Nanobubble Technology
What are nanobubbles?
Nanobubbles are tiny bubbles, sometimes referred to as “Ultra-Fine Bubbles”. They are 100 times smaller than a human skin pore, sized between 50 to 500 nanometers. Their small size and negative electric charge allows them to remain in water for extended periods without dispersing. They offer significant benefits across industries ranging from Agriculture, Aquaculture, Water Treatment to Beauty industries
Nanobubble Behavior
Brownian Motion of nanobubbles
Nanobubbles are so small that they are affected by 'Brownian Motion', the random movement caused by collisions with water molecules. This keeps them suspended in the water instead of rising quickly like larger bubbles, allowing them to stay active longer.
Nanobubble Characteristics
Understanding the Power of Nanobubbles
Nanobubbles have a high surface area-to-volume ratio due to their small size, allowing them to dissolve oxygen more efficiently. Their random movement from Brownian motion keeps them suspended in water, while their negatively charged surfaces prevent coalescence, ensuring they stay stable, evenly dispersed, and capable of delivering oxygen or applied gas consistently throughout the water.
Nanobubbles have hydrophobic gas-liquid interfaces, allows them to attach to and interact with non-polar or hydrophobic contaminants such as oils and organic waste. Their negatively charged surfaces also promotes attraction to positively charged particles, aiding in the removal of suspended pollutants.
Nanobubble Advantages
Tiny Bubbles, Big Impact
Nanobubbles are a safer, chemical-free, and low-energy solution to effectively increase dissolved oxygen levels and improve water quality.
Environment-friendly solution
Nanobubbles promote eco-friendly solutions by enhancing efficiency, minimizing chemical use, optimizing operation, reducing energy consumption, and supporting non-invasive applications across industries
Boosts stocking densities and survival rates
Nanobubbles creates a more favorable environment for aquatic organisms, optimal growth conditions, reducing stress, and improving the overall survival rates of densely stocked populations
Improves efficiency of solids removal in water bodies
Nanobubbles improve particle agglomeration, aiding in the oxidation and degradation of organic matter. They support biological activity and reduce energy requirements in water treatment and filtration.
Cost-effective method for oxygenation and gas liquid mixing
Nanobubbles offer cost-effective oxygenation by improving dissolution efficiency, increasing transfer rates, reducing energy consumption, optimizing utilization, and extending residence time in water
Why Greenano
Greenano's product innovation
Global customers rely on Greenano's technology for its effectiveness, user friendly, scalability, dependability, and demonstrated outcomes. Greenano provides Nanobubble solutions in diverse applications, from aquaculture, agriculture, water treatment to household and beauty. Our products are cost effective, easy to install, compact size, does not require extra electricity and fully customizable
Performance Validation
Measured Nanobubble Generation Results
We validated the performance of our nanobubble generators using the Shimadzu SALD-7500nano, a high-precision particle size analyzer. Testing confirmed that our devices generate both microbubbles and nanobubbles under standard operating conditions.
Microbubble under 100 μm Measurement (Immediately After Generation)
Median Diameter
Mode Diameter
0.5–10 μm
10–100 μm
Total (0.5–100 μm)
21.532 μm
28.184 μm
752 bubbles/mL
2,083 bubbles/mL
2,835 bubbles/mL
Microbubble under 100 μm Measurement (Immediately After Generation)
Median Diameter
21.532 μm
Mode Diameter
28.184 μm
0.5–10 μm
752 bubbles/mL
10–100 μm
2,083 bubbles/mL
Total (0.5–100 μm)
2,835 bubbles/mL
Nanobubble Measurement (Immediately)
Median Diameter
0.109 μm
Mode Diameter
0.089 μm
Average Diameter
0.113 μm
Bubble Count (0.05~20μm)
147,098,091 bubbles/mL
Nanobubble Measurement (After 3 hours)
Median Diameter
0.154 μm
Mode Diameter
0.141 μm
Average Diameter
0.157 μm
Bubble Count (0.05~20μm)
69,348,760 bubbles/mL
Nanobubble Measurement (After 24 hours)
Median Diameter
0.104 μm
Mode Diameter
0.089 μm
Average Diameter
0.109 μm
Bubble Count (0.05~20μm)
166,955,240 bubbles/mL
Nanobubble Measurement (After 5 days)
Median Diameter
0.105 μm
Mode Diameter
0.089 μm
Average Diameter
0.108 μm
Bubble Count (0.05~20μm)
111,941,686 bubbles/mL
Nanobubble Measurement (Over Time)
Median Diameter
Mode Diameter
Average Diameter
Bubble Count (0.05~20μm)
Immediately
0.109 μm
0.089 μm
0.113 μm
147,098,091 bubbles/mL
After 3 hours
0.154 μm
0.141 μm
0.157 μm
69,348,760 bubbles/mL
After 24 hours
0.104 μm
0.089 μm
0.109 μm
166,955,240 bubbles/mL
After 5 days
0.105 μm
0.089 μm
0.108 μm
111,941,686 bubbles/mL
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