Nanobubble Technology

Historically, the solubility of oxygen in water has been capped at ~9 ppm under standard atmospheric conditions - a constraint that has limited water quality optimisation across multiple domains, especially agriculture. NBT aimed to redefine this threshold by engineering a system that introduces significantly higher concentrations of active gases into water via ultra-fine nanobubbles, particles small enough to remain suspended and biologically effective, yet robust enough to be produced at commercial scale.

A modular nanobubble injector system consistently generating gas-filled nanobubbles, mean diameter of 75 nanometres - significantly smaller than prior 200–400 nm benchmark. Key engineering advancements include: Electrohydrodynamic Design: Engineered nozzle geometry and flow regimes enable stable generation of nanobubbles without the need for surfactants or additives. Charge-Stabilised Bubbles: Each nanobubble carries a negative surface charge, which inhibits coalescence and enhances suspension time, increasing residence and delivery effectiveness. Selective Gas Integration: The system supports various gases (e.g., O₂, O₃, CO₂), with application-specific delivery protocols optimised through adaptive injector calibration. Injectors can be deployed standalone or scaled in banks of up to 40 units (containerised format), collectively treating 3.5 megalitres/day. The system integrates seamlessly with existing water infrastructure, requiring only power and standard water connections.

Agriculture and Horticulture Increased Oxygen Solubility: Up to 45 ppm dissolved oxygen - a fivefold increase facilitating root-level aeration and accelerating plant metabolism. Improved Soil Health: Nanobubbles improve nutrient uptake, decreasing fertiliser dependence. Water Efficiency: Enhanced hydration at the root zone reduces irrigation frequency and volume. Industrial Wastewater Treatment Oxidative Power with Ozone: Nanobubbles containing O₃ provide high redox potential with no residual contamination, effectively neutralising bacteria and oxidising heavy metals like iron for easy separation. Scalability: Proven operation in high-throughput environments, such as wash bays and processing facilities, with no additional chemical footprint. Emerging Biomedical Potential Preliminary studies suggest nanobubbles may enhance transdermal oxygen delivery and wound recovery, indicating promising applications in skin care and burn treatment.

Nanobubble Size: 75 nm diameter – 1/400th the width of a human hair. Suspension Longevity: Negatively charged bubbles remain suspended for extended periods, preventing premature off-gassing. Scalable Deployment: 10-injector unit processes 1.28 ML in 8 hours; up to 40 units in modular containerised units. Multi-Gas Capability: Oxygen, ozone, and CO₂ can be introduced across various fluid media including water and cream emulsions. Material Excellence: Components are constructed from corrosion-resistant titanium and engineering polymers for minimal maintenance.