Nano Bubble Generator: Advanced Solution for Water Treatment and Aquatic Ecosystem Optimization

As the demand for water treatment, aquaculture, and high-tech agriculture continues to grow, traditional aeration technologies are increasingly revealing limitations such as high oxygen loss, low dissolution efficiency, and high energy consumption. In response to these challenges, nano bubble technology has emerged globally as a promising solution thanks to its ability to significantly improve oxygen transfer efficiency and sustainably enhance water quality.

To bring advanced environmental technology solutions to the Vietnamese market, SOLEN officially introduces its Nano Bubble Generator series — a device utilizing ultra-fine bubble technology to optimize aeration processes, support water treatment, and improve aquatic environments across various applications.

1. What is Nano Bubble Technology?

Nano bubble technology generates extremely small gas bubbles, typically ranging from tens to hundreds of nanometers in diameter. Due to their ultra-small size, these bubbles remain suspended in water for a much longer time, distribute evenly, and significantly improve gas exchange efficiency.

Unlike conventional millimeter-sized bubbles that quickly rise to the surface and burst, nano bubbles remain in the water for extended periods, providing the following advantages:

  • Improved gas dissolution efficiency
  • Reduced energy loss
  • Slower rise to the water surface
  • Reduced chemical usage in water treatment, agriculture, and aquaculture
  • Enhanced oxidation and biological decomposition processes

International studies have shown that nanobubble technology has strong potential in water treatment, aquaculture, and agriculture due to its ability to improve dissolved oxygen (DO) levels and biological treatment performance.

2. Working Principle of Nano Bubble Generators

Nano bubble generators operate based on vortex flow generation and gas dissolution under controlled pressure conditions, creating ultra-fine bubbles that disperse evenly throughout the water.

A typical nano bubble system generally includes:

  • Nano bubble generator unit
  • Gas dissolution system
  • Ultra-fine diffuser
  • Venturi injector or vortex pump
  • Pressure and dissolved gas monitoring system

Thanks to their small size and large surface area, nano bubbles can diffuse deeper into the water column, enhancing oxygen utilization efficiency and helping stabilize aquatic environments.

3. Key Benefits of Nano Bubble Technology

Efficient Dissolved Oxygen Enhancement

Nano bubbles prolong oxygen retention in water, significantly improving dissolved oxygen (DO) levels, especially in aquaculture systems, biological ponds, and wastewater treatment facilities.

Water Treatment and Odor Control Support

As nano bubbles interact and collapse in water, they can support oxidation processes, helping reduce odors and accelerate the decomposition of organic matter.

Reduced Energy Loss

Compared to conventional aeration systems, nanobubble technology improves oxygen transfer efficiency, reducing gas waste and optimizing energy consumption.

Reduced Chemical Usage

In many water treatment and aquaculture applications, enhanced dissolved oxygen and biological efficiency can help reduce the need for chemicals and supporting additives.

4. Practical Applications of Nano Bubble Generators

Aquaculture

Nanobubble technology is widely applied in shrimp and fish farming to:

  • Maintain stable DO levels
  • Prevent oxygen depletion
  • Reduce NH₃ and H₂S concentrations in ponds
  • Improve aquatic living conditions

Wastewater and Water Supply Treatment

Nano bubble systems support aerobic treatment processes, improve biological oxidation efficiency, and enhance existing treatment systems.

High-Tech Agriculture and Hydroponics

This technology increases oxygen availability around plant roots, supporting healthier growth in hydroponic and recirculating water systems.

Landscape Ponds and Koi Ponds

Nano bubble generators help improve water clarity, reduce odors, and maintain stable aquatic ecosystems.

5. Nano Bubble Generators Distributed by SOLEN

SOLEN is one of the pioneering companies in Vietnam specializing in the research, application, and implementation of nano bubble technology.

The nano bubble generators distributed by SOLEN are manufactured by Japanese companies and designed to produce ultra-fine bubbles evenly dispersed in water, enhancing oxygen supply efficiency and supporting aquatic environmental treatment.

SOLEN focuses on:

  • Researching and optimizing technology suitable for Vietnamese conditions
  • Applying nanobubble solutions in water treatment, aquaculture, and high-tech agriculture
  • Delivering practical improvements in water quality, productivity, and environmental sustainability

Key Features

  • Compact and easy-to-integrate design
  • Flexible connection with existing pump systems
  • SUS316 corrosion-resistant material
  • Stable operation and high durability
  • Suitable for various application scales

Technical Specifications

 MB 50L

  • Flow Rate = 50 L/min
  • Water Pressure = 0.15 MPa
  • Material = SUS 316
  • Weight = 960 g
  • Port Size = Female thread PT1/2 –
  • Male thread PT3/4
  • Air Inlet Port Diameter = PT1/8
  • External Dimensions = φ 55 × 105 mm
MB 200L

  • Flow Rate = 200 L/min
  • Water Pressure = 0.15 MPa
  • Material = SUS 316
  • Weight = 6.6 kg
  • Port Size = Male thread PT2 –
  • Male thread PT2
  • Air Inlet Port Diameter = PT3/8
  • External Dimensions = φ 98 × 240 mm

6. Global Technology Trends and Vietnam’s Direction

Nano bubble technology has been developed for over 70 years and is now widely applied in Japan, the United States, Europe, and many Asian countries in water treatment, aquaculture, and high-tech agriculture.

In Vietnam, nanobubble technology is gradually gaining attention as a green technology solution that helps:

  • Improve water resource efficiency
  • Reduce chemical consumption in production
  • Support sustainable agricultural and environmental development

With a commitment to adopting advanced environmental technologies, SOLEN is gradually bringing nano bubble solutions into practical applications suitable for Vietnam’s operational conditions.

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