Black and grey water from barges : returning clean water to the Seine with a low-tech solution to help river swimming

The aim of the initiative, led by the city of Ile St Denis (Paris), is to improve water quality in the small arm of the Seine, by testing low-tech solutions for treating the water discharged by the barges in the small arm, so that the 90 boats parked there can be equipped (experimentation with different technical solutions, water quality measurements, development of a bathing site).