Aeration in water is a process of introducing air into the water environment to provide oxygen to participate in chemical, physical and biological reactions of water components involving oxygen. The disadvantage of traditional aeration systems today is that there is a large loss of air. The reason is that when air enters the water environment, these millimeter-sized air bubbles easily and quickly float to the interface between the water environment and the air environment and break, releasing air from the water environment into the surrounding air environment. The retention time of the air bubbles in the water is short. The smaller the size of the air bubbles, the longer their retention time. Increasing the retention time of air (containing oxygen) in the water helps increase the contact time of oxygen with components existing in the water, such as pollutants, microorganisms, etc., thereby increasing the reaction efficiency of these components with oxygen. Therefore, research on technology to create air bubbles with smaller sizes becomes necessary and useful.
Nanobubble Generation Technology
This technology utilizes specialized equipment to introduce gases into water in the form of nanobubbles, enhancing the effectiveness of various chemical, physical, and biological processes. Key components include:
Nanobubble Generators: Devices such as swirl pumps, high-pressure gas dissolution systems, ultra-fine diffusers, and Venturi injectors ensure the stable formation of nanobubbles.
Gas Supply System: Different gases can be used for various applications, including O₂ (for water treatment and agriculture), O₃ (for disinfection), H₂ (for medical and antioxidant purposes), and air (for aquaculture).
Monitoring & Control System: Includes sensors for measuring bubble size, dissolved gas concentration, and pressure regulators to optimize nanobubble generation.
Application Systems: Reaction tanks and distribution systems that maintain efficiency in water treatment, aquaculture, and the food industry.
Advantages and Applications
Thanks to their ultra-small size and long lifespan, nanobubbles can penetrate microscopic spaces in water, significantly enhancing treatment efficiency. When they collapse, they release strong oxidizing radicals that help eliminate bacteria, remove contaminants, and improve water quality. Nanobubbles are widely applied in:
Water Treatment & Environmental Applications: Removal of heavy metals, sterilization, odor reduction, and improving water quality for domestic and industrial use.
Agriculture & Aquaculture: Increasing dissolved oxygen levels, promoting faster plant growth, and improving the health of aquatic animals.
Medical & Healthcare: Used in disinfection, wound cleaning, and drug delivery enhancement.
Food Industry: Cleaning fruits and vegetables, extending shelf life, and ensuring food safety.
Global Adoption
Japan: Leading in wastewater treatment and agriculture, increasing dissolved oxygen levels in irrigation water without excessive chemical use.
United States: Focused on medical applications, utilizing nanobubbles for targeted drug delivery to minimize side effects.
South Korea: Implemented in cosmetics to enhance the absorption of skincare products.
China: Strong developments in aquaculture, optimizing oxygen supply for fish and shrimp farming.
Nanobubble Technology in Vietnam
Nanobubble technology is being researched and applied in aquaculture to improve pond environments, maintain stable dissolved oxygen levels, and reduce disease risks. Some companies and individuals have independently developed nanobubble generators for practical applications, notably HTC, which has been conducting research since 2014. Additionally, this technology is used in wastewater treatment to remove pollutants without relying heavily on chemicals.
SOLEN’s Applications
SOLEN is one of the leading providers of nanobubble generators in Vietnam, offering solutions for aquaculture, wastewater treatment, high-tech agriculture, and food processing. Their devices integrate seamlessly into existing systems, helping businesses optimize efficiency while protecting the environment.
For more details on SOLEN’s nanobubble generator, visit: https://solenvn.com/dau-tao-bot-khi/
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