Water is supplied to Kathane Drinking Water Treatment Plants
established on the back of Kathane district being one of the
historical regions of stanbul from Terkos Lake and Alibeyky Dams.
Aeration Unit The first unit that raw water taken from the dam and
lake enters to the plants is the Aeration Unit. Pre-Ozonization
Unit Microorganisms in the water in Pre-Ozonization Unit are
eliminated and taste and odor in water are corrected. Raw Water
Inlet Construction Water is taken to Raw Water Inlet Construction
of the plant via steel water pipelines of 2200 mm. Following pre-
chlorination here water is passed through water energy break
wall.
Slide 5
Fast Mixing Unit Slow mixing Unit Setting Unit Colloidal
substances loads of which are neutralized in fast mixer with the
effect of Aluminum Sulphate are taken to mixing unit to become
ball. Water is mixed slowly and colloidal substances are met each
other. Setting unit is the section where colloidal materials being
flock in slow mixing unit and being in the raw water is seperated
from water. Sulphate
Slide 6
The water coming from setting is conveyed to filter unit after
being chlorinated in four seperate channels. The purpose of
chlorination is to provide manganese oxidation and to prevent
chlorine by products formation. There are 20 fast sand filters each
one of which consists of two divisions and being 108 m 2 surface
areas. There is sand with 1 m height and 0,8- 1,25 mm diameter
performing filtration process. The system suspending the sand is
porous concrete obtained from the gravel and cement mixture.
Filters blocked are subjected to backwash operation by applying air
and water from the lower part. Engine Filtration Unit
Slide 7
Clean Water Tank The purified water coming from the Filter Unit
is taken to 15000 m 3 and 30000 m 3 clean water reservoirs after
being subject to final chlorination NETWORK After clarified water
in Kathane Drinking Water Treatment Plants is collected in
reservoirs, it is supplied to the supply network. And, this is the
last of the adventure of water up to our school. Clean water
reservoir Our School
Slide 8
We got Ka thane Water Treatment Plants water quality reports.
The reports prove that the result is healthy and drinkable water.
The healthy and drinkable water travels a long way to come to our
school from Ka thane Water Treatment Plants. So how can we be stil
sure of the drinking quality of water, coming from the taps in our
school. We searched and learned that the pipes in stanbul were
changed into polyethylene 2002. The pipes in the location of our
school and inside the school were changed into polyethylene in
2006. But our schools conctruction is very old and therefore there
are some iron pipes that couldnt be changed. We dont drink water
from the taps and the school pay money for spring water stored in
carboys. Are these carboys healthy ? We wont be able to test every
carboy, so our aim is to obtain healthy drinkable tap water in our
school.
Slide 9
In our research trip to SK Water Treatment Plants, we are
thankful to environmental engineer Nazl Sezin Korkut and machine
technician Yavuz Karaca for their interest to our project and the
help for the information.