- Substitution for condensation and precipitation at the time of purifying water
(Wonju Water Purification Center: 200,000 ton/day)
: Removing light waterweeds or relatively big pathogenic microorganism like cliptosporidium
- Ilsan Lake Park, Jamsil Seokchon Lake, and Pond in the golf course
- Dams and lakes

(2) Sewage and Wastewater Treatment
- Treatment of various kinds of wastewater (livestock and excretion wastewater and other wastewater treatment center for paper making and marine product processing)

(3) Applied Technology
- Ozone treatment and bactericidal technology, AOP