Đồ án tốt nghiệp - Study on the removal of color from aqueous solution using Tio2 - chitosan BAF

HCMC UNIVERSITY OF TECHNOLOGY AND EDUCATION
FALCUTY FOR HIGH QUALITY TRAINING – ENVIROMENTAL TECHNOLOGY

***

GRADUATION THESIS

STUDY ON THE REMOVAL OF
COLOR FROM AQUEOUS
SOLUTION USING TIO2 – CHITOSAN
BEADS AND FILMS
SUPERVISOR: Dr. Hoang Thi Tuyet Nhung
STUDENTS:

Dao Thanh Long

15150018

Nguyen Hoang Thuy Tien 15150038

COURSE: 2018 – 2019

HCMC, July 2019

SOCIALIST REPUBLUC OF VIETNAM
Independence – Freedom – Happiness
***

MISSION OF GRADUATION THESIS
Name: Dao Thanh Long

Student ID: 15150018

Nguyen Hoang Thuy Tien

15150038

Major: Environmental Engineering and Technology

Class: 15150CL2

Supervisor: Dr. Hoang Thi Tuyet Nhung
Receive date: 03/2018

Submit date: 8/2018

1. Topic: Study on the removal of color from aqueous solution using TiO2 – chitosan
beads and films.
Fields: Research
2. Content implementation
- Prepare bead and film forms from chitosan, glycerol and TiO2.
- Observe the catalytic activity of samples with different kind of organic colors such
as Methyl Orange, Near Wash Yellow, Acid Blue and Textile Color.
- Examine the characteristics of the prepared material by the SEM, EDX, FTIR, XRD
methods.
- Evaluate the effect of factors on the color reduction such as pH, hydraulic retention
time, the concentration of TiO2, mass of material and initial color concentration.

Ho Chi Minh, 29 / 7 / 2019
SUPERVISOR

Hoang Thi Tuyet Nhung

SOCIALIST REPUBLUC OF VIETNAM
Independence – Freedom – Happiness
***

COMMENT OF SUPERVISOR
Name: Dao Thanh Long
Nguyen Hoang Thuy Tien

Student ID: 15150018
15150038

Major: Environmental Engineering and Technology
Topic: Study on the removal of color from aqueous solution using TiO2 – chitosan
beads and films.
Supervisor: Dr. Hoang Thi Tuyet Nhung
COMMENT
1. Content impletemation &amp amount of work:
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2. Advantage:
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...

...
07

60

12.3714

89.0963

8.8939

101.0732

80

11.6832

80.0626

8.1111

106.5366

100

11.0343

78.3323

8.3793

111.6098

Appendix 10: Color and COD removal efficiencies of CGTi film for AB
Treatment efficiencies (%)

COD (mg/L)

Time
(min)

C0

CG

CTi

CGTi10

C0

CG

CTi

CGTi10

0

0.00

0.00

0.00

0.00

108.49

108.49

108.49

108.49

30

6.01

6.19

17.33

52.93

104.93

106.49

96.00

56.93

60

8.01

9.51

27.25

66.18

100.80

104.15

86.78

29.49

90

10.30

11.21

33.60

72.80

99.12

103.37

85.85

28.10

120

10.51

11.95

35.89

75.45

97.56

103.02

85.07

27.32

150

11.15

12.27

36.48

75.98

96.00

99.12

82.73

25.76

Page xiii

Appendix 11: Color and COD removal efficiencies of CGTi film for Textile Color
Treatment efficiencies (%)

COD (mg/L)

Time
(min)

C0

CG

CTi

CGTi10

C0

CG

CTi

CGTi10

0

0.00

0.00

0.00

0.00

138.15

138.15

138.15

138.15

30

4.19

2.47

19.44

54.18

131.90

135.80

127.22

106.93

60

7.89

5.99

26.36

71.53

127.22

132.68

120.20

80.39

90

10.07

8.40

29.65

80.11

120.20

127.22

110.83

28.10

120

12.12

10.42

31.73

83.79

118.63

126.44

108.49

26.54

150

13.37

11.78

33.66

86.81

117.85

124.88

107.71

22.63

Appendix 12: Factors affecting the photocatalytic process for CGTi film
TiO2

Co

pH

HRT

m

STDEV

MEAN

0.5

1

3

30

0.5

1.5932

57.7160

0.5

2

5

60

1

1.7234

74.0718

0.5

3

6

90

1.5

0.9719

90.3374

0.5

4

7

120

2

0.7681

93.8223

0.5

5

9

150

2.5

1.1482

82.4020

1

1

5

90

2

1.2500

84.5679

1

2

6

120

2.5

0.3426

93.9692

1

3

7

150

0.5

1.0513

88.9339

1

4

9

30

1

1.6625

77.1860

1

5

3

60

1.5

0.7310

83.0742

1.5

1

6

150

1

2.2539

84.0829

1.5

2

7

30

1.5

1.4371

70.1744

1.5

3

9

60

2

1.4445

84.8583

1.5

4

3

90

2.5

0.6214

94.5526

1.5

5

5

120

0.5

1.1269

83.4872

2

1

7

60

2.5

3.1143

77.6896

2

2

9

90

0.5

1.7960

77.0256

2

3

3

120

1

0.4460

93.7922

2

4

5

150

1.5

0.6180

93.7411

2

5

6

30

2

2.1981

77.8021

Page xiv

Appendix 13: Color and COD removal efficiencies of CGTi film and bead in the same
mass and optimum conditions

Initial

Treatment
Efficiencies
(%)
0

Bead

39.94

57.20

Film

79.98

19.51

Initial

0.00

105.37

Bead

46.59

54.63

Film

93.52

10.93

Initial

0.00

116.29

Bead

34.62

70.46

Film

63.54

46.83

Initial

0.00

133.46

Bead

41.85

80.39

Film

84.73

23.41

Type

MO

NWY

AB

TEXTILE
COLOR

Page xv

COD (mg/L)
110.05