Table 4 Range analysis results of head loss and filtration efficiency in muddy water.

From: Establishment of predictive models for head loss and filtration efficiency of pontoon mesh rotary filter based on dimension analysis

Test

Flow rate (L1 h−1)

Sand content (g1 L−1)

Aperture of filter screen (mm)

Head loss (m)

Filtration efficiency (-)

Rotation speed (rad1 min−1)

1

798

0.5

0.180

0.220 ± 0.0015

0.6613 ± 0.013

10.00 ± 0.85

2

858

0.5

0.180

0.241 ± 0.0026

0.6625 ± 0.023

11.20 ± 0.76

3

930

0.5

0.180

0.260 ± 0.0063

0.6715 ± 0.076

12.90 ± 0.54

4

1008

0.5

0.180

0.280 ± 0.0070

0.6798 ± 0.031

13.00 ± 0.65

5

1050

0.5

0.180

0.300 ± 0.0081

0.7421 ± 0.033

13.70 ± 0.85

6

798

1.0

0.180

0.225 ± 0.0091

0.7426 ± 0.053

9.60 ± 0.61

7

858

1.0

0.180

0.245 ± 0.0052

0.7656 ± 0.006

10.80 ± 0.25

8

930

1.0

0.180

0.263 ± 0.0068

0.7829 ± 0.071

12.60 ± 0.67

9

1008

1.0

0.180

0.282 ± 0.0068

0.7963 ± 0.049

12.70 ± 0.55

10

1050

1.0

0.180

0.305 ± 0.0033

0.8011 ± 0.015

13.50 ± 0.24

11

798

1.5

0.180

0.234 ± 0.0016

0.7523 ± 0.05

9.40 ± 0.97

12

858

1.5

0.180

0.247 ± 0.0011

0.7763 ± 0.007

10.60 ± 0.33

13

930

1.5

0.180

0.269 ± 0.0048

0.7932 ± 0.005

12.00 ± 0.26

14

1008

1.5

0.180

0.284 ± 0.0061

0.8006 ± 0.002

12.50 ± 0.47

15

1050

1.5

0.180

0.306 ± 0.0070

0.8256 ± 0.071

13.35 ± 0.75

16

798

2.0

0.180

0.234 ± 0.0068

0.7864 ± 0.068

9.20 ± 0.64

17

858

2.0

0.180

0.252 ± 0.0010

0.8022 ± 0.072

10.30 ± 0.24

18

930

2.0

0.180

0.269 ± 0.0011

0.8263 ± 0.086

11.40 ± 0.39

19

1008

2.0

0.180

0.288 ± 0.0002

0.8321 ± 0.015

12.30 ± 0.28

20

1050

2.0

0.180

0.307 ± 0.0099

0.8424 ± 0.023

13.00 ± 0.96

21

798

2.5

0.180

0.239 ± 0.0056

0.8012 ± 0.058

9.00 ± 0.72

22

858

2.5

0.180

0.252 ± 0.0039

0.8362 ± 0.036

10.00 ± 0.91

23

930

2.5

0.180

0.272 ± 0.0024

0.8499 ± 0.087

11.00 ± 0.55

24

1008

2.5

0.180

0.300 ± 0.0085

0.8582 ± 0.000

12.00 ± 0.36

25

1050

2.5

0.180

0.320 ± 0.0088

0.8652 ± 0.020

13.00 ± 0.64

26

798

0.5

0.150

0.224 ± 0.0076

0.6611 ± 0.026

10.10 ± 0.43

27

858

0.5

0.150

0.244 ± 0.0058

0.6712 ± 0.055

11.00 ± 0.24

28

930

0.5

0.150

0.261 ± 0.0011

0.6842 ± 0.061

12.00 ± 0.29

29

1008

0.5

0.150

0.291 ± 0.0032

0.7169 ± 0.020

12.90 ± 0.34

30

1050

0.5

0.150

0.310 ± 0.0059

0.7524 ± 0.070

13.50 ± 0.82

31

798

1.0

0.150

0.226 ± 0.0062

0.7511 ± 0.025

9.70 ± 0.94

32

858

1.0

0.150

0.249 ± 0.0067

0.7715 ± 0.070

10.70 ± 0.37

33

930

1.0

0.150

0.270 ± 0.0064

0.7963 ± 0.005

11.60 ± 0.65

34

1008

1.0

0.150

0.291 ± 0.0082

0.8004 ± 0.095

12.70 ± 0.43

35

1050

1.0

0.150

0.312 ± 0.0084

0.8103 ± 0.048

13.50 ± 0.49

36

798

1.5

0.150

0.234 ± 0.0012

0.7643 ± 0.003

9.40 ± 0.52

37

858

1.5

0.150

0.255 ± 0.0042

0.7824 ± 0.012

10.60 ± 0.77

38

930

1.5

0.150

0.271 ± 0.0046

0.8069 ± 0.021

11.45 ± 0.73

39

1008

1.5

0.150

0.295 ± 0.0051

0.8122 ± 0.003

12.50 ± 0.26

40

1050

1.5

0.150

0.312 ± 0.0049

0.8326 ± 0.025

13.30 ± 0.82

41

798

2.0

0.150

0.235 ± 0.0092

0.7982 ± 0.011

9.20 ± 0.16

42

858

2.0

0.150

0.255 ± 0.0058

0.7821 ± 0.017

10.30 ± 0.19

43

930

2.0

0.150

0.281 ± 0.005

0.8401 ± 0.041

11.35 ± 0.52

44

1008

2.0

0.150

0.299 ± 0.0043

0.8507 ± 0.078

12.2 ± 0.13

45

1050

2.0

0.150

0.318 ± 0.0019

0.8549 ± 0.005

13.25 ± 0.26

46

798

2.5

0.150

0.250 ± 0.0019

0.8175 ± 0.036

9.05 ± 0.44

47

858

2.5

0.150

0.275 ± 0.0094

0.8421 ± 0.008

10.00 ± 0.16

48

930

2.5

0.150

0.288 ± 0.0098

0.8615 ± 0.024

11.10 ± 0.47

49

1008

2.5

0.150

0.300 ± 0.0012

0.8699 ± 0.080

12.15 ± 0.52

50

1050

2.5

0.150

0.322 ± 0.0062

0.8752 ± 0.019

13.00 ± 0.16

51

798

0.5

0.125

0.230 ± 0.0064

0.7009 ± 0.004

9.80 ± 0.63

52

858

0.5

0.125

0.255 ± 0.0023

0.7309 ± 0.032

10.90 ± 0.55

53

930

0.5

0.125

0.279 ± 0.0083

0.7469 ± 0.091

11.60 ± 0.16

54

1008

0.5

0.125

0.300 ± 0.0062

0.7521 ± 0.006

12.80 ± 0.24

55

1050

0.5

0.125

0.319 ± 0.0035

0.7683 ± 0.042

13.80 ± 0.98

56

798

1.0

0.125

0.240 ± 0.0043

0.7524 ± 0.081

9.60 ± 0.88

57

858

1.0

0.125

0.260 ± 0.0076

0.7659 ± 0.073

10.80 ± 0.35

58

930

1.0

0.125

0.279 ± 0.0040

0.7926 ± 0.099

11.50 ± 0.76

59

1008

1.0

0.125

0.301 ± 0.0038

0.8112 ± 0.095

12.55 ± 0.59

60

1050

1.0

0.125

0.317 ± 0.0020

0.8397 ± 0.092

13.6 ± 0.16

61

798

1.5

0.125

0.240 ± 0.0054

0.7856 ± 0.019

9.40 ± 0.85

62

858

1.5

0.125

0.264 ± 0.0039

0.7955 ± 0.035

10.58 ± 0.26

63

930

1.5

0.125

0.282 ± 0.0068

0.8130 ± 0.075

11.40 ± 0.24

64

1008

1.5

0.125

0.300 ± 0.0033

0.8321 ± 0.026

12.50 ± 0.38

65

1050

1.5

0.125

0.322 ± 0.0016

0.8753 ± 0.058

13.40 ± 0.85

66

798

2.0

0.125

0.250 ± 0.0011

0.8421 ± 0.018

9.22 ± 0.73

67

858

2.0

0.125

0.272 ± 0.0048

0.8539 ± 0.095

10.40 ± 0.43

68

930

2.0

0.125

0.284 ± 0.0061

0.8726 ± 0.024

11.32 ± 0.56

69

1008

2.0

0.125

0.309 ± 0.0070

0.8879 ± 0.068

12.40 ± 0.51

70

1050

2.0

0.125

0.322 ± 0.0068

0.8966 ± 0.052

13.20 ± 0.83

71

798

2.5

0.125

0.264 ± 0.0010

0.8516 ± 0.040

9.00 ± 0.11

72

858

2.5

0.125

0.286 ± 0.0011

0.8756 ± 0.024

10.16 ± 0.68

73

930

2.5

0.125

0.300 ± 0.0002

0.8921 ± 0.013

11.15 ± 0.34

74

1008

2.5

0.125

0.320 ± 0.0099

0.9056 ± 0.022

12.25 ± 0.78

75

1050

2.5

0.125

0.330 ± 0.0056

0.9124 ± 0.038

13.00 ± 0.54

K1/E1

3.546/11.468

4.016/10.602

6.697/19.553

   

K2/E2

3.855/11.713

4.066/11.779

6.875/19.806

   

K3/E3

4.137/12.030

4.120/12.047

7.130/20.552

   

K4/E4

4.440/12.206

4.181/12.568

    

K5/E5

4.724/12.494

4.319/12.914

    

k1/e1

0.236/0.764

0.267/0.706

0.267/0.782

   

k2/e2

0.257/0.780

0.271/0.785

0.275/0.792

   

k3/e3

0.275/0.802

0.274/0.803

0.285/0.822

   

k4/e4

0.296/0.813

0.278/0.837

    

k5/e5

0.314/0.832

0.287/0.860

    

Range R

0.078/0.068

0.020/0.154

0.017/0.039

   

Rank

1/2

2/1

3/3

   
Back to article page