Manual
Prepared as an introductory resource
Version: June 2026
Welcome to Nano Bubble Technologies
We are Australia’s leading provider of nanobubble technology, with over a decade of real-world application across sports turf, agriculture, aquaculture, wastewater treatment, lakes & ponds, and industrial processes. Our patented systems deliver sustainable, science-backed solutions that improve water quality, boost efficiency, reduce chemical use, and drive measurable ROI.
This manual introduces nanobubbles—what they are, how we generate them, their benefits across industries, and the underlying science. Use it as a reference and foundation for deeper training. Our technology stems from long-term R&D with the University of New South Wales (UNSW) and has earned recognition like the 2025 Australian Good Design Award.
Section 1: What Are Nanobubbles?
Nanobubbles (also called ultrafine bubbles) are gas-filled cavities in a liquid with diameters typically under 200–500 nm (often ~100 nm or less in our systems)—roughly 2,500 times smaller than a grain of salt or 1/400th the width of a human hair.
Key differences from ordinary (macro) bubbles:
• Ordinary bubbles (millimeter scale): Rise rapidly due to buoyancy, burst at the surface in seconds to minutes, and have limited gas
transfer.• Nanobubbles: Remain suspended for weeks (or longer), stay uniformly distributed, and provide sustained effects throughout the
entire liquid volume, including sediments and pores.
Core properties of nanobubbles (especially NBT’s):
• Ultra-small size: Enables deep penetration into soil, biofilms, root zones, and microscopic spaces; creates enormous surface area
for reactions.• High stability: Negative surface charge (zeta potential) causes repulsion between bubbles, preventing coalescence. Brownian
motion keeps them dispersed.• Superior gas transfer: >85–90% efficiency (vs. much lower for traditional aeration), allowing supersaturation (e.g., dissolved oxygen
>23 ppm).• Oxidation power: Collapse or interface effects generate hydroxyl radicals (•OH), powerful oxidants for breaking down organics,
pathogens, and contaminants without added chemicals.
These properties transform water from a simple carrier into an active, high-performance medium for oxygenation, sanitisation, and nutrient delivery.
Section 2: How Nanobubbles Are Generated
Multiple methods exist for producing nanobubbles, including hydrodynamic cavitation, ultrasonic/acoustic cavitation, electrolysis, venturi/ejector systems, static mixers, and pressurised dissolution.
NBT’s Patented Approach (Membrane Shear / Nano Bubble Injector): Our Australian-made, market-leading system uses porous titanium or stainless-steel membranes. Gas (oxygen, ozone, etc.) is introduced under controlled pressure into a chamber. Liquid flows through/around the membrane, shearing the gas into ultra-fine bubbles that are entrained in the flow.
Advantages of our technology:
• Produces some of the smallest and highest-density nanobubbles (verified by Nanoparticle Tracking Analysis/NanoSight).• High efficiency with low energy use and minimal maintenance (no moving parts in core injector in many designs).• Scalable and adaptable for inline integration.• Superior to many electrochemical or pure cavitation methods in stability and density.
Independent verification confirms our nanobubbles via NTA, the gold standard for size distribution and concentration. We optimise for specific gases and applications (e.g., O₂ for oxygenation, O₃ for stronger oxidation). Generation factors influencing performance include gas type, pressure, flow rates, temperature, pH, and membrane characteristics. Our systems are engineered for reliability in real-world conditions.
Section 3: The Science Behind the Benefits
Nanobubble efficacy is grounded in physics, chemistry, and biology:
1. Mass Transfer and Dissolution
High surface-to-volume ratio + long residence time → exceptional gas dissolution. Traditional aeration loses most gas to the atmosphere; nanobubbles deliver it where needed (roots, microbes, sediments).
2. Hydroxyl Radical Generation
Bubble collapse or gas-liquid interfaces produce •OH radicals. These are among the strongest oxidants, enabling chemical-free breakdown of organics, biofilms, pathogens (bacteria, fungi, viruses), and pollutants. Ozone nanobubbles amplify this (ozone reverts to O₂). 3. Surface Charge and Interactions
Negative charge attracts positively charged contaminants/nutrients, aids uniform distribution, and helps destabilise biofilms or scale.
4. Biological and Ecological Effects
Elevated dissolved oxygen (DO) boosts aerobic microbial activity, root respiration, and organism health. Reduced anaerobic zones cut odours, methane, and sludge. Improved infiltration and soil structure in agriculture/turf.
5. Verification and Measurement
Tools: NanoSight NTA for bubble characterisation; DO probes, ORP, BOD/COD testing, microbial counts, and field performance metrics. Research partnerships (e.g., UNSW) provide rigorous validation.
Controversies/Considerations: Not all nanobubble claims are equal—bubble size, concentration, stability, and gas type matter. Results depend on application design. NBT emphasises measured, real-world performance over hype.
Section 4: Benefits Across Industries
NBT systems deliver consistent themes: higher DO/oxidation, lower energy/chemical use, better yields/quality, and environmental gains.Sports
Turf & Golf Courses
• Deeper roots (up to 2x), faster infiltration, healthier soil microbiology.
• Reduced pathogens (e.g., Pythium, dollar spot) without fungicides.
• Better resilience, playability, and reduced water/inputs.
Agriculture & Hydroponics
• Enhanced germination, nutrient uptake, root/shoot mass.
• Improved composting (faster, less odour/methane).
• Higher yields, drought/stress resistance, chemical-free pathogen control.
Aquaculture (Ponds, RAS, Biofloc, Net Pens)
• Better water quality, lower ammonia/nitrite, pathogen control.
• Reduced mortality, faster growth, higher stocking densities with less energy.
Wastewater Treatment (Municipal, Industrial, Commercial)
• Supercharges aerobic digestion → lower BOD/COD, reduced sludge.
• Odour/discoloration elimination, biofilm/organic breakdown.
• Energy savings, chemical reduction, better effluent compliance.
• Enhanced dissolved air flotation (DAF) performance.
Lakes, Ponds & Water Bodies
• Whole-column + sediment oxygenation eliminates dead zones and algae.
• Oxidises sludge, restores ecosystems naturally.
Industrial Applications
• CIP cleaning, malting, car wash reclaim, poultry/dairy, hydroponics.
• Chemical-free sanitisation, scale control, resource recovery.
Cross-Cutting Benefits:
• Energy savings (up to 50%+ on aeration).
• Chemical reduction or elimination.
• Higher productivity and quality.
• Sustainability and regulatory compliance.
Section 5: Scientific Confirmation and Case Evidence
NBT’s claims are backed by:
• University collaborations (UNSW and others) for development and validation.
• Independent testing (NTA, performance metrics).
• Real-world case studies showing quantifiable results (e.g., root mass increases, BOD reductions, algae control, pathogen elimination).
Broader peer-reviewed literature supports nanobubble advantages in gas transfer, oxidation, agriculture, water treatment, and more. Examples include enhanced plant growth, wastewater efficiency, and flotation processes. Our 10+ years of deployments provide practical proof beyond lab settings.
Section 6: NBT Products, Implementation, and Best Practices
• Systems: Modular injectors/generators for various flows and gases. Inline integration into existing irrigation, aeration, or treatment lines.
• Installation: Site assessment, flow/pressure matching, gas supply (O₂ generators, O₃, etc.), monitoring (DO, etc.).
• Maintenance: Low—focus on membrane cleanliness, gas quality, and system checks.
• Safety: Standard gas handling (O₃ requires care), electrical, and water treatment protocols.
• Monitoring & Optimisation: Use data to tune performance; integrate with sensors/IoT where possible.
Contact technical/sales teams for specifics. We offer demonstrations and custom solutions.
Section 7: Company Context
Founded in 2015 in Sydney, NBT focuses on disruptive, adaptable nanobubble solutions. We emphasise science, results, and sustainability.
Key Takeaways:
• Nanobubbles are a game-changing, green technology.
• NBT’s patented systems deliver proven, high-performance results.
• Benefits are rooted in physics/chemistry and validated in the field.
• We help clients do more with less—water, energy, chemicals—while improving outcomes.
For further reading: Explore nanobubblelibrary.com, peer-reviewed papers, and our internal resources. Our technology evolves—stay curious and evidence-based.
1. Mass Transfer and Dissolution
High surface-to-volume ratio + long residence time → exceptional gas dissolution. Traditional aeration loses most gas to the atmosphere; nanobubbles deliver it where needed (roots, microbes, sediments).
2. Hydroxyl Radical Generation
Bubble collapse or gas-liquid interfaces produce •OH radicals. These are among the strongest oxidants, enabling chemical-free breakdown of organics, biofilms, pathogens (bacteria, fungi, viruses), and pollutants. Ozone nanobubbles amplify this (ozone reverts to O₂). 3. Surface Charge and Interactions
Negative charge attracts positively charged contaminants/nutrients, aids uniform distribution, and helps destabilise biofilms or scale.
4. Biological and Ecological Effects
Elevated dissolved oxygen (DO) boosts aerobic microbial activity, root respiration, and organism health. Reduced anaerobic zones cut odours, methane, and sludge. Improved infiltration and soil structure in agriculture/turf.
5. Verification and Measurement
Tools: NanoSight NTA for bubble characterisation; DO probes, ORP, BOD/COD testing, microbial counts, and field performance metrics. Research partnerships (e.g., UNSW) provide rigorous validation.
Controversies/Considerations: Not all nanobubble claims are equal—bubble size, concentration, stability, and gas type matter. Results depend on application design. NBT emphasises measured, real-world performance over hype.
Section 4: Benefits Across Industries
NBT systems deliver consistent themes: higher DO/oxidation, lower energy/chemical use, better yields/quality, and environmental gains.Sports
Turf & Golf Courses
• Deeper roots (up to 2x), faster infiltration, healthier soil microbiology.
• Reduced pathogens (e.g., Pythium, dollar spot) without fungicides.
• Better resilience, playability, and reduced water/inputs.
Agriculture & Hydroponics
• Enhanced germination, nutrient uptake, root/shoot mass.
• Improved composting (faster, less odour/methane).
• Higher yields, drought/stress resistance, chemical-free pathogen control.
Aquaculture (Ponds, RAS, Biofloc, Net Pens)
• Better water quality, lower ammonia/nitrite, pathogen control.
• Reduced mortality, faster growth, higher stocking densities with less energy.
Wastewater Treatment (Municipal, Industrial, Commercial)
• Supercharges aerobic digestion → lower BOD/COD, reduced sludge.
• Odour/discoloration elimination, biofilm/organic breakdown.
• Energy savings, chemical reduction, better effluent compliance.
• Enhanced dissolved air flotation (DAF) performance.
Lakes, Ponds & Water Bodies
• Whole-column + sediment oxygenation eliminates dead zones and algae.
• Oxidises sludge, restores ecosystems naturally.
Industrial Applications
• CIP cleaning, malting, car wash reclaim, poultry/dairy, hydroponics.
• Chemical-free sanitisation, scale control, resource recovery.
Cross-Cutting Benefits:
• Energy savings (up to 50%+ on aeration).
• Chemical reduction or elimination.
• Higher productivity and quality.
• Sustainability and regulatory compliance.
Section 5: Scientific Confirmation and Case Evidence
NBT’s claims are backed by:
• University collaborations (UNSW and others) for development and validation.
• Independent testing (NTA, performance metrics).
• Real-world case studies showing quantifiable results (e.g., root mass increases, BOD reductions, algae control, pathogen elimination).
Broader peer-reviewed literature supports nanobubble advantages in gas transfer, oxidation, agriculture, water treatment, and more. Examples include enhanced plant growth, wastewater efficiency, and flotation processes. Our 10+ years of deployments provide practical proof beyond lab settings.
Section 6: NBT Products, Implementation, and Best Practices
• Systems: Modular injectors/generators for various flows and gases. Inline integration into existing irrigation, aeration, or treatment lines.
• Installation: Site assessment, flow/pressure matching, gas supply (O₂ generators, O₃, etc.), monitoring (DO, etc.).
• Maintenance: Low—focus on membrane cleanliness, gas quality, and system checks.
• Safety: Standard gas handling (O₃ requires care), electrical, and water treatment protocols.
• Monitoring & Optimisation: Use data to tune performance; integrate with sensors/IoT where possible.
Contact technical/sales teams for specifics. We offer demonstrations and custom solutions.
Section 7: Company Context
Founded in 2015 in Sydney, NBT focuses on disruptive, adaptable nanobubble solutions. We emphasise science, results, and sustainability.
Key Takeaways:
• Nanobubbles are a game-changing, green technology.
• NBT’s patented systems deliver proven, high-performance results.
• Benefits are rooted in physics/chemistry and validated in the field.
• We help clients do more with less—water, energy, chemicals—while improving outcomes.
For further reading: Explore nanobubblelibrary.com, peer-reviewed papers, and our internal resources. Our technology evolves—stay curious and evidence-based.