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The process

How water is purified

Clean water does not arrive safe by chance. Raw water drawn from a river, lake, dam, or reservoir is turned into clean, healthy water through a series of carefully designed steps — this is that complete journey, from the source to your home.

Clear, clean water over smooth pebbles
Clear, clean water — what every stage is working toward.
Introduction

Why water treatment matters

The water we drink is made safe — purified from a natural source through steps that remove odor, suspended solids, and harmful bacteria. A water treatment plant takes untreated water and, stage by stage, transforms it into water that is clear, clean, and safe enough to drink.

Safe by design

Multiple barriers remove particles, odor, and bacteria at every stage.

Built for communities

Scaled for households, schools, hospitals, and whole villages.

Proven engineering

Korean-manufactured technology with international field experience.

The process · 9 stages

The complete journey — from the dam to your home

Every drop of drinking water travels through the same careful sequence. Here is each step, in order.

Isometric diagram of the 9-stage water treatment journey — dam, intake, coagulation, sedimentation, filtration, disinfection, clear water tank, storage, and households
The complete journey of water — from the dam to your home.
  1. 1
    Dam · Water Source

    Where the water is collected

    The reservoir where raw water is stored — a river, lake, dam, or reservoir. This is the "water warehouse," the raw-material store for everything that follows.

  2. 2
    Intake · Pumping Station

    The journey begins

    Located near the source, the intake draws in raw water and sends it to the treatment center — while monitoring water quality around the clock for harmful substances.

  3. 3
    Coagulation · Chemical Tank

    Fine particles are bound together

    A precise dose of coagulant is mixed into the water. It binds fine, cloudy particles (colloids) into larger clusters that can later be removed.

  4. 4
    Flocculation · Sedimentation

    The clumps settle out

    The water is stirred slowly so particles cling into heavy clumps called "floc." These flocs settle to the bottom, and the clear water above is drawn off.

  5. 5
    Filtration

    Down to the smallest particle

    The settled water passes through layers of sand and gravel, removing even the smallest remaining particles. After filtration, the water is clear.

  6. 6
    Disinfection

    Made truly hygienic

    Even clear, filtered water can still carry bacteria. A small, carefully controlled amount of chlorine is added — the final step that makes it safe.

  7. 7
    Clear Water Tank

    Finished water is held

    The disinfected water is held here temporarily. From this tank, powerful pumps send the finished water onward to storage, homes, and businesses.

  8. 8
    Water Supply · Storage

    Stored, ready to distribute

    An intermediate reservoir, usually on the highest ground nearby, stores treated water before distribution — and keeps a reserve in case production is interrupted.

  9. 9
    Households

    Clean water reaches home

    Through the distribution network, clean and safe water finally reaches every home — the destination of the entire process.

The compact CEYKO / DS Environmental Plant skid-type water treatment unit
The compact CEYKO / DS treatment unit — see it running at our showroom.
Our system

The CEYKO / DS treatment unit

The same nine-stage principle, built into a compact unit. The demonstration model runs at 2 m³ / 8 hr as a non-powered reaction system — and the real plant is designed to your site, from a village supply up to 50 or 100 tonnes.

Why CEYKO

Proven technology, real results

CEYKO International supplies systems built by DS Environmental Plant — fitted to real conditions: compact, simple to operate, and reliable even where power is limited.

Korean manufacturing

Designed and built by DS Environmental Plant, with certified quality and environmental management systems.

International experience

Proven with overseas water and wastewater treatment installations, including field projects in Vietnam.

Non-powered reaction

A core reaction stage that needs no electricity — ideal for regions with an unstable power supply.

Modular & scalable

Start with a basic unit and expand in stages — matched to each community's budget and needs.

Skid-type water treatment unit manufactured in Korea by DS Environmental Plant
Skid-type unit — manufactured in Korea
Wastewater treatment plant installed in Vietnam by DS Environmental Plant
Overseas installation — Vietnam
A family enjoying clean, safe drinking water at home
Clean water, in daily use

Bring this system to your community

The same process can be built for your village, school, or town. Visit our showroom to see it work, and let us plan the right plant for you.