1. CHLOR ALKALI INDUSTRY Uğur KÜÇÜKBAYRAK Mesut Emrah ÖZTÜRK Nazenin GÜRE Sedat KEKEÇ

2. 1) Introduction Koruma Industry Koruma Tarım Established in 1949
Derince chloralkali plant in1963
Changed hand to Vefa İbrahim Araci in 1994
Able to provide,
Chloralkali,
Agriculture,
Transportation
Cleaning(products to clean)
Packaging
Tourism Fields
Environmental balance (with St. of ISO )

3. Koruma is the first company
Having EPKD electricity producer licence
Produces energy via natural gas in Derince
Koruma’s Envioronment View
Using Energy efficient & Environmentally
friendly technologies
Using scare sources Efficiently

4. 1.1) Effluens from Koruma Industry
Cloralkali Industry Wastewater Effluent Types
Domestic Wastewater
Industrial Wastewater
Koruma Industry produce
Q (Domestic WW )= 70 m3 /d
Q (Industrial WW) = 120m3 /d.

5. 1.2) Domestic Wastewater Treatment System
Flow Diagram

6. Domestic Wastewater Treatment Plant

7. Aeration Tank (Aerobic Reactor)

8. Domestic Wastewater Sedimentation Tank

9. Baffles At the Effluent DWW

10. 1.3 Industrial Wastewater Treatment
It is consist of;
Coagulation by a rapid mix
Flocculation Tank
Sedimentation of Flocs
Effluent Discharge

11. Rapid Mixing Ferric Chloride is added for floc formation
Polyelectrolyte for aid
Sulfide Chemical (presence of Cl-)

12. Flocculation Floc Formation Takes Place
High HRT value for better contact time
Power is supplied by a slow mix

13. Sedimentation Sedimentation is applied for settling of precipitates
Clear Effluent is collected from the surface by a single sided weir
Collected Effluent is sent to discharge point

14. Sludge Management
Sludges, collected from clarifiers, are managed seperately
Sand filters are used for sludge thickening
Thicken sludge is collected and disposed by IZAYDAS

15. Sand Filters

16. Discharge
IWW and DWW effluents are collected and mixed at discharge point
pH is controlled by a pH meter

17. Effluent Parameters
Measurements of effluent are made for discharge standards
Discharged water characteristcs are proper for the standards

18. Design Calculations
There are two types of treatment processes which include domestic wastewater and industrial wastewater
For domestic wastewater ;
Circular Aeration basin dimensions ;
diameter=6m
depth=6m

19. Circular sedimentation tank calculation
circular sedimentation tank dimensions;
diameter=3m
depth=2m
effluent launder=0.3m
Q=70m3/day = m3/sec
HRT=Volume / Q =14.1 m3 / (70 m3/d x d/24 hr) = 4.83 hr

20. One sided weir is used in treatment
Weir length = (D-2xeff.launder) x π = (3- 0.6) x π = 7,54 m
Weir loading = Q / L = (70 m3/d) / (7.54m) = 9.28 m3 /m.d
Surface loading calculation;
A = = =7 m2
Surface loading = Q / A =(70 m3/d) / 7 m2 =10 m3/ m2d

21. For industrial wastewater;
Q=120m3 / d = m3/sec
Circular rapid mixing unit basin;
Diameter=1 m
Depth=1m
Rectangular flocculation basin dimensions ;
Length=4.5m
Width=1.5m
Depth=2.5m

22. Circular Sedimentation basin Dimension;
Diameter = 4.5m
Depth=3m
Eff.launder=0.5 m
Rapid mixing unit calculation;
HRT= Volume / Q = (0.8 m3) / (120 m3/d x (d/24 hr) x( hr/ 60 min)) = 9.6 min 

23. Flocculation unit calculation;
Volume = Length x width x depth = 1.5 x 2.5 x 4.5 = m3
HRT= Volume / Q = ( m3) / (120 m3/d x (d/24 hr)) = hr
Sedimentation Unit calculations;
HRT= Volume / Q = (47.7 m3) / (120 m3/d x (d/24 hr) )= 9.54 hr

24. References
fs/library?l=/bref_chlor_alkali
[Brien-White, 1995]
[Ullmann’s, 1996]
[Stenhammar]
[Kirk-Othmer,1991]
[Lindley, 1997]

25. THANK YOU