ABSTRACT

Soil systems can be differentiated by the granular composition of the filter material used. The soil filter plant established at the village of See, described in the following text, can be classified as a soil system with sandy material. Collection and treatment of sewage in areas with low population density is problematic, in general. The planted soil filter at See was designed and constructed in 1984 by G. Dafner for treatment of wastewater from a charity institution. The constructed wetland consists of a planted soil filter with an area of 940 m2 and a mean depth of 0.6 m. A natural loam layer (2 m) seals the soil filter from the karstic bed rock. The soil material is a very ferruginous aeolian sand that is found in the neighborhood of the treatment plant. The investigations conducted thus far demonstrate that the planted soil filter at the village of See is a practicable solution for sewage treatment in rural areas.