Evaluation of Waste Stabilization Pond Efficiency and Its Effluent Water Quality: a Case Study of Kito Furdisa Campus, Jimma University, Southwest Ethiopia
Table 3
Mean ± SD physicochemical and bacteriological quality analysis of WSP system in Kito Furdisa Campus, Jimma University, Jimma town, Southwest Ethiopia, 2020.
Parameters
Influent concentration
Effluent concentration
Removal efficiency (%)
BOD5 (mg/L)
472.9 ± 0.42
117 ± 0.64
75.3
COD (mg/L)
1051.3 ± 1.6
457.5 ± 2.5
56.5
TSS (mg/L)
643.9 ± 1.28
220.5 ± 0.5
65.8
TN (mg/L)
82.8 ± 0.66
17.4 ± 0.45
79
NH3-N (mg/L)
2.5 ± 0.05
1.18 ± 0.04
52.8
NO3−(mg/L)
0.58 ± 0.03
0.17 ± 0.03
70.7
TP (mg/L)
15.6 ± 0.15
4.8 ± 0.2
69.2
PO4−3 (mg/L)
11.6 ± 0.81
3.36 ± 0.13
71
Total coliform (MPN/100 mL)
4.87 × 108 ± 0.15
3.41 × 103 ± 0.12
99.99
Fecal coliform (MPN/100 mL)
1.5 × 104 ± 0.5
8.54 × 102 ± 0.12
94.3
indicates that the parameter was significantly in removal efficiency at . indicates that the parameter was significantly in removal efficiency at .
