What are Nanobubbles?

About Nanobubbles:

• Nanobubbles are 70-120 nanometers in size, 2500 times smaller than a single grain of salt.
• They can be formed using any gas and injected into any liquid.
• Nanobubbles have unique physical and chemical properties and are superior to other aeration methods.
• Therefore, nanobubble technology is used in a variety of applications, including water treatment, agriculture, aquaculture, food processing, and other industrial areas.
• Properties:
  • Large Surface Area: Nanobubbles have a high surface area to volume ratio, allowing for a greater amount of gas to be in contact with water. This, combined with their ability to remain suspended in water due to their small size and high buoyancy, results in increased gas transfer efficiency between the gas and water phases.
  • Brownian Motion: Nanobubbles stay in the water for a long time. This unique feature enables nanobubbles to provide a homogenous distribution of oxygen throughout an entire body of water and dissolved oxygen levels are maintained for a very long time.
  • High Oxygen Transfer Efficiency: Nanobubble can efficiently deliver oxygen into water due to the very large surface area and their Brownian motion. Oxygen transfer efficiency with nanobubble is reached to around 90%.
  • Surface charge: Nanobubble has a strong surface charge. This negative charge improves separation efficiency in the floating process. This feature floats more suspended matter than through conventional methods in the wastewater, oil, and gas operators.
• Benefits: Due to the various inherent physical properties of nanobubbles, the ability to transfer gas to liquid is very high, and thus has the following advantages.
  • Improved Water Treatment: Nanobubbles can effectively remove organic pollutants, bacteria, and other contaminants from water.
  • More Efficient Cleaning: Nanobubbles can penetrate surface pores and crevices, providing a more thorough cleaning that is effective against stubborn dirt and grime. 
  • Enhanced Agriculture and Aquaculture: Supplying oxygen nanobubbles to plants and aquatic organisms can improve their growth, health, and resilience. Nanobubbles can also enhance nutrient absorption, reduce the need for pesticides and other chemicals, and improve crop yields.
  • Enhanced Oil and Gas Recovery: Nanobubbles can increase the efficiency of oil and gas recovery by improving the flow of fluids and reducing the amount of chemicals needed in the process.
  • Improved Skin and Hair Health: Nanobubbles can help enhance the absorption of skincare products, leading to healthier skin.

Q1: What is Brownian Motion?

Brownian motion is the random motion of particles suspended in a fluid (a liquid or a gas) resulting from their collision with the fast-moving atoms or molecules in the gas or liquid. It was first observed by the Scottish botanist Robert Brown (1773-1858); this 1827 serendipitous discovery has sparked a plethora of important developments in many branches of science, fluids included.

News: Union Minister Sh. Kirti Vardhan Singh Launches ‘Nano Bubble Technology’ for cleaning and purifying water in National Zoological Park, Delhi to promote the health of aquatic animals

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