DELOACH BLOG

The Basics of Water Degasification

Posted by Anthony DeLoach, President on Jul 24, 2018 9:13:00 AM

The water treatment industry has developed and evolved over the years to continue to find new ways to produce degassed water,

with many advances in both the technological methods of treatment as well as the refinement of the existing methods. The evolution of water treatment has been driven by the need for increased demand and over safety standards.

All human cultures on our planet share a 

single commonality and

that is the dependency on water to survive.

Many existing technologies such as “degasification” have evolved with higher efficiency to meet the demand changes and provide safety to consumers and to systems. Degasification refers to the removal of dissolved gases from liquids and the science to degasify water is based upon the “Henry’s Law” or to be exact the “proportionality factor is called the Henry’s law constant” and was developed by William Henry in the early 19th century.

Henry’s Law states that the amount of dissolved gas is proportional to its partial pressure in the gas. The most effective method to perform degasification is with the packed vertical tower called a degasifier or decarbonator. When water enters at the top of the tower it gravity feeds downward across a media bed. The media bed acts to reshape the water over and over again exposing any dissolved gas molecules to the surface of the water droplet.  At the same time that the water is traveling down the interior of the tower an air flow is introduced in a cross current method either by force or by induction that passes over the water droplets and “strips” the gas molecules out of the water. The gases that are stripped then leave the tower through the exhaust at the top of the tower. This is the “basics of water degasification”.

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Topics: water quality, degasification, pH levels of water, water treatment, advanced treatment solutions, water plant, safety, hydrogen sulfide (H2S), Chemical Odor, media packing, pH levels, Decarbonation, dissolved gases, wastewater, Global, carbon dioxide, decarbonator, degasifier, gases, RO membrane, H2S Degasifier, degassed water

Degasification Towers With FDA & NSF/ANSI 61 Certification.

Posted by Anthony DeLoach, President on Apr 14, 2018 10:04:59 AM

When selecting a water treatment process it is important to consider all of the variables for the application before deciding on materials to be considered and the method of construction. In the water industry professionals are governed by certain requirements and standards and you will commonly here the terms “NSF certification”. FDA Chapter 21 and NSF/ANSI 61 standard also applies.

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Topics: water treatment issues, contact molded process, safety, FDA, NSF/ANSI 61

Safety Precautions Are Required When Entering A Water Treatment Tower Or Tank

Posted by Anthony DeLoach, President on Sep 20, 2017 2:36:58 PM

During normal installation, maintenance, or even emergency repairs, it is often required to enter into a water treatment tower (degasifier, air stripper, decarbonator, or clear well/ storage tank). When this occurs, full safety protocols should be followed at all time, in accordance with OSHA regulations.  A tower or tank B classification is a "Confined Space" location. For more information visit the OSHA combined space regulations page.

In addition, there are other safety risks that an operator or technician can be exposed to while inside of these types of closed locations. The risk can come from fumes of hydrogen sulfide (H2S), chlorine from an injection line, or a lack of oxygen O2. A proper confined space permit should be prepared and only technicians with proper training and certifications should enter into these types of confined spaces.

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Topics: water treatment, water plant, safety

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