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A treatment wetland was constructed as part of a waste management system for dairy parlour waters and the performance of the wetland in reducing organic matter and nutrients monitored for a two-year period. The wetland was designed for a herd size of 11 with a detention time of approximately 10-14 days. Hydraulic loads to the wetland averaged 25 mm/day, although there were wide fluctuations due to rainfall and water use within the dairy. Average mass loadings to the wetland were 5.6 g/m2/d for Biochemical Oxygen Demand, 2.6 g/m2/d for Organic Nitrogen, 3.2 g/m2/d for Ammonia and 1.5 g/m2/d for Total Phosphorus. Monitoring results from the system indicated that significant BOD reductions were achieved, while Nitrogen and Phosphorus removals were variable but smaller. Calculated mean monthly pollutant reductions due to the treatment wetland were 61% for BOD, 43% for Organic Nitrogen, 26% for NH3 and 28% for TP. The wetland received high hydraulic and pollutant loads and appeared to act as a sink for the nutrients which were removed. At this scale it did not appear to be suitable as a treatment option for significantly reducing nutrients in this type of agricultural waste.

Titel:	Suitability of a treatment wetland for dairy wastewaters
Autor/in / Beteiligte Person:	GEARY, P. M ; MOORE, J. A
Link:	View record from PASCAL Archive
Quelle:	Wetland systems for water pollution control (Águas de São Pedro, 27 September - 2 October 1998)Water science and technology; (1999) S. 179-185
Veröffentlichung:	Oxford: Pergamon Press, 1999
Medientyp:	Konferenz
Umfang:	print, 13 ref
ISSN:	0273-1223 (print)
Schlagwort:	Ecology ethology Écologie, éthologie Civil engineering Génie civil Geology Géologie Pollution Sciences exactes et technologie Exact sciences and technology Sciences appliquees Applied sciences Traitement et pollution des eaux Water treatment and pollution Eaux usées Wastewaters Eaux usées de toute autre origine Other wastewaters Sciences biologiques et medicales Biological and medical sciences Sciences biologiques fondamentales et appliquees. Psychologie Fundamental and applied biological sciences. Psychology Biotechnologie Biotechnology Applications et implications industrielles. Aspects économiques Industrial applications and implications. Economical aspects Environnement et pollution Environment and pollution Epuration biologique des eaux Biological treatment of waters Artiodactyla Mammalia Ungulata Vertebrata Azote Nitrogen Nitrógeno Bovin laitier Dairy cattle Ganado de leche DBO Biological oxygen demand Elevage Rearing Cría Epuration biologique Biological purification Depuración biológica Epuration eau usée Waste water purification Depuración aguas servidas Milieu artificiel Artificial medium Medio artificial Phosphore Phosphorus Fósforo Zone humide Wetland Zona húmeda
Sonstiges:	Nachgewiesen in: PASCAL Archive Sprachen: English Original Material: INIST-CNRS Document Type: Conference Paper File Description: text Language: English Author Affiliations: Department of Geography & Environmental Science, The University of Newcastle, Callaghan, 2308, NSW, Australia ; Department of Bioresource Engineering, Oregon State University, Corvallis, OR 97331-3906, United States Rights: Copyright 1999 INIST-CNRS ; CC BY 4.0 ; Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS Notes: Biotechnology ; Pollution

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Suitability of a treatment wetland for dairy wastewaters