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Eco Action

Advanced oxidation process for taste and odour removal

© stock.adobe.com/au/Vasily Merkushev

K

-Water owns and operates the Sung-Nam Water

Ozone is produced by three Wedeco PDO 1000 ozone

Treatment Plant (WTP) in Sung-Nam Metro-City,

generators, with a total capacity of 51 kg ozone per hour,

providing drinking water to Sung-Nam, Yong-

fed with liquid oxygen. The ozone feed is combined with

in and Suwon City. It serves over 3 million

hydrogen peroxide to form hydroxyl radicals — highly

people and a beverage industry filling over 45,000 bottles

effective oxidising agents and the key to T&O destruction.

of drinking water per day.

Xylem also provided the underground hydrogen peroxide

Seasonal algal blooms cause taste and odour, leading

storage and the delivery system that efficiently mixes the

to complaints

ozone and hydrogen peroxide via two DN 1000 diameter

Seasonal algal blooms in the Han-River, the Sung-Nam

ozone injection lines. Following injection, the water flows

WTP water source, produce elevated levels of taste and

through two separate concrete contact tanks for reaction

odour (T&O) compounds like geosmin and 2-MIB. These

and degassing.

T&O compounds are difficult to remove and can only be

Taste and odour complaints eliminated

eliminated through high-strength oxidation.

The reliable and efficient Wedeco ozone generating technology,

Difficult T&O compounds require advanced solutions

as well as the outstanding engineering work done by the

To assure the delivery of high-quality water, South Korea

Xylem team, enabled K-Water to supply high-quality water

invested over US$70 billion to build additional advanced

to its customers, regardless of the season. Highly efficient

water treatment facilities utilising advanced oxidation

ozone generation and mixing reduce operational expenditures.

processes (AOPs) in combination with activated carbon

The Wedeco MiPro eco3 AOP system completely removes

filtration. An AOP system, combining ozone and hydrogen

taste and odour causing compounds, eliminating customer

peroxide, would effectively remove these compounds

complaints and delivering dependable quality.

and other contaminants of emerging concern, delivering dependable, high-quality water to residential and industrial

End user:

K-Water

customers.

Flow rate:

34,390 m³/h

Ozone dose:

2 g/m³

H2O2 dose:

0.5 ppm

2-MIB removal:

0.5 LOG

To remove T&O compounds at Sung-Nam WTP, Xylem provided a complete AOP system. K-Water chose Wedeco because the brand offered reliable ozone generating technology, experience in engineering work and efficient mixing technology for operational savings. The Wedeco MiPro eco3 system oxidises taste and odour compounds, destroying them and other organic contaminants.

30 Sustainability Matters - Apr/May 2017

Xylem www.xylem.com

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Sustainability Matters Apr/May 2017  

Sustainability Matters is a bi-monthly magazine showcasing the latest products, technology and sustainable solutions for industry, governmen...

Sustainability Matters Apr/May 2017  

Sustainability Matters is a bi-monthly magazine showcasing the latest products, technology and sustainable solutions for industry, governmen...