We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is Vacuum Degassing?

By T. L. Childree
Updated May 17, 2024
Our promise to you
About Mechanics is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At About Mechanics, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Vacuum degassing is the process of removing dissolved gas from a liquid solution by lowering the pressure inside a vessel containing the solution. The reduced pressure inside the vessel causes the gas to become less soluble and separate from the liquefied material. After the vacuum degassing process is complete, the gas is removed from the vessel, and the pressure is returned to normal. This process is typically performed in a specially designed chamber known as a vacuum degasser. Vacuum degassing is often utilized in water treatment, laboratory testing, and soil purification procedures.

Simple vacuum degassing procedures are performed on many kinds of liquefied substances including molten steel. Air and other gasses are typically removed from a liquid material to enhance its purity or solid-state strength. During the pressure-lowering process, air and gasses in the containment vessel are typically drawn out by means of a siphon and dispersed into the atmosphere. This process is also utilized for analyzing a material under controlled conditions. These conditions may include air pressure, temperature, humidity, and altitude as well as electromagnetic and microwave radiation.

A form of vacuum degassing is utilized in water treatment facilities to greatly reduce the overall gas pressure in a containment vessel. The pressure inside the vessel is usually lowered by means of a pump or blower. The containment vessel for this process is typically constructed of aluminum, fiberglass, or steel. In some cases, reinforced concrete equipped with metal fittings is used. This degassing method is sometimes employed to remove sulfur gasses from water.

This degassing method is frequently used to quickly flush gasses from laboratory test samples. Vacuum degassing also provides a means of priming or purging test samples at low volumes. Vacuum degassers used in laboratory testing facilities operate by sending the solution through a membranous tube that will only allow gasses to pass out of it. A constant vacuum must be maintained during this process and the rate of flow is adjusted for different types of liquid material.

Another type of vacuum degassing is found in the agricultural industry. In this process, a mixture of water and soil is pulled into a containment vessel by means of a vacuum pump. Centrifugal force is brought to bear on the containment vessel while the pump maintains a constant vacuum inside. This force scatters the water and soil mixture into narrow layers for maximum vacuum exposure. During this process, dissolved gasses are separated from the mixture and discharged into the air by a blower. After the material is purified, it is returned to the environment for reuse.

About Mechanics is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.

About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.