DELOACH BLOG

Reverse Osmosis-A walk in time

Posted by Anthony DeLoach, President on Aug 21, 2018 8:53:00 AM

DeLoach Industries made history in 1977 at the City of Cape Coral Florida water treatment plant with its large scale “degasification towers” connected to what was to become the first municipal water treatment facility in the United States to deploy the use of reverse osmosis on a large-scale production municipal treatment plant.

The Cape Coral water treatment plant for came on line in 1977 and produced 3 million gallons of water per day (GPD) or 11.35 liters of purified and treated water utilizing the “reverse osmosis” process. By 1985 the plant had expanded as it kept up with growth to produce 15 million gallons per day making it at the time the worlds’ largest “reverse osmosis” water treatment plant facility.

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Topics: water quality, pH levels of water, water treatment, advanced treatment solutions, water plant, hydrogen sulfide (H2S), pH levels, Alkalinity, scaling, chlorine, caustic, Decarbonation, wastewater, carbon dioxide, degasifier, RO membrane, RO system, H2S Degasifier

Industrial Boiler Feed Water For Steam

Posted by Anthony DeLoach, President on Jul 31, 2018 10:01:00 AM

Industrial Boiler feed water in water treatment.

In the USA market alone it is estimated the manufacturing industry consumes over 400 millions of gallons per day (MGD) of water to produce steam. Approximately 60 millions of gallons per day (MGD) of water is sent to the blow down drains in manufacturing. Another approximate 300 millions of gallons per day (MGD) of steam is consumed for direct injection. All this steam required in manufacturing shares the same common need, “water”. But not only water but “purified and treated” water is needed. For without the treatment process US manufacturers would face constant shut downs and increased capital spending driving their cost of goods through the roof. One form of water treatment to protect boilers is degasification and deaeration.

Degasification towers remove

hydrogen sulfide (H2S) and carbon dioxide (CO2), and quite often dissolved oxygen (DO). Removing dissolved corrosive gases is critical to the life and efficiency of the boiler and if the gases remain in the boiler feed water such as carbon dioxide (CO2) it will create a recipe for disaster, higher operating cost, and a reduced life for the boiler system. The carbon dioxide (CO2) will convert into carbonic acid and form a corrosive condition for the boiler and other critical components. If a boiler system is operating an ion exchange process prior to the boiler the regeneration cost will increase dramatically because the resins will be consumed by the carbon dioxide (CO2). In addition to preserving and increasing the life of the resin the removal of the carbon dioxide (CO2) will elevate the pH of the water without the addition of other chemicals again lowering the operating cost of the system.

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Topics: water treatment issues, degasification, iron oxidation, water treatment, water distribution system, advanced treatment solutions, water plant, hydrogen sulfide (H2S), Decarbonation, ION Exchange Resin, feed water, De-Aeration, steam generation, steam generating boilers, carbon dioxide, steam, decarbonator, boiler system, degasifier, gases, RO membrane, carbonic acid, RO system, H2S Degasifier, Boiler feed water

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

Scrubber Pack Media

Posted by Anthony DeLoach, President on Jul 19, 2018 3:53:58 PM
Watertower Clean (wistia video)

Many types of water treatment systems depend on some type of media to provide the best performance required as it relates to water treatment and waste water treatment. For use in reverse osmosis there is a reliance on membranes which act as filters to separate the solids from the water. For ion exchange there are “resins” whether AION or CATION the resins works to treat hard and corrosive water. Degasification and decarbonation towers both require an internal media and sometimes this is referred to as “Random Packing” or “Loose Fill Media” and in this process the media acts like a traffic cop directing traffic.

In this case it directs the water on its way down and through a towers internals where it is constantly reshaping the water droplets over and over again forcing gas molecules to come to the surface edge of the water where they are removed. Carbon filters also require a media which is of course “Carbon”. The carbon media acts like a sponge absorbing the contaminants that you wish to remove from the water until it is saturated and must be replaced or regenerated. Even sand filters or pressure filters require a media.

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Topics: degasification, water treatment, water plant, media packing, Decarbonation, ION Exchange Resin, feed water, wastewater, decarbonator, gases, RO membrane

How To Protect Your Pharmaceutical Water

Posted by Anthony DeLoach, President on Jun 12, 2018 12:00:00 AM

The need to remove dissolved gases from water in the pharmaceutical process is well known within the water treatment industry. However, the method of removing the gases varies and depending on the quality of the water a wrong selection can wreak havoc on your process water equipment, such as the steam boiler or distillation columns. If the water contains high levels of Carbon Dioxide (CO2) than it can form carbonic acid which will attack and corrode both the steam boiler tubes as well as the distillation columns. Removing the dissolved gases by adding a Degasification tower or “Degasifier” will ensure that the dissolved gases like Hydrogen sulfide (H2S) and Carbon Dioxide (CO2) have been removed to acceptable levels of below 7 ppb.  Also utilizing a degasification tower is the most cost-effective way to reduce and eliminate the gases in the water stream, R.O. membranes are used to and require pH adjustment to achieve the same results because of the need to convert the Carbon Dioxide (CO2) into carbonates first.

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Topics: degasification, water treatment, hydrogen sulfide (H2S), dissolved gases, pharmaceutical water, carbon dioxide, degasifier, gases, RO membrane, carbonic acid, RO system

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