Andreas Hedrén is responsible for marine environment at Växjö Municipality. He has worked to improve the water quality in Växjö's lakes. Now the trip has come to North Bergundasjön, which is the recepient for the wastewater from the Swedish Wastewater Treatment Plant.
That water still contains fertilizers and in order for Lake Bergundas to recover, emissions must cease. The solution is to build a wetland where the water can be led - a solution that Andreas Hedrén is currently working on.
- We cannot fully restore Northern Bergunda Lake if we do not do this. If we release the wastewater to the wetland instead of to the North Bergundas lake, we will have a positive effect on the entire water area.
Helps the sea grow againThe water eventually comes out into the sea and there, among other things, phosphorus contributes to eutrophication. And this means in the long run Andreas will be better when the emissions of these substances in Växjö decrease.
- This is the most powerful contribution we can imagine when it comes to Växjö's contribution of fertilizers to the entire lake system and the Baltic Sea, says Andreas Hedrén.
The approximately 70 hectares of wetland, Andreas Hedrén believes, will be ready in no more than five years. The price tag in today's monetary value is estimated at around SEK 50 million.