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Drinking Water Treatment Plants Water Adventure of İstanbul.
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DrinkingWaterTreatmentPlants WaterAdventure of İstanbul
WATER ADVENTURE OF İSTANBULİstanbul acquiringwatercityidentitywithBosphorusand Golden Horn has experiencedseriouswatertroublesfrom time to time since it is far awaydrinkingwatersourcesandthepopulation of city has beenincreasing as thedaygoes on. Rulers of eachcivilizationestablished in İstanbul weredealtwithsolvingthewater problem of thecity. Largewaterpipelineswerebuilt; hugecisternswerebuiltduring Roman Periodtobringwatertothehistoricalpeninsula. InaditiontorepairingwaterwaysduringOttomanPeriod, newwatersourcesweresearchedandwatertrouble of thecitywasterminatedforthatperiod
İstanbul grewincreasingly. Itsbordersextended. Villagestransformedintotowns, townstransformedintoalmostbigcities. Inparallelwith it, since necessaryinvestmentscould not be done, thewatertrouble of thecityincreasedextremelypeoplewaited in waterqueueswithdrums. İSKİ gotintotheacttoterminateillfortune of İstanbul. İSKİ builtdamns, hugewaterpipelines, treatmentplantsequippedwiththecutting-edgetechnology, watertanks, elevationcentersandthousands of kilometerdrinkingwatersupply network tobringnewwatersourcesto İstanbul. One of themostimportantparts of thisadventuremeetingthepeople of İstanbul withdrinkable, abundantandhealthywater is Kağıthane DrinkingWaterTreatmentPlants. Wemade a researchtriptowatertreatmentplantswherewatercomestoourschool.
Microorganisms in thewater in Pre-OzonizationUnitareeliminatedandtasteandodor in waterarecorrected. Water is suppliedto Kağıthane DrinkingWaterTreatmentPlantsestablished on theback of Kağıthane districtbeingone of thehistoricalregions of İstanbul fromTerkos Lake andAlibeyköyDams. Thefirstunitthatrawwatertakenfromthe dam and lake enterstotheplants is theAerationUnit. Water is takentoRawWaterInletConstruction of theplantviasteelwaterpipelines of 2200 mm. Followingpre-chlorinationherewater is passedthroughwaterenergy break wall. AerationUnit RawWaterInletConstruction Pre-OzonizationUnit
Colloidalsubstancesloads of whichareneutralized in fastmixerwiththeeffect of AluminumSulphatearetakentomixingunittobecomeball. Water is mixedslowlyandcolloidalsubstancesare met eachother. Substanceswithcolloidalstructurebeing of negativeload in fastMixingConstructionaremixedwithpositiveloadedAluminumSulphateionsaddedtothewaterhomogeneously. FastMixingUnit SlowmixingUnit Settingunit is thesectionwherecolloidalmaterialsbeingflock in slowmixingunitandbeing in therawwater is seperatedfromwater. Sulphate SettingUnit
Thewatercomingfromsetting is conveyedtofilterunitafterbeingchlorinated in fourseperatechannels. Thepurpose of chlorination is toprovidemanganeseoxidationandtopreventchlorinebyproductsformation. Thereare 20 fastsandfilterseachone of whichconsists of twodivisionsandbeing 108 m2 surfaceareas. There is sandwith 1 m heightand 0,8-1,25 mm diameterperformingfiltrationprocess. Thesystemsuspendingthesand is porousconcreteobtainedfromthegravelandcementmixture. Filtersblockedaresubjectedtobackwashoperationbyapplyingairandwaterfromthelowerpart. Engine FiltrationUnit
Afterclarifiedwater in Kağıthane DrinkingWaterTreatmentPlants is collected in reservoirs, it is suppliedtothesupply network . ThepurifiedwatercomingfromtheFilterUnit is takento 15000 m3and 30000 m3cleanwaterreservoirsafterbeingsubjectto final chlorination Cleanwaterreservoir NETWORK OurSchool And, this is thelast of theadventure of wateruptoourschool. CleanWater Tank
Wegot Kağıthane WaterTreatmentPlants’ waterqualityreports. Thereportsprovethattheresult is healthyanddrinkablewater. Thehealthyanddrinkablewatertravels a longwaytocometoourschoolfrom Kağıthane WaterTreatmentPlants. Sohow can we be stil sure of thedrinkingquality of water, comingfromthetaps in ourschool. Wesearchedandlearnedthatthepipes in İstanbul werechangedintopolyethylene 2002. Thepipes in thelocation of ourschooland inside theschoolwerechangedintopolyethylene in 2006. But ourschool’sconctruction is veryoldandthereforetherearesomeironpipesthatcouldn’t be changed. Wedon’tdrinkwaterfromthetapsandtheschool pay moneyforspringwaterstoredin carboys. Arethesecarboyshealthy ? Wewon’t be ableto test everycarboy, so ouraim is toobtainhealthydrinkable tap water in ourschool.
Inourresearchtripto İSKİ WaterTreatmentPlants, wearethankfultoenvironmentalengineer Nazlı Sezin Korkut andmachinetechnician Yavuz Karaca’ fortheirinteresttoourprojectandthehelpfortheinformation.