Bureau Waardenburg
Varkensmarkt 9
4101 CK Culemborg
the Netherlands
T: +31 (0) 345 512710
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Mosselkweek waterzuivering
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Filtering by zebra mussels for water purification

Mussel block used as a filter is deployed in a lake in the south of the Netherlands

We have developed a method to improve water quality using zebra mussels as a biological filter. This method is being tested in the south of the Netherlands on behalf of Waterschap Brabantse Delta.

How zebra mussels filter

Zebra mussels (Dreissena spp.) filter water in order to feed. They remove algae and small particles, which are deposited in excretion. In sufficient numbers they can prevent algal blooms and reduce turbidity. This improves the growing conditions for waterplants and the ecological water quality.

Patented mussels

Zebra mussels are not present in all waterways, some lack the hard substrate needed for this species. We cultivate mussels on an artificial substrate meaning that the mussels can be deployed on these blocks as biological filters. Waterbodies with poor water quality can be improved through the use of biological filters. The method described here has been developed and patented by Bureau Waardenburg.

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