In the field of water treatments and purification systems, membrane degasification (MGD) systems continue to be an effective solution for liquids that have dissolved gasses intermixed. This particular technology is used in industries where scaling, corrosion, or poor product quality can be caused by the presence of specific gasses such as carbon dioxide and oxygen. Our team at Agape Water Solutions can discuss the benefits of membrane degasification and how it works to remove these gasses from the liquids and get the best final results.
What is membrane degasification?
We describe membrane degasification as a specific process or system that removes gas from liquids using semi-permeable membranes. Gasses can be stripped from the water without requiring high energy consumption or chemical additives. The membrane helps facilitate the transfer of gasses throughout the liquid phase.
What are some of the components of the membrane degasification system?
· The membrane module. The membrane module is made of hollow fibers created from hydrophobic PTFE or polypropylene and ensures that liquids are retained while gasses are removed.
· A blower or vacuum pump. Flow is needed on the gas side of the membranes, to diffuse the gasses from the liquid. This is typically an air blower or vacuum pump, in some cases dry clean compressed air can be used.
· The gas sweep system. To improve gas removal efficiency, sometimes a Nitrogen gas sweep system is utilized, allowing certain gasses like nitrogen to pass through the membrane to remove and carry away the stripped gasses.
What are the steps involved in the membrane degassing system?
· Step one: Liquid feed introduction. The first step in the process starts with feeding the liquid into the membrane module. The liquid flows through one side of the fiber membranes while also maintaining contact with the surface.
· Step two: Pressure differential creation. The use of a blower or vacuum pump reduces the pressure in the environment on one of the fiber membrane sides. This helps to differentiate between the liquid and gas sides, as dissolved gasses will flow towards the lower pressure areas.
· Step three: Gas diffusion through the membranes. Only gaseous molecules can pass through the fiber membranes while maintaining their liquid molecules due to their hydrophobic nature. Gasses like carbon dioxide and oxygen are easily diffused during this process due to their smaller size.
· Step four: Gas removal and collection. In the final step, the diffused gasses are removed through exhaust ports to ensure degasified and purified outputs in the liquids treated with this methodology. This liquid is now ready to use for its intended purposes.
What are some of the benefits of using membrane degassing systems?
There are a few advantages that make this type of water treatment a popular solution for many commercial and industrial companies. These include:
· High efficiency
· Chemical-free operation and eliminate sodium hydroxide injection for reverse osmosis systems.
· Compact design
· Low maintenance costs
· Improve and lower costs of Electrodeionization or chemically regenerated deionization.
How do I learn more about the process involved in membrane degasifier?
At Agape Water Solutions, we are here to demystify the process of certain water treatments. Our company, based out of Harleysville, Pennsylvania, can take the time to educate you on the various water solutions available through our company. Call (215) 631-7035 or email us at info@agapewater.com to discuss the water solutions we provide for companies across the country!