Applications in environment and agriculture

Nanobubbles (NB) are loosely defined in scientific literature dating before 2018 describing gas-filled bubbles that have a diameter less than 1.0 μm. Nanobubbles or its equivalent term, ultrafine bubbles (UFB), are now described as bubbles with a diameter in the range of 100-200 nm. These bubbles are often produced using hydrodynamic cavitation in a bulk liquid. Nanobubbles have several unique properties such as its high oxygen solubility, stability of oxygen nanobubbles in the water for weeks, and its ability to produce reactive oxygen species (ROS). Studies in various fields have successfully confirmed beneficial effects of nanobubbles including enhanced plant growth, seed germination, microbial growth and removal of diverse micropollutants among others.  Many of these beneficial effects are anecdotal or mere observational. Thus, our research team is conducting scientific studies to explore the positive effects of nanobubbles in  wastewater treatment, agriculture and aquaponics”