Aktif Karbon Destekli Nano Boyutlu Sıfır Değerlikli Demir ile Sulu Ortamlardan Fosfat Giderimi: Cevap Yüzey Yöntemi ile İşletme Parametrelerinin Optimizasyonu

Yıl 2019, , 30 - 41, 30.09.2019

Müslün Sara Tunç

https://doi.org/10.35193/bseufbd.560400

Öz

Bu çalışmada, sulu faz borhidrür
indirgeme metodu ile aktif karbon destekli nano boyutlu sıfır değerikli demir
(AC-nZVI) partikülleri sentezlenmiş ve sentezlenen AC-nZVI partikülleri sulu
ortamlardan fosfat gideriminde kullanılmıştır. Fosfat giderim verimi üzerinde
çözelti pH’ı, AC-nZVI miktarı, başlangıç fosfat konsantrasyonu ve temas süresi
işletme parametrelerinin etkilerini ve optimum şartları belirlemek için cevap
yüzey metodu (CYM) uygulanmıştır. Deneysel dizaynda ve sonuçların analizinde
merkezi kompozit dizaynı (MKD) kullanılmıştır. Varyans analizi (ANOVA)
sonuçlarına göre, ikinci dereceden polinominal model istatistiksel olarak
anlamlı (P=0.0002) ve determinasyon katsayısı (R²) 0.8735 olarak
bulunmuştur. AC-nZVI ile maksimum fosfat giderimi için optimum şartlar pH 3.09,
AC-nZVI miktarı 0.59 g/L, fosfat konsantrasyonu 30.69 mg P/L ve temas süresi
66.58 dakika olarak belirlenmiştir. Bu çalışmanın sonuçları, atıksulardan
fosfat gideriminde AC-nZVI’nın etkili bir adsorbent olarak kullanılabileceğini
göstermiştir.

Anahtar Kelimeler

Adsorpsiyon, Fosfat, AC-nZVI, Optimizasyon, Cevap Yüzey Yöntemi

Kaynakça

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