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Nanobubble Technology for Water Quality Improvement
Nanobubbles have high specific surface areas and high stagnation times because of its nano-sized, which leads to mass transport efficiencies at the gas-liquid interfaces. In addition, nanobubbles have an electrically charged surface which prevents bubbles from coalescence, and because of its high densities, nanobubbles allow to create a high rate of gas dissolution in water.
Based in Indonesia, the technology owner has developed a nanobubble generation process that produces nano-sized bubbles in the range of 100-200 nm. The process utilises multiphase gas-liquid flow contact principle, in which pressurised gas (nitrogen, oxygen or ozone) is injected into a water flow to form a multiphase flow. This multiphase flow is then passed through a proprietary honeycomb structure, forming nano-sized bubbles. The small size of the bubbles makes it stable, not easy to agglomerate or coalesce so that it lasts a long time in water.
Nanobubble technology is currently being applied to improve the water quality of aquaculture ponds, increase the growth of hydroponic plants, poultry, wastewater treatment and drinking water treatment. Until now, the development of nanobubble technology continues to be carried out for implementation in other fields. The technology owner is seeking industry partners to license and adopt the technology for various applications.
Technology Features, Specifications and Advantages
- Various types and capacities of nanobubble generators have been developed for specific applications. For a standard 1-2 HP machine, the coverage area is at 20-500 m3/unit and the nano bubble size generated is less than 200 nm in average.
- Up to 20 ppm of dissolved oxygen in the output.
- Increase feed consumption efficiency, expand biomass capacity of shrimp.
- Fisheries, e.g, shrimp and fish aquaculture for increased productivity, improved water quality.
- Agriculture, e.g. hydroponic, aquaponic.
- Cooling tower, e.g. reduction of fouling and biofouling.
- Wastewater treatment, e.g., water purifier, removal of organic matter.
- Drinking water treatment, e.g. disinfection, removal of bacteria and microbe, increase dissolved oxygen content.
- Poultry farm, e.g. removal of bacteria (E. coli) in water.
- Enhance productivity for increased profits.
- Reduce the potential crop damage due to poor water quality.
- Economical, easy to use (24/7) and maintain.
- No harmful residue from the process.