Co+2/Klor İleri Oksidasyon Prosesi Vasıtasıyla Bemacid Blue Giderimi, Reaktif Radikallerin Tespiti ve Kinetik Çalışmalar

Year 2024, , 156 - 167, 01.03.2024

Mehmet Türkyılmaz

https://doi.org/10.21597/jist.1261438

Abstract

Çalışmada Bemacid Blue (BB) sentetik tekstil boyasının gideriminde oksidant olarak kullanılan klorun Co+2, Ultraviyole-C (UV-C) ve görünür ışık ile kombinasyonları oluşturularak en etkili proses seçilmiş ve optimizasyonu yapılmıştır. Deneyler sonucunda boya giderim verimi ve işletme maliyeti göz önüne alındığında Co+2/Klor prosesi seçilmiş ve C0: 50 mg/L BB (0.84mM), pH:3, klor: 0.8mM ve Co+2: 50µM 20 dk reaksiyon süresi optimum şartlarında %97.78 giderim verimine ulaşılmıştır. Proseste %46.1 katkı ile •OH en etkin ve baskın radikaldir, ancak reaktif klor radikallerinin (•Cl2-, •Cl ve •ClO (RCS – Reactive Chlorine Species)) %51.68 toplam katkı ile BB gideriminde etkin bir rol oynadığı belirlenmiştir. Optimum şartlarda gerçek tekstil atık suyu ile yapılan çalışmalar sonucunda, dalga boyu taramasında oluşan 1 ve 2 nolu ana piklerde sırasıyla %83.2 ve %88.6 oranında azalma gerçekleşerek etkin bir boya giderimi sağlanmıştır. Bununla birlikte, Behnajady–Modirshahla–Ghanbery (BMG) modeli için korelasyon katsayısı değeri (R2=0.9999), birinci ve ikinci derece modellerden daha yüksek olduğundan BB’nun Co+2/Klor prosesi ile giderimini açıklayan en iyi modeldir.

Keywords

Bemacid Blue, BMG kinetik, Co+2 iyon aktivasyonu, Reaktif klor radikalleri

Supporting Institution

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Project Number

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Thanks

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Bemacid Blue Removal by Co+2/Chlorine Advanced Oxidation Process, Detection of Reactive Radicals and Kinetic Studies

Abstract

In the study, the most effective process was selected and optimized by creating combinations of chlorine, which is used as an oxidant in the removal of BB synthetic textile dye, with Co+2, UV-C and visible light. Considering the dye removal efficiency and operating cost as a result of the experiments, the Co+2/Chlorine process was chosen. Under optimum operating conditions (C0: 50 mg/L BB (0.84mM), pH:3, chlorine: 0.8mM and Co+2: 50 µM 20 min reaction time), 97.78% removal efficiency was achieved. In the process, •OH is the most active and dominant radical with 46.1% contribution. However, it was determined that reactive chlorine radicals (•Cl2-, •Cl and •ClO) played an active role in BB removal with a total contribution of 51.68%. As a result of the studies carried out with real textile wastewater under optimum conditions, an effective dye removal was achieved by reducing the main peaks 1 and 2 in wavelength scanning, respectively, by 83.2% and 88.6%. However, since the correlation coefficient value (R2=0.9999) for the Behnajady–Modirshahla–Ghanbery (BMG) model is higher than the first and second order models, it is the best model to explain the removal of BB by the Co+2/Chlorine process.

Keywords

Reactive chlorine radicals, Bemacid Blue, BMG kinetic, Co+2 ion activation

Project Number

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