What a nanobubble does that a bubble can't.
A nanobubble is smaller than 200 nm — a fraction of the width of a coarse aeration bubble. At that scale the physics change: it stops rising, stays suspended for days, and moves oxygen into water with unusual efficiency.
Small enough to behave like a solute.
Sub-micron size
Orders of magnitude smaller than coarse bubbles, so buoyant force is negligible and the bubble stays in the water body.
Long persistence
Instead of surfacing in seconds, nanobubbles remain suspended for days to weeks, working the full water column.
Negative charge
A negative zeta-potential destabilises suspended algae and fine solids and keeps bubbles dispersed rather than coalescing.
High mass transfer
Enormous combined surface area drives oxygen into solution efficiently — to supersaturation, well above what blowers achieve.
One input — oxygen — four treatment effects.
Dissolved-oxygen supersaturation
The water column is lifted from anaerobic to fully aerobic. Aerobic bacteria — nitrifiers especially — get the oxygen they need to break down organics and oxidise ammonia at speed.
Raised redox / ORP
Higher oxidation potential accelerates the breakdown of contaminants and supports disinfection, driving down pathogen counts alongside the biology.
Algae destabilisation
Negatively charged nanobubbles and high DO disrupt the conditions blue-green algae depend on, clearing the blooms that plague eutrophic ponds and dams.
Odour control
An oxygen-rich, oxidising environment suppresses the anaerobic reactions that generate hydrogen-sulphide odour around sewage ponds and works.
Why we don't use blowers and coarse diffusers.
| NBT nanobubble | Coarse-bubble aeration | |
|---|---|---|
| Bubble size | < 200 nm | 2–5 mm |
| Buoyancy | Near-neutral — stays suspended | Rises and bursts in seconds |
| Oxygen transfer | Very high — reaches supersaturation | Low — much gas lost to surface |
| Redox / ORP | Raised — oxidising, disinfecting | Little effect |
| Algae & odour | Suppresses BGA, oxidises H₂S | Limited |
| Energy & power | Low — solar-viable | High — grid blowers |
| Footprint | Retrofit into existing ponds | Tanks / mechanical plant |
Floated on the water, powered by the sun.
NBT generators are deployed on floating platforms with their own photovoltaic array and suspended battery pack — an arrangement we call NanoHaven. There's no grid connection and no exposure to load-shedding: the diffuser sits below the platform and injects nanobubbles directly into the water it treats. The same platform can carry vegetated islands, which is exactly what the NBT + Vetipont™ combination does.
Next: NBT + Vetipont™ →
See how nanobubble aeration and vetiver floating treatment wetlands combine into a single, self-reinforcing passive treatment system.
Have a pond or dam that needs oxygen?
Tell us the volume, flow and water quality and we'll model the nanobubble dosing and expected treatment outcome for your site.