title: [Microbiological and chemical studies of a water treatment plant with a wastewater pond containing plants during the winter of 1983-1984].
abstract: First results of investigations in a small sewage plant (500 inhabitants) are presented. It has a special construction, since in addition to a trickling filter it is equipped with a waste water lagoon planted with marsh plants as a second biological treatment step. During the first winter after construction the BOD5 and the fecal indicator bacteria were reduced by 80% in the whole system. These values are comparable to those expected in conventional secondary treatment plants. The plant nutrients phosphate and ammonia were reduced far less by only 40%. Therefore additional investigations are planned for the next winter to show, whether the further development of plant roots within the pond will induce even higher reduction values.
mesh_terms: D000641:Ammonia / Q000378:metabolism; D004755:Enterobacteriaceae / Q000254:growth & development* / Q000302:isolation & purification; D010100:Oxygen / Q000378:metabolism; D010710:Phosphates / Q000378:metabolism; D010944:Plants; D011891:Rain; D012621:Seasons; D012722:Sewage; D013291:Streptococcus / Q000254:growth & development / Q000302:isolation & purification; D013696:Temperature; D014871:Water Microbiology
chemical_list: D010710:Phosphates; D012722:Sewage; D000641:Ammonia; D010100:Oxygen
vernacular_title: Mikrobiologische und chemische Untersuchungen in einem Klärwerk mit pflanzenbesetztem Abwasserteich im Winter 1983/84.