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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Measured results, organized by domain.
Core Technology
50–250 nm bubbles deliver oxygen to the sediment layer; underwater plasma breaks algae down directly. Verified by K-water electron microscopy.
02Products
Floating ultrafine-bubble units and HYDROS-AI, the AI-predictive autonomous water treatment platform.
03Proof & Data
Performance data verified through joint research with the Seoul Water Institute, K-water, KRC and the Ministry of Oceans and Fisheries.
04Case Studies
Before/after water restoration records from lakes, coastal waters and rivers across 20 operating sites.
05About
Patents registered in Korea, the US, EU, China, Japan, India and Vietnam. PPS Innovative Product designation. Official supplier for G20 and APEC.
The field keeps being measured
Not laboratory simulations — photographs and measurements from sites currently in operation.






The proof is measured.
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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