CHLOR ALKALI INDUSTRY

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22 Φεβ 2014 (πριν από 3 χρόνια και 5 μήνες)

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CHLOR ALKALI

INDUSTRY


Uğur KÜÇÜKBAYRAK

Mesut Emrah ÖZTÜRK

Nazenin GÜRE

Sedat KEKEÇ

1)
Introduction


Koruma

Industry


K
oruma

Tarım



E
stablished

in 1949



Derince

chloralkali

plant
in
1963



Changed hand to
Vefa

İ
brahim

Araci

in 1994


A
ble

to
provid
e,




Chloralkali
,


A
griculture
,


T
ransportation


C
leaning(products to clean)


P
ackaging



T
ourism

F
ields


E
nvironmental

balance
(
wit
h St. of
ISO 14001.
)


Koruma

is the first company


Having EPKD
electricity producer
licence


P
roduces

energy
via

natural gas in
Derince


Koruma’s Envioronment View


Using E
nergy

efficient
&

E
nvironmentally


friendly technologies


Using scare sources Efficiently



1.1)

Effluens

from
Koruma

Industry


Cloralkali
Industry Wastewater
Efflu
e
nt

Types



Domestic Wastewater



Industrial Wastewater


Koruma

Industry produce


Q (
Domestic W
W

)=

70 m3 /d


Q (
Industrial W
W)

=

120m3 /d.



1.2)
Domestic Wastewater
Treatment System


Flow Diagram

Domestic Wastewater Treatment Plant

Aeration Tank (Aerobic Reactor)



Domestic Wastewater
Sedimentation Tank


Baffles At the Effluent DWW

1.3 Industrial Wastewater Treatment


It is consist of;


Coagulation by a rapid mix


Flocculation Tank


Sedimentation of Flocs


Effluent Discharge


Rapid Mixing


Ferric Chloride is added for floc
formation


Polyelectrolyte for aid


Sulfide Chemical (presence of Cl
-
)

Flocculation


Floc Formation Takes Place


High HRT value for better contact time


Power is supplied by a slow mix



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


Sludge Management



Sludges, collected from clarifiers, are
managed seperately


Sand filters are used for sludge thickening


Thicken sludge is collected and disposed
by IZAYDAS


Sand Filters

Discharge


IWW and DWW effluents are collected
and mixed at discharge point


pH is controlled by a pH meter

Effluent Parameters


Measurements of effluent are made for
discharge standards


Discharged water characteristcs are
proper for the standards


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




Circular

sedimentation

tank
calculation


circular

sedimentation

tank
dimensions
;


diameter
=3m


depth
=2m


effluent

launder
=0.3m


Q=70m
3
/
day

= 0.00081m
3
/
sec


HRT=
Volume

/ Q =14.1 m
3

/ (70 m
3
/d x
d/24
hr
) = 4.83
hr



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 m
3
/d) /
(7.54m) = 9.28 m
3

/
m.d


Surface

loading

calculation
;



A = = =7 m
2



Surface

loading

= Q / A =(70 m
3
/d) / 7
m
2

=10 m
3
/ m
2
d



For

industrial

wastewater
;


Q=120m
3
/ d = 0.014 m
3
/
sec



Circular

rapid

mixing

unit

basin
;


Diameter
=1 m


Depth
=1m


Rectangular

flocculation

basin

dimensions

;


Length
=4.5m


Width
=1.5m


Depth
=2.5m



Circular

Sedimentation

basin

Dimension
;


Diameter

= 4.5m


Depth
=3m


Eff
.
launder
=0.5 m


Rapid

mixing

unit

calculation
;


HRT=
Volume

/ Q = (0.8 m
3
) / (120 m
3
/d
x (d/24
hr
) x(
hr
/ 60
min
)) = 9.6
min




Flocculation

unit

calculation
;


Volume

=
Length

x
width

x
depth

= 1.5 x
2.5 x 4.5 =16.875 m
3


HRT=
Volume

/ Q = (16.875 m
3
) / (120
m
3
/d x (d/24
hr
)) = 3.375
hr


Sedimentation

Unit

calculations
;


HRT=
Volume

/ Q = (47.7 m
3
) / (120 m
3
/d
x (d/24
hr
) )= 9.54
hr


References



http
:
//circa
.
europa
.
eu/Public/irc/env/ippc_bre
fs/library?l=/bref_chlor_alkali


[Brien
-
White,

1995
]


[
Ullmann’s
,

1996
]


[
Stenhammar
]


[Kirk
-
Othmer,
1991
]


[Lindley,

1997
]


[
Ullmann’s
,

1996
]


www
.
koruma
.
com



www
.
wikipedia
.
com






THANK
YOU