Skip to main content

Table 5 Summary of index actual values for enterprise 2 in 2014

From: Wastewater treatment evaluation for enterprises based on fuzzy-AHP comprehensive evaluation: a case study in industrial park in Taihu Basin, China

Index

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Average

COD effluent concentration

248

216

194

173

224

256

237

208

183

165

151

195

204

NH3-N effluent concentration

18.5

19.2

23.6

22.6

24.8

26.3

16.4

17.9

18.8

19.5

27.2

15.9

20.9

TP effluent concentration

1.2

1.5

0.7

0.8

1.1

0.9

0.6

1.8

2

1.4

0.8

1.7

1.2

TN effluent concentration

26.7

23.7

35.1

39

41.5

25.4

22.9

29.3

33.5

38.7

36.2

30.6

31.9

Effluent colority

30

40

40

50

60

40

30

30

40

40

40

50

40

Unit product water consumption

125.3

148.7

203.6

224.8

131

154.7

160.4

138.5

134.6

221.5

178.3

142

163.6

Unit product wastewater discharge

117.5

158.4

138.9

126.5

190.3

105.8

148.3

170.6

163.5

98.7

102.5

115.6

136.4

Wastewater treatment cost per ton

1.38

1.49

1.63

1.32

1.17

1.06

1.43

1.85

1.42

1.51

1.47

1.3

1.42

Operating load of sewage treatment

58

70

62

44

38

49

45

36

38

62

53

44

50

Recycling rate of industrial water

37

36

26

22

32

30

28

25

21

36

40

25

30

Reuse rate of tail water

0

0

0

0

0

0

0

0

0

0

0

0

0

Stability compliance rate of wastewater treatment

99.5

99.2

99.8

99.4

98.8

99.3

99.7

98.9

99.1

99.5

99.3

99.2

99.3