Infiltrasjonsanlegget på Setermoen
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1 NORWEGIAN UNIVERSITY OF LIFE SCIENCES Infiltrasjonsanlegget på Setermoen Petter D. Jenssen*, Department of Environmental Sciences, Norwegian University of Life Sciences (NMBU), Tore Krogstad, Department of Environmental Sciences, Norwegian University of Life Sciences (NMBU), Kyrre Halvorsen, Trondheim kommune, Norway, 1
2 NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) Department of Environmental Sciences (IMV), Petter D. Jenssen Prudhoe Bay Setermoen Norway 2
3 NORWEGIAN UNIVERSITY OF LIFE SCIENCES Setermoen Renseanlegg 5000pe 3
4 Department of Environmental Sciences (IMV), Petter D. Jenssen NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) 4
5 Sludge sedimentation basins Setermoen Rapid Infiltration System 5000pe
6 Sludge sedimentation basins Infiltration basins (1,2,3) Setermoen Rapid Infiltration System 5000pe
7 Sludge sedimentation basins Service building Infiltration basins (1,2,3) Setermoen Rapid Infiltration System 5000pe
8 Sludge sedimentation basins Service building Main observation well Infiltration basins (1,2,3) Setermoen Rapid Infiltration System 5000pe
9 Setermoen Rapid Infiltration System 5000pe Direction of groundwater flow
10 NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) Department of Environmental Sciences (IMV), Petter D. Jenssen Potential area of influence and groundwater flow direction 10
11 NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) Department of Environmental Sciences (IMV), Petter D. Jenssen Setermoen rapid infiltration system Vertical view Main sampling well Direction of groundwater flow 11
12 NORWEGIAN UNIVERSITY OF LIFE SCIENCES Groundwater level
13 NORWEGIAN UNIVERSITY OF LIFE SCIENCES 7 m Groundwater level
14 NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) Department of Environmental Sciences (IMV), Petter D. Jenssen Setermoen rapid infiltration plant - Yearly mean treatment performance COD % Total nitrogen % Total phosphorus 99%
15 NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) Department of Environmental Sciences (IMV), Petter D. Jenssen Setermoen rapid infiltration plant - Treatment performance (%) , yearly averages 15
16 NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) Department of Environmental Sciences (IMV), Petter D. Jenssen Setermoen rapid infiltration plant - Monthly concentrations (mg/l) and treatment performance (%) ( (%)month
17 NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) Department of Environmental Sciences (IMV), Petter D. Jenssen Setermoen rapid infiltration plant - Monthly concentrations (mg/l) and treatment performance (%) ( (%)month
18 NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) Department of Environmental Sciences (IMV), Petter D. Jenssen Setermoen rapid infiltration plant - Monthly concentrations (mg/l) and treatment performance (%) ( (%)month
19 NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) Department of Environmental Sciences (IMV), Petter D. Jenssen Setermoen rapid infiltration plant - Treatment performance (%) , yearly averages
20 NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) Department of Environmental Sciences (IMV), Petter D. Jenssen Setermoen rapid infiltration plant - Mean treatment performance and
21 Total phosphorus removal 99% Phosphorus sorption capacity: 12 years below each basin
22 Total nitrogen removal 35-85%
23 Total nitrogen removal 35-85%
24 Total nitrogen removal 35-85%
25 NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) Department of Environmental Sciences (IMV), Petter D. Jenssen Setermoen rapid infiltration plant Nitrogen removal Anaerobic zones 25 Aerobic zone
26 Total nitrogen removal 35-85%
27 Removal of indicator bacteria? Main sampling well Groundwater level
28 Removal of indicator bacteria? Fecal coliforms 100/100ml Main sampling well Groundwater level
29 Sludge sedimentation basins Main observation well Infiltration basins (1,2,3) Setermoen Rapid Infiltration System 5000pe
30 NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) 30 Department of Environmental Sciences (IMV), Petter D. Jenssen Conclusions The Setermoen rapid infiltration plant has for over 25 years consistently removed more than 98% of the total phosphorus and more than 85% of the COD. The phosphorus removal capacity is predicted to last 12 years below each basin and the treatment results seems to confirm the prediction. Annual removal of total nitrogen has varied from 35 to above 80%. The nitrogen removal seems to have dropped after the municipality introduced garbage grinders. The system has saved the municipality an estimated 45 million NOK over 25 years compared to investment and operation of a conventional mechanical/chemical treatment system.
31 Department of Environmental Sciences (IMV), Petter D. Jenssen NORWEGIAN UNIVERSITY OF LIFE SCIENCES (NMBU) 31Takk for oppmerksomheten!
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