The solids are move by filter and settling tanks.Next the liquid is oxygenated to remove bacteria.At around 90percent is pure enough to be used again or make its way into the sea
( Only if it goes into a main sewer ). First, the solids are removed by filters and settling tanks. Then, the liquid is oxygenated to remove bacteria. When it is around 90% pure (pure enough to drink), it is discharged into the local water course to be used again or else it would make its way into the sea.