Nanofiltration plants EUROWATER

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Nanofiltration plants EUROWATER

Nanofiltration is often used for treatment of drinking water and industrial process water.

Drinking water

  • Reduction of sulphate, chloride, and fluoride
  • Partial softening without use of regeneration chemicals

Industrial process water

Partial softening and reduction of colour and humus from surface water in e.g. the iron and metal industry and paper mills.

Nanofiltration or reverse osmosis?

Reverse osmosis is typically used for demineralization of water, since this filtration method covers the widest field of application (see the diagram). Nanofiltration, on the other hand, is applied in order to reduce unwanted components in full or in part. Unlike reverse osmosis, nanofiltration applies a lower pressure, typically under seven bar, resulting in lower energy consumption compared with a reverse osmosis plant with the same productivity.

You must also choose a nanofiltration plant over a reverse osmosis plant if you want a certain hardness, because a potential demineralization will make the water aggressive and lead to problems with corrosion in the supply network. 

Designed for your needs

EUROWATER offers a broad product range of fully automatic nanofiltration units – based on our well-known modular standard system, which makes it possible for us to combine an optimal plant for your needs.  

The technique behind

Nanofiltration is a membrane technology, which in its mode of operation and construction is very similar to reverse osmosis. A nanofiltration membrane primarily restrains divalent ions and larger molecules. When it comes to the filtration process, a nanofiltration unit is placed between reverse osmosis and ultrafiltration – see the diagram.

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