Water Treatment for Fish Aquaculture System by Biochar-Supplemented Planting Panel System
Table 4
Total solids, suspended solids, nitrite, orthophosphate, dissolved oxygen, and pH of water in aquatic ponds and hydroponic system.
Pond number
Total solids (mg/L)
Suspended solids (mg/L)
Nitrite (mg/L)
Orthophosphate (mg/L)
Dissolved oxygen (mg/L)
pH
7th day
1
162
94
1.2083
0.2347
5.34
6.542
2
150
80
0.9439
0.2234
6.35
6.568
3
132
54
0.1613
0.1435
6.41
6.983
17th day
1
204
172
2.1611
0.3253
5.73
6.573
2
83
96
1.1123
0.2023
6.65
6.751
3
56
43
0.1216
0.1364
7.34
7.163
27th day
1
290
228
3.6583
0.3425
5.54
6.625
2
72
64
2.8732
0.1958
6.52
6.356
3
42
34
0.1486
0.1743
7.31
6.923
37th day
1
328
280
3.0708
0.4173
5.38
6.831
2
60
47
1.6521
0.2042
6.75
6.259
3
36
25
0.1209
0.1725
6.40
7.038
47th day
1
373
302
3.1937
0.4264
5.30
6.878
2
43
32
1.6190
0.2273
6.78
7.078
3
35
28
0.1641
0.1755
7.40
7.048
Pond number 1 = aquatic pond, pond number 2 = aquatic pond connect to hydroponic system without rice husk biochar, and pond number 3 = aquatic pond connect to planting panel with rice husk biochar.
