title: A combined system of lagoon and constructed wetland for an effective wastewater treatment.
abstract: Lagoon systems are a common and effective method to purify communal sewage in rural areas. Low costs and high purification rates are some of their advantages. But mostly algae blooms in the lagoon cause a secondary pollution of the following stream. In order to tackle this problem, several tests have been carried out combining both lagoon and filtering system. This paper describes a 3 year study on the combination of a lagoon and a planted filter dam in one basin. This system has shown a high and continuous retention rate of algae, pH buffering and a further reduction of general sewage parameters. Furthermore, the effects of varying weather conditions (dry, wet) and seasonal aspects on this combined system will be presented.
authors.affiliation: Technische Universität München, Limnologische Station, Hofmark 1-3, 82393 Iffeldorf, Germany.
authors.forename: Christian R
authors.initials: CR
authors.lastname: Steinmann
authors.forename: Sabine
authors.initials: S
authors.lastname: Weinhart
authors.forename: Arnulf
authors.initials: A
authors.lastname: Melzer
mesh_terms: D017753:Ecosystem; D005068:Eutrophication; D005374:Filtration; D006863:Hydrogen-Ion Concentration; D012621:Seasons; D012722:Sewage; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods
chemical_list: D012722:Sewage