The document presents a study on treating textile wastewater using chlorination. It describes installing a packed column to decolorize wastewater with chlorine gas. Water samples were tested for pH, TDS, TSS and COD before and after treatment. The results showed pH values between 8-9, and decreases in TDS, TSS and COD after treatment, indicating the process was effective at reducing contaminants. Recommendations include modifying the system for continuous operation and adding a backwash process for the column.

1. Presentation on
Treatment of wastewater from textile
industry by chlorination method
Abdullah Al Loman
Student No: 0402011

2. Statement of the objective
Installation of a packed column for the purpose of de-colorization
of wastewater from the textile industry with chlorine gas.
To determine the physical parameters TDS and TSS and the
chemical parameters pH and COD of wastewater.
To determine the physical parameters TDS and TSS and the
chemical parameters pH and COD of treated waste water.
To compare those parameters of treated sample with the raw
sample.

3. Process Block Diagram (PBD)

4. Process Flow Diagram(PFD)
Flow meter To Atmosphere
Raw Wastewater Tank Packed
Column
C-101
P-101
T-101
Recycle to the tank
Air Mixing
Cl2 + Air
Flow meter
H2SO4 Produced Cl2
Reactor NaCl
MnO2
R-101

5. Experimental Set-up
Packed
Column
Flow
Meter Blower
Rotameter
Tank
Mixing
Chamber Round bottom
flask
Collector and
recycle to the tank

6. Photographs of the set-up

7. Results
Parameters Experiment 1
Raw sample Treated sample
pH 8.68 8.78
TDS (mg/L) 2414 1730
COD(mg/L) 555.6 348.4
TSS(mg/L) 2624 2205

8. Results (cont’d…….)
The Graph of pH vs. time for the Experiment 1
(50 mg/L)
10
9
8
7
6
pH
5
4
3
2
1
0
0 10 20 30 40 50 60 70 80 90 100
Time (min)

9. Results (cont’d…….)
Before treatment After treatment
Figure: Color comparison of raw water with treated water for experiment no1

10. Conclusions
Installation of Packed Column
De-colorization of wastewater
TDS, TSS and COD values decreased
pH values were in the range of 8-9

11. Recommendation for further study
It could be done by continuous process
A concentration indicator could be installed after
Chlorine- Air mixing chamber
There should be exist back wash process of the column
The recycle process of the treated sample to the raw
sample tank should be modified

12. THANKS TO ALL…