Fındık kabukları ile farklı model boyaların gideriminin kinetik ve termodinamik incelemesi

Bu çalışmada, tekstil endüstrisi atıksularının giderimi için Türkiye’ye katma değer sağlayacak pratik bir yaklaşım hedeflenmiştir. Bu bağlamda, ülkemizin dünya birincisi olduğu fındık üreticiliği göz önüne alınarak zararsız bir atık olan fındık kabuğu, laboratuvar ortamında hazırlanmış sentetik atık suların gideriminde değerlendirilmiştir. FTIR, SEM-EDS ve XRD analizleri ile gerçekleştirilen karakterizasyon çalşmaları, FK’nin organik bağ yapısı, morfolojik yapısı ve elementel içeriği ortaya konulmuştur. Çalışmanın devamında kısmında farklı tekstil model boyalarla hazırlanan sentetik çözeltilerin farklı işletme şartlarında FK ile giderimi incelenmiştir. Bu bağlamda; başlangıç pH’ı, başlangıç boya konsantrasyonu, adsorbent konsantrasyonu, reaksiyon süresi ve sıcaklığın etkileri incelenmiştir. Kinetik analizler, adsorpsiyonun sözde ikinci mertebe model ve partiküler arası difüzyonun kontrolünde gerçekleştiğini göstermiştir. Denge çalışmaları, Langmuir izoterminin süreci daha iyi ifade ettiğini göstermiştir. Termodinamik parametreler ise, sürecin endotermik olduğunu, kendiliğinden gerçekleştiğini ve sıcaklıla artan bir affiniteye sahip olduğunu göstermiştir.

Anahtar Kelimeler:

Reaktif boya, Fındık kabuğu, Kinetik, Termodinamik

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