RietLand installed two helophyte filters at the Prinsentuincollege in Oudenbosch. One of them is used to purify the toilet water. The other for purification of the pond water. An educational project is linked to the helophyte filters in which the students of...

The waste water from 40 homes is gravity discharged into a separate sewer system (cascade sewage system) and then pre-treated in a large septic tank. The overflow of the septic tank opens into a 25 m³ pump cellar with two pumps. From here...