If I was in charge of this project would seriously consider as a goal to clean the waters enough to allow the survival and massive reintroduction of Painter's mussel in the city.
Small native species strongly linked with the history of the country. Its direct link with the Flemish painters school, and with Brussels old kitchen would have a strong touristic appeal.
Would have also a educational value creating a sense of proud among citizens, and a big environmental value as umbrella species for introduction of nature in the city and other endangered species of native mussels.
All that they need is to assure to keep a minimum constant quality in the water and suddenly you have an army of small long-lived water plants generating crystalline water for free as result.
A start could be to culture it in temporary flat cages that could be moved to other places in winter or if needed. Could be seen as a live water analysis system that will trigger a fast alarm in the case of toxic waste being dumped to the streams. You could put 'live filter cages' with a lot of painter mussels and maybe a few number of rarer species here and there among them and place it as necessary. Seems feasible.
Small native species strongly linked with the history of the country. Its direct link with the Flemish painters school, and with Brussels old kitchen would have a strong touristic appeal.
Would have also a educational value creating a sense of proud among citizens, and a big environmental value as umbrella species for introduction of nature in the city and other endangered species of native mussels.
All that they need is to assure to keep a minimum constant quality in the water and suddenly you have an army of small long-lived water plants generating crystalline water for free as result.
A start could be to culture it in temporary flat cages that could be moved to other places in winter or if needed. Could be seen as a live water analysis system that will trigger a fast alarm in the case of toxic waste being dumped to the streams. You could put 'live filter cages' with a lot of painter mussels and maybe a few number of rarer species here and there among them and place it as necessary. Seems feasible.