FUST Lab’s ultrasound-based AOP delivers a safer, more sustainable
water treatment solution,
advancing environmental protection and energy efficiency at the same time.
Water Treatment Applications
Changing the world through technology,
FUST Lab.
Ultrasonic Microbubble
Ultrasonic Microbubble Advanced Oxidation Process
PFAS Degradation (Non-incineration, No Ozone/H2O2)
PFAS (Per- and Polyfluoroalkyl Substances) are highly stable, persistent pollutants, often called “Forever Chemicals.”
Even at low levels, they are linked to endocrine disruption, cancer risk, and infertility.
The U.S., Europe, and Japan are tightening regulations, and stricter industrial discharge limits are expected.

Today, PFAS are typically captured with filters and then incinerated because practical destruction technologies are limited. This drives carbon emissions, air pollution, and high costs, increasing demand for alternative destruction methods.

CAVITOX is an eco-friendly solution that differs from conventional AOP by using no ozone or hydrogen peroxide. With focused ultrasound, it cleaves PFAS chains and converts organics into inorganics, without incineration or secondary treatment.
Confirmed and degraded 11+ PFAS species in real wastewater across multiple chain lengths to non-detect levels
Sample Cavitox Results per toxin [ppb]
PFOA br_PFOS L-PFOS PFBA PFP eA PFDA PFHpA PFHxA PFOA PFOA PFOA PFOA
PFAS-positive Groundwater A Before 2.07 0.104 - 1.86 1.09 0.127 0.449 1.24 0.130 - 0.251 0.045
After ND ND ND ND ND ND ND ND ND ND ND ND
PFAS-positive Groundwater B Before 0.592 0.155 - 0.782 0.390 - 0.202 0.515 - 0.097 0.325 0.045
After ND ND ND ND ND ND ND ND ND ND ND ND
PFAS-positive Tap Water C Before 10.4 0.336 0.325 4.32 1.13 0.300 1.72 2.16 1.00 0.184 0.606 -
After ND ND ND ND ND ND ND ND ND ND ND ND
PFAS Group Degradation
Focused ultrasound cleaves strong C–F bonds and progressively cuts long carbon chains in highly toxic chemicals that resist biodegradation, enabling effective destruction.
Short-Chain PFAS Degradation
Short-chain PFAS are harder to treat, yet the process can effectively degrade even short-chain compounds with fewer than four carbon atoms, reducing ongoing impacts on humans and the environment.
Mineralization
CO₂ captured (Before): 0–400 ppm
CO₂ captured (After): 1,735 ppm
F⁻ was detected after treatment, confirming C–F bond cleavage through the ultrasonic process.
Zebrafish Embryo Toxicity Test of PFAS-Treated Water
Toxicity evaluation of CAVITOX-treated water after PFAS removal (endocrine-disrupting compounds)
Zebrafish embryo survival increased by 2–4×
Lethal Dosage (LC50) Result