Nitrogen removal in an integrated constructed wetland treating domestic wastewater Mawuli Dzakpas... more Nitrogen removal in an integrated constructed wetland treating domestic wastewater Mawuli Dzakpasu a , Oliver Hofmann b , Miklas Scholz c , Rory Harrington d , Siobhan N. Jordan a & Valerie McCarthy a a Centre for Freshwater Studies , Dundalk Institute of Technology , Dundalk, Co. Louth, Ireland b School of the Built Environment , Edinburgh Napier University , Edinburgh, UK c Civil Engineering Research Group, School of Computing, Science and Engineering , University of Salford , Newton Building, Salford, UK d Water and Environment Section , Waterford County Council , Kilmeadan, Co. Waterford, Ireland Published online: 01 Jun 2011.
THE existence of extensive hybridisation between the exotic species, sika deer (Cervus nippon (Ta... more THE existence of extensive hybridisation between the exotic species, sika deer (Cervus nippon (Tamminck)) and the native species, red deer (Cervus e/;phus (L)) is now an established phenonomen (Harrington, 1973)...
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 2011
The nitrogen (N) removal performance of a 3.25 ha Integrated Constructed Wetland (ICW) treating d... more The nitrogen (N) removal performance of a 3.25 ha Integrated Constructed Wetland (ICW) treating domestic wastewater from Glaslough village in County Monaghan, Ireland, was evaluated in this study. The ICW consists of two sludge ponds and five shallow vegetated wetland cells. Influent and effluent concentrations of two N species, namely, ammonia-nitrogen (NH(3)-N) and nitrate-nitrogen (NO(3)-N), which were measured weekly over 2 years, together with hydrology of the ICW provided the basis for this evaluation. The influent wastewater typically contained 40 mg L(-1) NH(3)-N and 5 mg L(-1) NO(3)-N. Concentrations of N in the ICW effluent were typically less than 1.0 mg L(-1) for both species. Overall, a total load of 2802 kg NH(3)-N and 441 kg NO(3)-N was received by the ICW and a removal rate of 98.0 % and 96.9 %, respectively, was recorded. Average areal N loading rate (245 mg m(-2) d(-1) NH(3)-N and 38 mg m(-2) d(-1) NO(3)-N) had a significant linear relationship with areal N removal...
The Red Deer (Cervus elaphus scoticus Lonnberg, 1906) is generally considered to be the only nati... more The Red Deer (Cervus elaphus scoticus Lonnberg, 1906) is generally considered to be the only native hoofed animal that has lived contemporaniously with man in Ireland (Charlesworth, 1963 and O'Rourke, 1970). Ecologically, the red deer appears to be an animal of the transition zone between forest and steppe (Dzieciolowski, 1969) and it was widely distributed in Ireland up to the mid-eighteenth century (Pococke, 1752; Moryson, 1735 and Scouler, 1833). The present distribution of the species in the wild is however confined to three of the thirty two counties of Ireland and only in County Kerry are the deer considered to be indigenous. The other two counties, Wicklow and Donegal, have stock of mainly alien origin...
Nitrogen removal in an integrated constructed wetland treating domestic wastewater Mawuli Dzakpas... more Nitrogen removal in an integrated constructed wetland treating domestic wastewater Mawuli Dzakpasu a , Oliver Hofmann b , Miklas Scholz c , Rory Harrington d , Siobhan N. Jordan a & Valerie McCarthy a a Centre for Freshwater Studies , Dundalk Institute of Technology , Dundalk, Co. Louth, Ireland b School of the Built Environment , Edinburgh Napier University , Edinburgh, UK c Civil Engineering Research Group, School of Computing, Science and Engineering , University of Salford , Newton Building, Salford, UK d Water and Environment Section , Waterford County Council , Kilmeadan, Co. Waterford, Ireland Published online: 01 Jun 2011.
THE existence of extensive hybridisation between the exotic species, sika deer (Cervus nippon (Ta... more THE existence of extensive hybridisation between the exotic species, sika deer (Cervus nippon (Tamminck)) and the native species, red deer (Cervus e/;phus (L)) is now an established phenonomen (Harrington, 1973)...
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 2011
The nitrogen (N) removal performance of a 3.25 ha Integrated Constructed Wetland (ICW) treating d... more The nitrogen (N) removal performance of a 3.25 ha Integrated Constructed Wetland (ICW) treating domestic wastewater from Glaslough village in County Monaghan, Ireland, was evaluated in this study. The ICW consists of two sludge ponds and five shallow vegetated wetland cells. Influent and effluent concentrations of two N species, namely, ammonia-nitrogen (NH(3)-N) and nitrate-nitrogen (NO(3)-N), which were measured weekly over 2 years, together with hydrology of the ICW provided the basis for this evaluation. The influent wastewater typically contained 40 mg L(-1) NH(3)-N and 5 mg L(-1) NO(3)-N. Concentrations of N in the ICW effluent were typically less than 1.0 mg L(-1) for both species. Overall, a total load of 2802 kg NH(3)-N and 441 kg NO(3)-N was received by the ICW and a removal rate of 98.0 % and 96.9 %, respectively, was recorded. Average areal N loading rate (245 mg m(-2) d(-1) NH(3)-N and 38 mg m(-2) d(-1) NO(3)-N) had a significant linear relationship with areal N removal...
The Red Deer (Cervus elaphus scoticus Lonnberg, 1906) is generally considered to be the only nati... more The Red Deer (Cervus elaphus scoticus Lonnberg, 1906) is generally considered to be the only native hoofed animal that has lived contemporaniously with man in Ireland (Charlesworth, 1963 and O'Rourke, 1970). Ecologically, the red deer appears to be an animal of the transition zone between forest and steppe (Dzieciolowski, 1969) and it was widely distributed in Ireland up to the mid-eighteenth century (Pococke, 1752; Moryson, 1735 and Scouler, 1833). The present distribution of the species in the wild is however confined to three of the thirty two counties of Ireland and only in County Kerry are the deer considered to be indigenous. The other two counties, Wicklow and Donegal, have stock of mainly alien origin...
Uploads
Papers by Rory Harrington