FUST Lab’s ultrasonic-based advanced oxidation process
provides a safer and more sustainable water treatment solution,
realizing both environmental protection and energy efficiency.
Water Treatment Application Data
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Ultrasonic Microbubble
Ultrasonic Microbubble Advanced Oxidation Process
PFAS Decomposition (Non-incineration, No Ozone / H₂O₂)
PFAS (Per- and Polyfluoroalkyl Substances) are representative environmental contaminants known as “forever chemicals” due to their high stability and extreme resistance to degradation.
Even at low concentrations, PFAS can cause endocrine disruption, carcinogenicity, and reproductive toxicity.
The United States, Europe, and Japan have implemented strict regulations, and further tightening of industrial discharge standards is expected.

Currently, PFAS lack effective destruction technologies and are typically removed by filtration followed by incineration, resulting in high carbon emissions, air pollution, and significant costs.

Unlike conventional advanced oxidation processes (AOP), CAVITOX does not use ozone or hydrogen peroxide. Instead, it utilizes focused ultrasonic technology to break the molecular chains of toxic substances such as PFAS, converting organic compounds into inorganic forms without incineration or secondary treatment, providing an environmentally friendly solution.
Complete degradation to non-detectable levels confirmed for over 11 PFAS species of varying chain lengths in actual wastewater
Sample Cavitox Results per toxin [ppb]
PFOA br_PFOS L-PFOS PFBA PFP eA PFDA PFHpA PFHxA PFOA PFOA PFOA PFOA
PFAS-detected Groundwater A Before treatment 2.07 0.104 - 1.86 1.09 0.127 0.449 1.24 0.130 - 0.251 0.045
After treatment N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D.
PFAS-detected Groundwater B Before treatment 0.592 0.155 - 0.782 0.390 - 0.202 0.515 - 0.097 0.325 0.045
After treatment N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D.
PFAS-detected Tap Water C Before treatment 10.4 0.336 0.325 4.32 1.13 0.300 1.72 2.16 1.00 0.184 0.606 -
After treatment N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D. N.D.
PFAS Group Degradation
Focused ultrasonic energy cleaves strong C–F bonds and sequentially shortens long carbon chains of highly toxic chemicals, which inhibit biodegradation, enabling effective decomposition.
Target Substance Molecular Formula Before Treatment
[ppb]
After Treatment
[ppb]
Reduction Rate
[%]
PFBA C₃F₇COOH 1,761.7 0.033 99.99
PFPeA C₄F₉COOH 1,538 0.052 99.99
PFHxA C₅F₁₁COOH 971.7 0.124 99.99
PFOA C₇F₁₅COOH 668.9 0.192 99.99
PFNA C₈F₁₇COOH 391 N.D. 99.99
PFUnDA C₁₀F₂₁COOH 603.7 2.092 99.99
PFDoDA C₁₁F₂₃COOH 697.4 17.9 99.99
PFTA C₁₄F₂₉COOH 712.7 38.92 99.99
6:2 FTS C₈H₈F₁₃O₃S 1,158.3 0.200 99.99
8:2 FTS C₁₀H₁₀F₁₇O₃S 1,820.9 0.814 99.99
Short Chain PFAS Degradation
Short-chain PFAS are particularly difficult to treat and pose persistent risks to human health and the environment.
Even short-chain PFAS compounds with fewer than four carbon atoms can be effectively degraded.
Mineralization
CO₂ capture before treatment: 0–400 ppm
CO₂ capture after treatment: 1,735 ppm
Detection of F⁻ after treatment confirms cleavage of C–F bonds through the ultrasonic process
Zebrafish Embryo Toxicity Assessment of PFAS-Treated Water
Toxicity evaluation conducted on CAVITOX-treated water containing endocrine-disrupting PFAS
Zebrafish embryo survival rate increased by 2–4 times
Lethal Dosage (LC50) Result