title: Experimental results on constructed wetland pilot system.
abstract: Research into a constructed wetland for wastewater treatment using M.H.E.A. (Hierarchical Mosaic of Artificial Ecosystems) pilot system was carried out over a vegetative period in 8 different flow and vegetable composition series. The system consisted of a free water pond as a first step working as primary treatment followed by a zone with Typha sp. and surface flow and finally a woody zone with a subsurface flow and planted with ligneous species (Salixsp., Populus sp., Fraxinus sp. and Alnus sp.). Removal efficiency in the study reflects an optimal result: 80-99% total suspended matter removal, 82-98% organic matter removal, 70-98% nutrients removal and up to 99.9% faecal bacterial disinfecting. Effluent characteristics were in accordance with European Union legislation criteria for wastewater treatment systems.
authors.affiliation: Area de Ecología, Universidad de León, Spain. deggag@unileon.es
authors.forename: J M
authors.initials: JM
authors.lastname: González
authors.forename: G
authors.initials: G
authors.lastname: Ansola
authors.forename: E
authors.initials: E
authors.lastname: Luis
mesh_terms: D017753:Ecosystem; D004755:Enterobacteriaceae; D009930:Organic Chemicals; D010865:Pilot Projects; D006109:Poaceae; D011157:Population Dynamics; D012722:Sewage; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods*
chemical_list: D009930:Organic Chemicals; D012722:Sewage