NFC Doplu Titania Fotokatalizörünün Çorlu Evsel Atıksu Giriş İnert KOİ fraksiyonu Üzerindeki Etkisinin Değerlendirilmesi

Bu makalede; antibiyotik, renk gibi gelişmekte olan kirleticilerin gideriminde bir fotokatalist olarak etkinliği kanıtlanmış NFC-doplu Titanyumun, Çorlu ilçesi evsel atıksu arıtma tesisi giriş suyunda biyolojik olarak parçalanamayan KOİ fraksiyonu üzerindeki etkisini belirlemeye yönelik deneysel çalışmalar yürütülmüştür. NFC-doplu titanyuma maruz kalan (ham + fotokatalist) ve maruz kalmayan (ham) atık suların SI ve XI bileşenlerinin belirlenmesi, süzülen atık su ile aynı konsantrasyonda hazırlanan glikoz reaktörüne paralel olarak çalışan hem ham hem de filtrelenmiş atıksu reaktörlerinde gerçekleştirilen deney yöntemine dayandırılmıştır. Bütün reaktörler kesikli modda 30 gün boyunca çalıştırılmıştır. Konvansiyonel karakterizasyon sonuçlarına göre, incelenen evsel ham atıksuyun toplam ve çözünmüş KOİ değerleri sırasıyla 535 mg/l ve 315 mg/l olarak ölçülmüş ve ST0/CT0 oranı %59 olarak hesaplanmıştır. Ayrıca, deneysel çalışma sonunda fotokatalist maruziyeti öncesi ve sonrası COD giderim verimi toplam KOİ için sırasıyla %67 ve %60, çözünmüş KOİ için %77 ve %75 olarak hesaplanmıştır. Her iki reaktördeki atıksuların inert KOİ fraksiyonları ise sırasıyla Çözünmüş İnert KOİ (SI0) için 23 mg /l ve 9 mg/l, Partiküler inert KOİ (XI0) için 56 mg /l ve 60 mg/l ve CI0/CT0 oranı da %15 ve %13 olarak hesaplanmıştır. Tüm bu sonuçlar göstermektedir ki; giriş ham atıksuyunun fotokataliste maruziyetinden 30 gün sonra, her iki reaktörde inert toplam giriş KOİ fraksiyonlarında önemli bir değişim gözlemlenmemesine ragmen, ham + fotokatalist atıksu reaktöründe çözünmüş inert kısmın %2 azaldığı, partiküler inert kısmın da %2 arttığı görülmüştür. Bunun nedeni NFC-doplu Titanyumun adsorbsiyon etkisi olarak düşünülebilir.

Anahtar Kelimeler:

Evsel atıksu, İnert KOİ fraksiyonu, NFC-doplu titanyum, Fotokatalist

Evaluation the Impact of NFC-dopped Titania Photocatalyst on Initial Inert COD Fraction of Çorlu Town Domestic Wastewater

In this paper, experimental studies were carried out to determine the impact of NFC dopped Titania, which is proven success in emerging pollutants such as antibiotic and color removal as a photocatalyst, on influent non-biodegradable COD fraction of Çorlu town domestic wastewater treatment plant. The determination of SI and XI components of wastewaters which are exposed (raw + photocatalyst) and unexposed (raw) to the NFC-dopped titania, are based on the experimental method carried out in both raw and filtred reactors which are run parallel to the glucose reactor prepared as same concentration with filtered wastewater. All reactors had been run thorugh 30 days in batch reactor mode. According to the results; total and soluble COD were measured as 535 mg/L and 315 mg/L, repectively and ST0/CT0 ratio was calculated as 59%. Furthermore, at the end of the experimental study, COD removal ratio for both reactors were calculated as 67 % and 60% for total COD and 77% and %75 for soluble COD. Inert COD fractions of both wastewaters were found for Soluble Inert COD (SI0) as 23 mg /L and 9 mg/L, particulate inert COD (XI0) as 56 mg /L and 60 mg/L and CI0/CT0 ratio was calculated as 15% and 13%. These all results shows that, after photocatalyst exposition, at the end of the 30 days, it was not observed any important variation in terms of inert total COD fraction between two reactors. Furthermore, it is understood that at the end of the 30 days, while soluble inert fraction reduces 2%, particulate inert fraction also increases 2%. The reason of this situation can be thought as the adsorbtion effect of NFC-dopped Titania.

Keywords:

Domestic waste water, Inert COD fraction, NFC-dopped titania, Photocatalyst,

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