Hidrojel Esaslı Kompozit Kullanılarak Naftol Yeşili B içeren Atıksuların Arıtımında Ortam Parametrelerinin Etkisi

Bu çalışmada, EuCl3 ile katkılanmış poli (4-vinilpridin-ko-akrilamid) {P(4-VP-ko-AAm)/EuCl3} hidrojel kompozit adsorbent olarak kullanılarak atıksulardan naftol yeşili B boyasının giderim verimliliği araştırılmıştır. Naftol yeşili B adsorpsiyon verimliliğinin pH, adsorbent madde miktarı, başlangıç naftol yeşili B boya konsantrasyonu, sıcaklık ve temas süresi gibi değişkenlere bağımlılığı kesikli sistemde incelenmiştir. En yüksek giderim verimi 30 mg/L başlangıç naftol yeşili B konsantrasyonu, 0,05 g/100 mL P(4-VP-ko-AAm)/EuCl3 dozajı, pH=5,42 ve 25 °C sıcaklıkta %98,40 olarak elde edilmiştir. Deneysel denge verileri Langmuir izoterm modeli ile daha iyi uyum sağlamıştır. Kinetik sonuçlar, adsorpsiyon prosesinin hız belirleme basamaklarından biri olarak iç difüzyon ile yalancı ikinci derece kinetiği ile tanımlanabileceğini göstermiştir. Elde edilen deneysel sonuçlar, adsorbent olarak P(4-VP-ko-AAm)/EuCl3 hidrojeli kullanılarak naftol yeşili B boyasının başarılı bir şekilde atıksulardan giderilebileceğini göstermiştir.

Anahtar Kelimeler:

Polimerik adsorbent, Adsorpsiyon, Naftol yeşili B, Kinetik parametre

The Effect of Environmental Parameters on the Treatment of Naphthol Green B Containing Wastewater Using Hydrogel Based Composite

In this study, the removal efficiency of naphthol green B dye from wastewater was investigated by using poly(4-vinylpyridine-co-acrylamide) {P(4-VP-co-AAm)/EuCl3} hydrogel composite adsorbent doped with EuCl3. The dependence of naphthol green B adsorption efficiency on variables such as pH, amount of adsorbent substance, initial naphthol green B dye concentration, temperature and contact time were investigated in batch system. The highest removal efficiency was found as 30 mg/L initial naphthol green B concentration, 0.05 g/100 mL P(4-VP-co-AAm)/EuCl3 dosage, pH=5.42 and 98.40% at 25 °C. has been obtained. Experimental equilibrium data were in better agreement with the Langmuir isotherm model. The kinetic results showed that the adsorption process can be described by pseudo-second-order kinetics with internal diffusion as one of the rate-determining steps. Obtained experimental results showed that naphthol green B dye can be successfully removed from wastewater by using P(4-VP-co-AAm)/EuCl3 hydrogel as adsorbent.

Keywords:

Polymeric adsorbent, Adsorption, Naphtol green B, Kinetic parameter,

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