Table. 2.

NO3- maximum storage (Min-NO3), NO3- removal (Mrem-NO3) and NO3- removal efficiency (Nrem-NO3) under different water waves


Parameters Conditions Min-NO3 Mrem-NO3 Nrem-NO3
Different flood wave parameters Amplitude, A (T = 3, r = 2.0, tp= T/4) 0.2 4.744 1.034 21.80%
0.4 8.534 1.698 19.90%
0.6 12.244 2.321 18.96%
0.8 15.953 2.937 18.41%
1.0 19.707 3.548 18.00%

Duration, T (A = 0.6, r =2.0, tp= T/4) 1 6.520 1.372 21.04%
2 9.724 1.886 19.40%
3 12.244 2.321 18.96%
4 14.428 2.693 18.67%
5 16.364 3.058 18.69%

Wave type parameter, r (A = 0.6, T = 3, tp= T/4) 1.2 13.801 2.577 18.67%
1.5 13.114 2.463 18.78%
2.0 12.244 2.321 18.96%
2.5 11.495 2.207 19.20%
3.0 11.082 2.119 19.12%

Rising duration, tp (A = 0.6, T = 3, r = 2.0) T/6 =0.5 11.346 2.172 19.14%
T/5 =0.6 11.786 2.24 19.01%
T/4 =0.75 12.244 2.321 18.96%
T/3 =1 12.729 2.391 18.78%
T/2 =1.5 13.071 2.445 18.71%

The shaded area corresponds to the base case (i.e., A = 0.6 m, T = 3d, r = 2.0 and tp = T/4 = 0.75d). Different flood wave parameters are generated based on the base case by changing only one parameter at a time and keeping the remaining parameters unchanged.

Episodes 2019;42:333~341 https://doi.org/10.18814/epiiugs/2019/019027
© International Union of Geological Sciences