Operation

Feed Composition

Operating time (day)

Secondary Effluent

Primary Effluent

% TN removal

% COD removal

% Phosphorus removal

% TN removal

% COD removal

% Phosphorus removal

Start up

100% SWW

2

72

53

54

52

20.5

63

80% SWW + 20% RWW

2

62

42

21

35

16

48

50% SWW + 50% RWW

2

58

31

27

40

15.5

52

40% SWW + 60% RWW

2

58

32

40

37.7

14.7

54

30% SWW + 70% RWW

2

62

33

61

33.5

10.5

72

20% SWW + 80% RWW

2

67

33

63

34

9.5

73

100% RWW

2

69

32

64

35

14

76