Treatment of Textile Industrial Wastewater  from Water Jet Loom Machine

1. TREATMENT OF TEXTILE
INDUSTRIAL
W ASTEWATER
FROM WATER JET LOOM
MACHINE
Khanittha Charoenlarp
Rajamangala University of Technology Krungthep
Thailand.

2. Introduction
 The textile industry is a very diverse and
broad manufacturing sector.
 Yarn production.
 Fabric production.
 Finishing.
 Fabrication.

3. Yarn production
carding spinning

4. Fabric production
Weaving
Knitting

5. Finishing
Bleaching Dyeing
Printing Finishing

6. Fabrication

7. Introduction
 W eaving is one of the primary methods
of textile production.
 It involves interlinking a set of vertical
threads with a set of horizontal threads.

8. Weaving loom
Conventional loom
Air jet loom Water jet loom
rapier loom

9. Water jet loom

10. Water jet loom
 Advantage  Disadvantage
 Wide variety of  High amount of
fiber and yarn wastewater.
types.  Wastewater
 Widely used for contaminate with
apparel fabrics. oil and sizing
 Decreasing of agent.
noise.
 Decreasing of
damage yarn.

11. Introduction
 This sizing agent
 Polyvinyl alcohol
 Acrylic
 Lubricant substances
 The oily wastes
 Objectionable odors
 Undesirable appearance
 Toxic
 Limits oxygen transfer

12. W astewater Treatment in
Textile Industry
 Biological treatment
 Dissolved air floatation
 Coagulation-flocculation
 Membrane process

13. Coagulation Flocculation
 Chemical coagulants cause formation of
a sludge phase that can be separated by
density difference.
 Major coagulants:
 Al2(SO4) 3.14H2O (Alum)
 FeCl3.6H2O
 Fe2SO4

14. Destabilization

15. Electro-coagulation Defined:
Similar to Chemical Coagulation
Destabilize Charged Particles
Physical Removal (Settling)

17. Electro-coagulation can remove a wide
range of pollutants at the same time:
 suspended solids
 dyes
 emulsion
 organic matters
 heavy metals

18. Objective
 Investigating the efficiency of the method for
treatment of wastewater from water jet loom
machine by comparison between chemical coa
gulation and electrocoagulation.

19. Method
 Analysis of wastewater from jet loom machine
 Chemical coagulation experiment
 Electrocoagulation experimental

20. 1. Analysis of wastewater from jet loom
machine
• The weaving wastewater from jet loom machine in
Chonburee Province, Thailand was used in this
study.
• The properties of wastewater to be analyzed were
turbidity, suspended solid (SS), total solid (TS), oil
content and chemical oxygen demand (COD).

21. Measurements
pH
conductrometer
turbidimeter

22. Measurements
Dissolved solid and
suspended solid

23. 2. Chemical coagulation
experiment
 The influence factors of the chemical
coagulation condition
 Type and amount of coagulant
 Type and amount of coagulant aids
 pH
 Stirring rate

24. Chemical coagulation
Parameter
Condition Value
10% aq of coagulant (mL) 1.0,2.0,3.0,4.0,5.0 and
6.0
0.1% aq of coagulant aids 1.0,2.0 and 3.0
(mL)
pH 4,5,6,7,8, and 9
Rapid stirring rate (rpm) 100, 120 and 150
Slow stirring rate (rpm) 30,60,90,120,150 and
180

25. 3. Electrocoagulation
Experimental

26. Electrocoagulation parameter
Condition Value
Electrode material Al and Fe
Electric potential (V) 20,25,30 and 35
Contact time (min) 30,60,90,120,150 and 180

27. Results
Properties of wastewater from water jet loom
machine.
Parameter mean SD Standard
Value
pH (25oC) 7.5 0.2 5.5-9
Turbidity (NTU) 188.7 4.1 -
COD (mg/ L) 1601.1 317.5 120
SS (mg/ L) 157.0 12.0 <50
TS (mg/ L) 2969.0 98.6 <3000
Oil content (mg/L) 571.8 64.8 5.0

28. The influence factors of chemical
coagulation
 F-test at 0.05 level of significance.
 Type and amount of coagulant, type and
amount of coagulant aids, pH of solution and
stirring rate were affected significantly with
the efficiency of turbidity removal.

29. Effect of type and amount of coagulants
88%
( ) 10% w/w aq Aluminum sulfate
( ) 10% w/w aq Ferrous sulfate
() 10% w/w aq Ferric chloride

30. Effect of pH

31. Effect of type and amount of coagulant aids
() 10%w/w aq aluminium sulfate + 0.01%w/w aq anionic polymer
() 10%w/w aq aluminium sulfate + 0.01%w/w aq cationic polymer

32. Effect of stirring rate

33. Effect of stirring rate

34. The influence factors of
electrocoagulation
 F-test at 0.05 level of significance.
 Electrode materials, Electric potential, and
contact time were affected significantly with
the efficiency of the turbidity removal.

35. Effect of electrode materials
() Aluminium electrode () iron electrode

36. The effect of electric potential and
contact time
() 20V ()25V ()30V (x)35V

38. Conclusions
 The significant influence on the treatment
efficiency of chemical coagulation.
 The type and amount of coagulant
 The type and amount of coagulant aids
 Initial of pH
 Stirring rate

39. Conclusions
 The significant influence on the treatment
efficiency of electrocoagulation.
 Electrode material
 Electric potential
 Contact time

40. Optimum condition of chemical coagulation
method
 10% w/ of aluminum sulphate 80 mL and
w
0.01% w/ of cationic polymer 32 mL per 4 L of
w
wastewater.
 The mixture solution was rapidly stirred with 120
rpm for 1 min and then slowly stirred with 20
rpm for 20 min.
 The removal efficiency of turbidity, COD and oil
content were 89%, 85% and 71%, respectively.

41. Optimum condition of
electrocoagulation method
 Aluminum electrode with 35 volts and 150
min of contact time.
 The removal efficiency of turbidity, COD and
oil content were 99%, 97% and 87%
respectively.

42. Acknowledgement
 The authors would like to thank Rajamangala
university of Technology Krungthep for the
financial support and also grateful to
Assist.Prof. Dr. Waraporn Tanakulrangsarn
and Assist.Prof. Puangmanee Tantiwong for
theirs valuable comments and suggestions.
Thank you for your attention