ESA Operating Principle
Innovative oxygen transfer system using water-jet technology
With a remarkable 68.6% oxygen transfer efficiency,
we are transforming
the paradigm of water treatment facilities
Innovative oxygen transfer system using water-jet technology
Differentiated advantages over conventional diffusers
Micro-bubbles generated by the water-jet method maximize the contact area, achieving a high oxygen transfer efficiency of 68.6%.
With 30%+ energy cost savings and minimized maintenance costs, operational expenses are significantly reduced.
With no clogging issues and semi-permanent lifespan, maintenance intervals are long and management is convenient.
Compact design saves over 50% of installation space compared to conventional systems.
Robust structure and proven technology enable stable operation, applicable across diverse environments.
Improved energy efficiency reduces carbon emissions and enables sustainable water treatment.
Specially designed nozzles create perfectly uniform 1 mm micro-bubbles
NET(New Excellent Technology) No. 1414 — Verified technology
Protected by registered patents — unrivaled technology
Easy installation and actual operation
Installed on top of the tank, generating
micro-bubbles using water-jet technology
Installed at the bottom of the tank, generating
micro-bubbles using water-jet technology
Micro-bubble generation verified
Top-mounted ESA System
Easy installation and replacement
through the aerator flange connection
Technology difference at a glance
Bottom-mounted conventional system
Top-mounted ESA system
Media coverage and official certifications
recognizing ESA innovation
Diffuser manufacturing technology with improved OTE using water-jet principle
Korea Testing Certification Institute
Officially certified 68.6% OTE
Applied to biological treatment processes
across food, dyeing, paper, chemical,
and livestock industries
E&Company Leachate Treatment Facility, 2023
SPC Samlip Chungju Production Center WWTP, 2025
Gyeongju Dongsan Sewage Treatment Plant, 2025
ESA applicable across diverse water treatment fields
