Nanobubbles: The Invisible Revolution in Bioremediation

What are Nanobubbles?

Nanobubbles are gas bubbles with a diameter smaller than 200 nanometers, thousands of times smaller than a grain of sand. Thanks to their size, they present unique properties: they remain suspended in liquids for weeks without collapsing, they have a negative surface charge that allows them to interact with contaminants, and when they burst they release localized energy capable of oxidizing complex organic matter.

At BioSoluciones we integrate nanobubble generators into our water treatment systems, combined with selected microbial consortia. The result is a synergistic process where the high-availability dissolved oxygen enhances the activity of bioremediating microorganisms.

Applications in Bioremediation

• Water body eutrophication: We restore lakes, reservoirs, and rivers where excess nutrients (nitrogen and phosphorus) have caused cyanobacteria proliferation and loss of dissolved oxygen.
• Industrial wastewater: We treat effluents with high organic load, heavy metals, or recalcitrant compounds that conventional systems cannot handle.
• Aquaculture: We improve oxygenation in fish ponds without the need for costly mechanical aerators.

Advantages Over Conventional Technologies

1. Greater oxygen transfer: A nanobubble transfers up to 6 times more oxygen than a conventional bubble of the same volume.
2. Lower energy consumption: The generators work at low pressure and high efficiency.
3. No toxic byproducts: Unlike ozonation or chlorination, nanobubbles do not generate trihalomethanes or other unwanted compounds.
4. Biological compatibility: They do not affect aquatic fauna or beneficial microorganisms.

Case Study: Reservoir Recovery

In one of our recent projects, we applied a combined nanobubble and bioremediation protocol to a reservoir with six years of progressive eutrophication. After 14 weeks of continuous treatment, chlorophyll-a concentration was reduced by 71%, biochemical oxygen demand fell to acceptable levels, and the return of fish and macroinvertebrate species that had disappeared was recorded.

A Tool, Not a Magic Solution

Nanobubbles are a powerful tool, but their true potential is unlocked when combined with a precise diagnosis of the system to be treated and a well-selected microbial consortium. At BioSoluciones we do not sell generic products: we design solutions tailored to each body of water.