DELOACH BLOG

The Basics of Water Decarbonation (with audio)

Posted by Anthony DeLoach, President on Feb 25, 2019 1:04:12 PM

 

The Basics Of Water Decarbonation (audio)

The water treatment industry continues to develop and evolve and over the past two decades there have been many new developments in technology and even more refinement in existing technologies such as "Degasification". The evolution and advancement of water treatment have been driven by the constantly increasing demand from an increase in population that demand cost-effective solutions and recognition to improve safety with the implementation of NSF 61 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 the systems. Degasification refers to the removal of dissolved gases from liquids and the science to degasify water is based upon a chemistry equation known as "Henry's Law". The "proportionality factor" is called 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 "cost" effective method to perform degasification is with the packed vertical tower called a "Degasifier” or “Decarbonator”.

The key words in this previous sentence for owners, operators, and engineers to focus on is "the most cost-effective" as there is no other process more cost-effective at removing dissolved gases at the lowest cost than the use of a Degasifier or decarbonator. The process of degasification is simple enough to understand. Water is pumped to the top of a vertically constructed tower where it first enters the tower through some type of distribution system at the same time there is a cross current air flowing up from the bottom by a blower located at the bottom of the tower and the air encounters the water and is exhausted at the top of the tower through an exhaust port. There are various types of distributions systems and we will explore these in later discussions. Once the water enters the top of the tower and passes through the distribution system it then travels by gravity downward. The next thing the water encounters is some type of media packing. There are various forms of media packing offered in the degasification industry and each type can offer higher performance or have the ability to deter fouling. The selection of the type, size, and volume is where the “experience, engineering and understanding of each application” comes in to play.

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Topics: water treatment issues, water quality, degasification, pH levels of water, water treatment, advanced treatment solutions, About DeLoach Industries, water plant, NSF/ANSI 61, hydrogen sulfide (H2S), media packing, pH levels, scaling, caustic, Decarbonation, Safe drinking water, dissolved gases, carbon dioxide, decarbonator, boiler system, degasifier, carbonic acid, H2S Degasifier

How important are NSF/ANSI 61 standards for Water Treatment?

Posted by Anthony DeLoach, President on Jul 26, 2017 2:15:53 PM

When designing and selecting the materials for the manufacturing of water treatment equipment it is important to understand what regulatory standards or constructions standard may be required to be compliant. This includes the designing and fabrication of systems such as reverse osmosis utilizing membrane technology, decarbonation of Carbon Dioxide, degasification of Hydrogen Sulfide, and water filtration for the removal of micron particles from potable and non potable water processes.

One requirement that engineers and manufactures often encounter is called NSF /ANSI 61. NSF is an international and non profit, non governmental organization that is focused and dedicated to public health and safety as it relates to potable water systems and their components. NSF/ANSI 61 developed and established minimum requirements for the control of potential adverse human health effects from products and their components that contact drinking water.

DeLoach Industries Inc. manufactures multiple types of water treatment equipment and adheres to strict compliance with NSF/ANSI 61 standards with all of their manufacturing procedures and practices. This strict adherence assures owners that water treatment equipment like decarbonation and degasification towers, reverse osmosis and ion exchange that the equipment and its material are all in full compliance with the NSF/ANSI 61 requirements.

When manufacturing water treatment products from fiberglass material DeLoach Industries utilizes NSF/ANSI 61 resins within the fabricating process. This applies when utilizing either contact molded, or filament wound processes. In both applications when fiberglass resin is utilized with the entire component is manufactured with certified NSF/ANSI 61 resins or there is a suitable veil liner placed on the equipment or component that is in direct contact with the water. This variation is acceptable and often utilized to help reduce the cost of fabrication and the equipment for the customer.

When treating water to remove Hydrogen Sulfide or Carbon Dioxide the water comes into direct contact with the interior walls of either a decarbonation tower or a degasification tower. Both systems require the water to enter the tower and be directly exposed to either the fiberglass. Stainless steel, or carbon steel material. If the material of construction is not fiberglass then typically another type of NSF/ANSI 61 compliant liner will be utilized such as a rubber, polyuria, or epoxy material. For more information about following NSF/ANSI 61 requirements visit the DeLoach Industries website at www.DeLoachIndustries.com.

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Topics: water quality, water treatment, advanced treatment solutions, About DeLoach Industries, fabrication, contact molded process, NSF/ANSI 61, hydrogen sulfide (H2S), Decarbonation, wastewater, carbon dioxide, decarbonator

What Makes DeLoach Industries Unique?

Posted by Anthony DeLoach, President on Jul 20, 2017 3:43:33 PM

DeLoach Industries Inc. has been serving the municipal, industrial, and food and beverage industries since 1959, specializing in the design, manufacturing, operations & maintenance of water treatment wastewater treatment and odor control systems.

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Topics: water quality, aeration, water treatment, fiberglass, About DeLoach Industries

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