Table 10 Comparison of energy between Scenarios 1 and 2.

From: Modeling of novel processes for eliminating sidestreams impacts on full-scale sewage treatment plant using GPS-X7

Facility

S1 energy (KW/h)

S2 energy (KW/h)

Difference (KW/h)

Screw pump

300

288

12

Coarse and fine screen

10.4

10

0.4

Grit and oil removal

98.15

94.22

3.93

Primary clarifier

55.58

53.4

2.18

Intermediate screw

255

245

10

Anaerobic tank

5.6

5

0.6

Anoxic tank

36

33.85

2.15

IR

50.4

30.24

20.16

Aeration tank

1201

1056

145

Secondary clarifier

64

62.5

1.5

RAS

160

154

6

WAS

16.5

16

0.5

Chlorination system

109

109

0

Gravity thickener

5.14

4.9

0.24

Mechanical thickener

37.15

40

2.85

Blending

15.5

15.5

0

Anaerobic digester

118

118

0

EN-MBBR system

0

35

 − 35

EN-MBBR sludge production

0

 − 270

270

Total energy saved

  

442.51

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