Table 4 Summary of index actual values for enterprise 1 in 2014

COD effluent concentration

347

358

388

410

401

329

337

420

360

372

380

313

368

NH₃-N effluent concentration

29.4

27.8

36.6

26.3

28.7

25.8

28.4

33.5

29

32.5

34.7

37.1

30.8

TP effluent concentration

1.7

1.8

2.3

2

1.6

2.7

2.8

1.8

2.5

2.1

2.3

1.5

2.1

TN effluent concentration

50.7

41.1

37.2

34.6

35.6

53.3

50.5

42.4

48

47

38.5

45.4

43.7

Effluent colority

80

50

60

50

60

50

60

60

70

50

70

60

60

Unit product water consumption

213.7

279.3

203.5

219.7

243.2

199.3

195.5

286.5

217.8

225.4

268.6

190.8

228.6

Unit product wastewater discharge

161.1

150.6

140.8

205.6

198.5

133.7

173.6

224.2

139.5

193.4

152.4

183.3

171.4

Wastewater treatment cost per ton

1.12

0.8

0.91

1.04

1.59

1.16

1.25

1.06

1.21

1.37

1.17

1.23

1.16

Operating load of sewage treatment

72

54

57

63

46

81

54

72

59

48

65

48

60

Recycling rate of industrial water

20

32

27

23

36

16

31

23

24

30

22

17

25

Reuse rate of tail water

63

56

89

82

64

73

58

61

78

82

69

64

70

Stability compliance rate of wastewater treatment

98.8

99

98.4

99.2

99.4

98.6

98.9

98.9

99.3

98.8

98.5

99.1

98.9