İndirgen Şartlarda Sıfır Değerlikli Demir ile Metronidazol ve Nitrat Giderimi

Yıl 2018, Cilt: 30 Sayı: 1, 79 - 86, 01.03.2018

Özge Hanay , Cemile Sertdemir Burçin Yıldız

Öz

Bu
çalışmada, su kaynaklarında kirliliğe neden olabilen nitrat ve metronidazolun
(MNZ) sıfır değerlikli nano demir (nZVI) ile birlikte giderimi indirgen şartlar
altında araştırılmıştır. Optimum giderim verimini sağlayan pH, nZVI dozajı,
sıcaklık, başlangıç nitrat ve MNZ konsantrasyonu gibi parametreler
belirlenmiştir. nZVI: 1 g/L, pH:7, T:30 ⁰C ve 20 mg/L nitrat ve 60
mg/L MNZ başlangıç konsantrasyon değerlerinde her iki kirletici için en yüksek
giderim verimleri elde edilmiştir. Deney serilerinin sonunda gerçekleştirilen
desorpsiyon ve ara ürün belirleme çalışmalarında nZVI ile MNZ ve nitratın giderim
mekanizmasının adsorpsiyondan ziyade parçalanma olduğu ve oluşan ara ürünlerinde
nZVI yüzeyine adsorplanma eğiliminde olduğu düşünülmüştür.

Anahtar Kelimeler

Nitrat, Metronidazol, Su Kirliği, Sıfır Değerlikli Demir

Kaynakça

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