Wastewater treatment plant at sunset

Magnesium for phosphate recovery

The past few years there has been increasing attention for phosphate. This is partly because it is a finite raw material, which is necessary for animals, plants and humans. For future generations, it is important to recover phosphate, so that sufficient phosphate remains available for future generations. What is phosphate, and what does Nedmag have to do with it?

Phosphate and its recovery

Phosphates are mined from phosphate rock and are used, among other things, to make fertilizers. Crops need phosphate and intensive agriculture can locally cause soil depletion. Minerals such as phosphates must then be added. This often takes the form of fertilizer, but can also be done by spreading manure on the land. Unfortunately, some phosphate is also lost again because of leaching.

Because of the importance of phosphate, there is an increased awareness that recovered phosphates should be a useful alternative for a sustainable future. This is possible since phosphate can be recovered in various ways, for example from sewage sludge in wastewater treatment plants. In recent years various technologies have been developed to be able to separate phosphate and make it usable again. Magnesium plays an important role in the recovery of phosphate as struvite.

Magnesium and phosphates

Magnesium binds to phosphates. This makes it possible to separate phosphates from a phosphate-rich waste stream, such as waste water, sludge or manure. Nedmag has been supplying magnesium for these applications since the first developments. In addition to supplying magnesium, product knowledge is also shared and technical support is provided.

To get an impression of Nedmag with an explanation of the product magnesium hydroxide, watch the video below:


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