Uses Liqui-Cel® Deoxygenators in Nuclear Power Plant
Power plant uses Liqui-Cel® Degassers for oxygen removal from water.

VLSI chooses Liqui-Cel Contactors over Conventional Vacuum Tower for Deaeration
This paper describes the process and technology that VLSI evaluated for their San Antonio Texas Plant. Liqui-Cel® Contactors were chosen over vacuum deaeration for oxygen removal of < 1ppb.

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.

Liquid-Liquid Extraction of Aroma Compounds with Hollow Fiber Contactor
This paper details how Liqui-Cel® Membrane Contactors have been successfully used for the extraction of aroma compounds for the food industry. The paper was completed by Unilever Research in the Netherlands and was published in the AIChE Journal, August 2001, Vol. 47, No 8.