Removal of air from water using Henry Law

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SUMMARY

The discussion centers on the application of Henry's Law for extracting air from water, specifically through a method developed by Israeli inventor Bodner, which utilizes a centrifuge to create a low-pressure environment. The centrifuge, measuring 12 inches in diameter and 20 inches in height, is deemed too large for the user's design project. Alternative methods suggested include bubbling pure nitrogen through the water or adding sodium sulfite to facilitate deaeration, particularly for scuba systems aimed at converting seawater into breathable air, consisting of approximately 64% nitrogen, 34% oxygen, and 1.5% carbon dioxide.

PREREQUISITES
  • Understanding of Henry's Law and its applications in gas solubility
  • Familiarity with centrifuge operation and design
  • Knowledge of gas composition in air and its relevance to scuba systems
  • Basic principles of water treatment and deaeration techniques
NEXT STEPS
  • Research alternative methods for air extraction from water, such as membrane separation technologies
  • Explore the design and functionality of smaller centrifuge models for air extraction
  • Investigate the use of nitrogen bubbling techniques in water treatment applications
  • Learn about the chemical properties and applications of sodium sulfite in water deaeration
USEFUL FOR

This discussion is beneficial for engineers, environmental scientists, and scuba diving equipment designers who are interested in innovative methods for air extraction from water and improving water treatment processes.

Geegraph
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Okay, I am doing a design project which needs to extract air out of water. Here is the situation.

Using Henry's law, an Israeli Inventor Bodner used a centrifuge which rotates rapidly thus creating under pressure inside a small sealed chamber containing sea water thus extracting the air out of the water.

The following link shows an article of this process.
http://www.isracast.com/article.aspx?id=63

I was planning to use his method to extract the air out, however the size of the centrifuge which is about 12" diameter, 20" height is way too big and bulky for my design. Therefore I was wondering if anyone out there knows of a method to replace the centrifuge to a smaller equipment which can yet perform the same function.

As I am not a Physics person, I am very grateful to those who have helped. Do advice me on your take for this process.
 
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Are you trying to remove the air from the water? Or are you trying to recover the air from the water for some other use. If you just want to deaerate the water bubble pure nitrogen through it or add sodium sulfite to it.
 
Its actually meant for a scuba system. Hence I was planning to use that to convert sea water to air which includes about 64% N2, 34% O2 and 1.5% CO2. Following which, Carbon dioxide would be removed and the remaining air would be transmitted to the divers.
 

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