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Table 6

Performance of the constructed wetland (CW) in the removal of the environmental pollutants

Measured parameterInOutExpected design efficiency (%)Actual CW efficiency (%)
BOD5 (mg/L) 155 ± 23 25 ± 3 85.2 83.9 
COD (mg/L) 624 ± 81 68 ± 9 75.9 78.2 
TSS (mg/L) 1,040 ± 154 40 ± 6 97.2 96.2 
(mg/L) 285 ± 6 5 ± 1 99.1 98.2 
Fecal coliforms (CFU/100 mL) 10,324 ± 273 330 ± 15 97.2 96.8 
(mg/L) 34.6 ± 6.8 7.4 ± 2.1 80.3 78.6 
NH3 (mg/L) 105.5 ± 12.8 5.0 ± 1 97.6 95.3 
Turbidity (NTU) 1,934 ± 96 12.5 ± 1.2 99.1 99.4 
Measured parameterInOutExpected design efficiency (%)Actual CW efficiency (%)
BOD5 (mg/L) 155 ± 23 25 ± 3 85.2 83.9 
COD (mg/L) 624 ± 81 68 ± 9 75.9 78.2 
TSS (mg/L) 1,040 ± 154 40 ± 6 97.2 96.2 
(mg/L) 285 ± 6 5 ± 1 99.1 98.2 
Fecal coliforms (CFU/100 mL) 10,324 ± 273 330 ± 15 97.2 96.8 
(mg/L) 34.6 ± 6.8 7.4 ± 2.1 80.3 78.6 
NH3 (mg/L) 105.5 ± 12.8 5.0 ± 1 97.6 95.3 
Turbidity (NTU) 1,934 ± 96 12.5 ± 1.2 99.1 99.4 
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