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Core Technology

Expected Effects of Ultrasound-Enhanced Cold Plasma System

Utilizing reactive oxygen and nitrogen species (RONS) generated by underwater plasma discharge, the process achieves over 99% sterilization efficiency through recirculation.

Production of nitrate ions [NO₃⁻], the final absorbable form of nitrogen essential for plant growth, from water and air.

Application of ultraviolet (UV) light and ultrasound for cell wall disruption of waste biomass (e.g., spent coffee grounds), enabling extraction of nutrients for plant cultivation.
*RONS: Reactive Oxygen and Nitrogen Species

Cold Plasma

The formation of nitrogen-oxygen reactive species with UV radiation and shockwave-induced microbial cell wall rupture/ DNA denaturation

Low-temperature Plasma Technology

Atomic components maintain temperature imbalance, operating below 120°C
→ Expansion of application areas (Thermal plasma: 10,000°C)

Reactive Species

Ultraviolet

Shockwave

Simultaneous Utilization of Plasma-Generated Reactive Species, UV, and Shockwaves

Electrode discharge-induced ionization of water and air molecules
→ Reactive species-Induced rapid oxidation & permeabilization

Ultraviolet Emission and Acoustic Shockwaves during Plasma Formation
→ Cell membrane disruption for sterilization and component extraction

Cavitation

The formation and collapse of high-pressure bubbles destroy cell walls and extract bioactive compounds.

Combined use of ultrasonic cavitation and pressure-drop nozzle–induced bubble cavitation.

Pressure drop from higher in-channel flow promotes plasma-activated ion influx → Higher underwater active ion levels → Enhanced sterilization

Ultrasonic-assisted decomposition of plasma-activated bubbles under pressure drop → Fragmentation of grown bubbles prolongs underwater lifetime → Boosts sterilization and dissolved oxygen

Enhancing underwater microbubble concentration using ultrasound and high-pressure nozzles → Maximized waste resource recovery via multi-bubble cavitation (cell wall rupture)