Methylene Blue Removal of Fixed-Bed Column Reactor with Pumice and nZVI-Pumice: Experimental and Modeling Study (Pomza ve nSDD-Pomza ile Sabit Yataklı Kolon Reaktörde Metilen Mavisi Giderimi: Deneysel ve Modelleme Çalışması)
Articles > Article · 2019
Authors: MESUT GENİŞOĞLU, AYŞEGÜL YAĞMUR GÖREN, ESİN BALCI, Yaşar Kemal RECEPOĞLU, HATİCE ESER ÖKTEN
Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Other Refereed National Journals, National, TR DİZİN (ULAKBİM), 2019, vol 23, pp 298-305
DOI: 10.19113/sdufenbed.538084
Summary
Nano zero-valent iron (nZVI) emerges as a low cost and eco-friendly adsorbent to treat textile wastewater, which is rich in dye content. However nZVI particles can easily agglomerate in aqueous environment due to electrostatic interaction, decreasing their treatment efficiency. Therefore pumice, a low-cost and naturally found porous material with lower specific surface area (2m2/gr), can be used as support material to reduce agglomeration of nZVI. Treatment efficiencies of pumice/nZVI packing (10:0 and 9:1 (w/w)) in column reactor for specified initial methylene blue concentrations (25, 50, 75 and 100 mg/L) were investigated in this study. Adsorption capacities of the adsorbents were calculated as 2.8 and 4.2 mg/g-adsorbent, respectively at 100 mg/L initial methylene blue concentration. Mixed bed column performed significantly better than its pumice-only counterpart for low initial concentrations. Thomas adsorption model was applied to experimental results with a moderate to high predictive power.