9+ years of field operation · Korea's only seawater purification track record

The Most Eco-Friendly Solution
That Brings Water Back to Life

Our fusion of ultrafine bubbles (50–250nm) and underwater plasma purifies both the water column and the sediment layer — no chemicals, proven by third-party data.

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97%Algae (Chl-a) reduction — verified by K-water, Daecheong Lake
20+Public institutions & sites nationwide
9+ yrsContinuous operation at major lakes & reservoirs
Korea's OnlySeawater purification record (Jeju Ojo-ri · Songdo)
Solutions

Three Industrial Applications

One source nanobubble technology, engineered for three field requirements.

Field Plates

The field keeps being measured

Not laboratory simulations — photographs and measurements from sites currently in operation.

§ FIG · 01Songdo Central Park, Incheon
Songdo Central Park, IncheonHYDROSIQ · SEAWATER · OPERATINGAlgae 90%↓ · only Grade-I WQI (Incheon Health & Env. Research Inst., Nov 2023)
§ FIG · 02Ojo-ri, Seongsan, Jeju
Ojo-ri, Seongsan, JejuHYDROSIQ · COASTAL · SINCE 2021.09Sea lettuce removed · Provincial Marine Environment Grand Prize
§ FIG · 03Geobukseon Park, Yeosu
Geobukseon Park, YeosuHYDROSIQ · LAKE · 2025Chl-a 96%↓ (938.8→33.2mg/m³) · 3 months after install
§ FIG · 04Floating unit on inflow stream
Floating unit on inflow streamEQUIPMENT · FIELD INSTALL5HP per unit · configured by water area
§ FIG · 05Remote monitoring HMI
Remote monitoring HMIOPERATION · UNMANNEDReal-time water quality monitoring · auto control panel
§ FIG · 06Incheon Grand Park Lake
Incheon Grand Park LakeHYDROSIQ · RESERVOIR → LAKEAfter restoration (own photography)

The proof is measured.

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Water Is Our Life and Our Future

HWANGSAN breathes life back into water. From site diagnosis to system design — talk to us.

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