Long-term performance of a representative integrated constructed wetland treating farmyard runoff
Mustafa, A, Scholz, M, Harrington, R and Carroll, P 2009, 'Long-term performance of a representative integrated constructed wetland treating farmyard runoff' , Ecological Engineering, 35 (5) , pp. 779-790.
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The integrated constructed wetland (ICW) system studied in this research paper was constructed as part of a series of 15 wetland systems to improve the water quality of an entire catchment area (Annestown Stream watershed, Ireland) dominated by farming activities. The studied ICW comprised four cells and was used for the treatment of farmyard dirty water from a dairy farm near Dunhill (Ireland). The performance of this system was evaluated through physical, chemical and microbiological parameters collected for 7 years. The removal efficiencies were relatively good if compared to the international literature: biochemical oxygen demand (97.6%), chemical oxygen demand (94.9%), suspended solids (93.7%), ammonia-nitrogen (99%), nitrate-nitrogen (74%) and molybdate reactive phosphorus (91.8%).Amolecular microbiological analysis of sediment samples collected fromthe site indicated that the number of denitrifying bacteria detected in the ICW system was higher than the number of ammonia-oxidizing bacteria. The monitored nutrient concentrations in groundwater and surface waters indicated that this ICW system did not pollute the receiving waters. The results showed that ICW are likely to be efficient in removing nutrients from farmyard runoff rich in nitrogen and phosphorus.
|Themes:||Subjects outside of the University Themes|
|Schools:||Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Civil Engineering Research Centre|
|Journal or Publication Title:||Ecological Engineering|
|Depositing User:||Users 29196 not found.|
|Date Deposited:||30 Jan 2012 12:10|
|Last Modified:||20 Aug 2013 17:21|
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