Denitrification rate [mg/m2/day] | ||||
Depth [cm] | Control | 5 g Calcium nitrate | 10 g Calcium nitrate | 30 g Calcium nitrate |
0 - 10 | 21.3 | 25.2 | 36.4 | 46.1 |
Nitrate in Pore water/NO3-N [mg/L] | ||||
Depth [cm] | Control | 5 g Calcium nitrate | 10 g Calcium nitrate | 30 g Calcium nitrate |
0 - 10 | 0.58 | 8.53 | 5.62 | 2.67 |
10 - 20 | 0.68 | 0.19 | 7.75 | 1.27 |
Nitrate in bulk water/NO3-N [mg/L] | ||||
Control | 5 g Calcium nitrate | 10 g Calcium nitrate | 30 g Calcium nitrate | |
0.6 | 4.2 | 6.1 | 18.2 | |
Acid-volatile sulfide (AVS) [%] | ||||
Depth [cm] | Control | 5 g Calcium nitrate | 10 g Calcium nitrate | 30 g Calcium nitrate |
0 - 10 | 0.00002 | N.D. | N.D. | N.D. |
10 - 20 | 0.004 | 0.0006 | N.D. | N.D. |