AT Roots Blower

AT Roots Blower

AT Roots Blower is trademark of 2 Lua Export Import Co.,Ltd suitable for supplying oxygen for aquaculture, gases for shrimp ponds, hatchery farms …

With a simple design, easy movement and installation, we can just use Motor or Diesel engine to operate.

Air capacity generates from 1.2 - 3.9 m3 / hr and you can run the AT Roots Blower at 1.5kW motor.

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AT Roots Blower

AT Roots Blower product lines

There are many different capacities to meet the demand using AT Blowers most effectively.

Depending on the gas supply need, stocking density, our technical team will help you choose the most suitable product, which both saves cost and meets your work.

We are proud to be the pioneer providing aeration solutions using AT Blowers line in VietNam.

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Trundean roots blower

Trundean Roots Blower

Trundean is the top blower manufacturer in Taiwan with over 35 years of extensive experience in the field of manufacturing blower.

The process of manipulating and manufacturing Blower are monitored by CNC machines with absolute precision.

Especially, with over 35 years of experience, Roots Blower of Trundean Manufacturer have extremely low noise, which is approximately 5dB.

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Applications of Roots Blower

For over 100 years, the world has used

Roots Blower to aerate gases in the sewage tank at industrial zones


residential areas, treat water and environment. Today, with the rapid development of the industry of aquaculture, Roots Blowers are used to maintain dissolved oxygen content in the water to help livestock develop and increase farming productivity substantially.

Wastewater aeration

Wastewater Aeration

Roots Blower used for wastewater treatment usually require large capacity, high pressure.

Greenhouse shrimp farming

Greenhouse Shrimp Farming

Culturing shrimp indoor should use the roots blower to maintain the necessary level of dissolved oxygen for stable environment.

Commercial shrimp farming

Commercial Shrimp Farming

Maintaining high dissolved oxygen concentration in the water is one of the keys to help crop succeed. If ponds have high level of dissolved oxygen, water environment is stable, shrimps will grow faster, FCR is lower and resistance is high. Toxic gases, heavy metals decompose well when oxygen in the water is high.


Nursery Postlarvae

Nursery is a process to change the living condition of Postlarvae shrimp from cement tank to natural environment. When shrimp have minimum size of 2-3 cm / shrimp, they will be transferred to grow-out pond. Shrimp quickly adapt to the environment, prey actively and grow faster, reduce wastage.


What is dissolved oxygen?

Oxygen gas dissolves freely in fresh water. Thus, oxygen from the atmosphere as well as that produced as a by-product of photosynthesis may increase the dissolved oxygen concentration in water. Oxygen is removed from the water through the processes of respiration (by both plants and animals) as well as other chemical reactions, including the decomposition of organic wastes entering the water.

The distribution of dissolved oxygen (DO) within an aquatic environment may vary horizontally or vertically and with time. Its distribution is dependent upon atmospheric contact, biological activity, wave and current actions, thermal phenomena, waste inputs and other characteristics of a lake or stream. High levels of oxygen are likely in surface water on windy days. Dissolved oxygen levels are also temperature and pressure dependent. Cold water holds more oxygen than warm water.

Photosynthesis contributes to an increase in dissolved oxygen levels during the day. However, there are biological processes in water that consume oxygen such as respiration by organisms and decomposition of organic matter by microorganisms. The oxygen consumed by these processes is called the Biological Oxygen Demand or BOD. When demand for oxygen is high and oxygen production from photosynthesis is not occurring such as before sunrise, dissolved oxygen readings can be low. Dissolved oxygen in the littoral zone may show a 4-6 mg/L diurnal fluctuation.

Deep areas of a lake would be expected to yield low dissolved oxygen readings. In summer, there are times when the dissolved oxygen at the bottom of Spring Lake approaches zero. During spring and fall turnovers, horizontal and vertical variation of dissolved oxygen is likely to be less than during the summer.

How is dissolved oxygen measured?

Since an adequate supply of oxygen is necessary to support life in a body of water, a determination of the amount of oxygen provides a means of assessing the quality of the water with respect to sustaining life. A standard chemical method to determine the amount of oxygen dissolved in a water sample is a type of titration, the Azide Modification of the Winkler Method. Precisely measured amounts of chemicals (reagents) are added to a water sample until a color change is achieved. A color change (or electrical measurement for other types of titration) marks the endpoint of the test. Two dissolved oxygen methods are used for student trips on the vessels: the Hach method with a digital titrator or a LaMotte kit. Another way to measure dissolved oxygen is to use a dissolved oxygen (DO) meter and probe. Units for measuring dissolved oxygen are parts per million (ppm) or milligrams per liter (mgL).

Because the solubility of oxygen in water is dependent upon temperature, pressure, and ionic concentrations, it is also important to calculate percentage saturation. A nomogram will permit a quick approximate oxygen saturation values. The saturation point indicates the level at which water will not generally hold any more oxygen at a given temperature. Supersaturation occurs when the water holds more oxygen molecules than usual for a given temperature. Sunny days with lots of photosynthesis or turbulent water conditions can lead to supersaturation. A water sample is "saturated" at 100% and "supersaturated" above 100%.

What is the significance of dissolved oxygen?

Dissolved oxygen levels provide information about the biological, biochemical, and inorganic chemical reactions occurring in aquatic environments. Most aquatic organisms are highly dependent upon dissolved oxygen and will experience stress, or perhaps even be eliminated from a system, when dissolved oxygen levels fall below about 3.0 ppm (parts per million). Trout species normally require an oxygen concentration greater than 10 ppm (10 mgL) whereas carp can live in water containing as little as 1-2 ppm (1-2 mgL) oxygen.

Poor water quality is also indicated by low percent saturation readings. Levels below 60% may happen with rapid biological processes such as decomposition or high temperatures. Supersaturation can be a problem for organisms in that blood oxygen levels can increase resulting in gas bubbles in the blood.

For mg/L Guidelines
0-2 mg / L not enough oxygen to support life
2-4 mg / L only a few kinds of fish and insects can survive
4-7 mg / L acceptable for warm water shrimp/fish
7-11 mg / L very good for most stream fish including cold water shrimp/fish
For percent saturation Guidelines
Below 60% poor; water too warm or bacteria using up DO
60-79% acceptable for most aquatic organisms
80-125% excellent for most aquatic organisms
112% or more too high, may be dangerous to shrimp/fish

Adapted from Testing the Waters, S. Behar, River Water Network, 1996

Sewage treatment / Wastewater Treatment is the process of removal of contaminants from the waste water which includes both house hold sewage water and industrial effluents. The objective of setting up such plants is to produce environmentally safe water, which can be easily disposed off or re-used for farming purpose. The entire process of sewage/effluent treatment consists of physical, chemical and biological processes to remove various contaminants.

Treatment of waste water at sewage treatment plants and effluent treatment plants is gaining environmental importance day by day and various laws are being enacted across countries worldwide in order to maintain and keep the environmental pollution under check. We believe in keeping environmental pollution under control and thus has been providing quality products to customers in achieving this prime objective.

High quality Roots Blowers which are also Twin Lobe and Tri Lobe, which constitute a critical equipment in sewage treatment, wastewater treatment and effluent treatment plants. The company has a wide range of Roots blowers from farming aeration. The Company gives highest importance to quality and customer satisfaction, at the same time providing solutions to customer needs.

These Roots blowers are designed and manufactured in such a way that they form the cost-effective and low maintenance solutions for some of the processes involved in sewage treatment, aeration wastewater treatment, effluent treatment plants and farming aeration.