Parameters

Pre-treatment (%)

Outlet FHa (%)

Outlet FHb (%)

EC (mS/cm)

−6.7

−8.4

−7.6

SS (mg/L)

45.9

25

55.5

BOD5 (mg/L)

24.4

−61.7

2.1

COD (mg/L)

14.3

9.4

19.1

N-TN (mg/L)

26.5

35.7

39.4

${\text{N-NH}}_4^{+}$ (mg/L)

23.8

1.2

18.1

${\text{N-NO}}_3^{-}$ (mg/L)

37.2

63.7

59.2

${\text{P-PO}}_4^{3-}$ (mg/L)

3.1

60.1

84.8