Treatment and parameter

DO (mg/L)

pH

Volume (L)

Thermotolerant coliform

(10⁶ CFU/100 mL)

Sulfite reducing bacteria

(10⁴ CFU/100 mL)

Value

Value

Value

Value

% RE

Value

% RE

Wastewater

Average

1.04^a

6.91^a

120^a

1.17^a

4.82^a

Max

1.36

7.03

120

1.42

8.13

Min

0.82

6.75

120

1.00

1.45

Planted bed (PB)

Average

2.31^b

7.11^b

98.4^b

0.04^b

97.41^a

0.74^b

87.50^a

Max

2.84

7.24

107.3

0.08

98.79

1.22

91.35

Min

2.03

7.04

90.3

0.02

94.93

0.24

80.13

Unplanted bed (UB)

Average

1.90^c

7.00^a

107.9^c

0.10^c

92.21^b

0.83^c

84.56^b

Max

2.06

7.19

113.8

0.13

96.57

1.28

87.87

Min

1.65

6.83

101.5

0.04

89.64

0.30

76.88