Why do we need to remove extra phosphorus from wastewater?


Eutrophication is caused by excessive nutrient load

Eutrophication is the most serious environmental problem faced by the Baltic Sea. It is caused by excessive phosphorus and nutrient loads to the Sea. To stop eutrophication and save the Baltic Sea, we need to significantly cut the nutrient load of the Sea.

The masses of blue-green algae that occur every summer are the most visible symptom of eutrophication

Phosphorus removal is the most effective way to reduce the growth of blue-green algae. Blue-green algae are able to fixate the nitrogen they need from air, so for them, the amounts of phosphorus in the water are decisive.

One person produces around two grams of phosphorus in a day

One person produces around two grams of phosphorus per day – to be flushed down the toilet. This amount is sufficient for growing almost one kilo of blue-green algae. Removing phosphorus from wastewaters is a fast and cost-efficien way of reducing phosphorus to the Sea – thereby curbing the growth of blue-green algae.

To save the Sea, we need to work across the entire catchment area

The Sea does not recognize state borders. It is therefore critical to work in the entire catchment area of the Baltic Sea. In Clean Baltic Sea projects, we speed up the projects that are most critical for the Baltic Sea – and also catalyst co-operation between public and private sectors in a number of countries.