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Hardness

Projects

The hardness of water

Research shows a clear link between the ‘perceived quality’ of tap water and the perception of water hardness: the softer customers perceive water to be, the higher the quality rating. This project analyses the extent to which…

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Citizen Science and Hardness

What does it mean to involve drinking water customers as researchers for a period of six months? In this citizen science project of KWR and the water company Brabant Water, customers will, for the first time, participate…

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Treating spent IEX regenerant streams

Ion exchange (IEX) is being increasingly used for the removal of organics, for example, for purposes of removing water colour and water hardness. KatIEX is used for removing hardness, and AnIEX for…

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Experts

Wolter Siegers
Scientific researcher
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Wolter Siegers

Scientific researcher

Wolter Siegers is a Generic-B researcher and has worked at KWR for more than 30 years. He worked on research in water treatment for drinking water, wastewater and industry water.…

030-6069726

Wolter.Siegers@kwrwater.nl

06-10946825

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News

News

Industrial and drinking water softening techniques compared

17 October 2017 — On Wednesday afternoon, 27 September, the Industry Water Network Group visited Brabant Water’s production site at Veghel. Following…

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News

Brabant Water customers measure tap water hardness themselves

05 October 2017 — At the beginning of this week almost 100 ‘temporary water researchers’ gathered together in Oss to launch the…

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News

Langenau drinking water production more sustainable thanks to pellet softening

03 October 2017 — Langenau has switched from a precipitation process (cold lime softening) to a crystallisation process (pellet softening) at its…

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Water Sector

More sustainable cooling water systems thanks to softening of makeup water

23 December 2016 — Industry uses open recirculating cooling water systems on a large scale for the dissipation of low-grade, excess heat…

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Article

Recovering salt and humic acids in drinking water production

10 August 2015 — Ion exchange (IEX) is being increasingly used to remove organics from water or to soften water. The ion…

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