SULARDAN ULTRASOUND, FENTON VE SONO-FENTON PROSESLERİ İLE RENK GİDERİMİ

Tekstil endüstrisi atıksuları arıtımı içermiş olduğu sentetik boyalar, karmaşık yapılı organik kirleticiler, yüzey aktif maddeler ve diğer toksik kimyasal maddeler nedeniyle geleneksel arıtım yöntemleriyle arıtılması oldukça zordur. Tekstil endüstrisi yüksek renk, kimyasal oksijen ihtiyacı (KOİ), pH, sıcaklık ve toksik kimyasallar nedeniyle çevre ve insan sağlığı üzerinde ciddi sorunlara sebep olduğundan ileri arıtım su ve atıksu arıtım yöntemleriyle arıtılması gerekmektedir. Bu çalışmada Basic Red 29 boyası kullanılarak hazırlanan model atıksu Ultrasound (US), Fenton (F) ve Sono-Fenton (US-F) yöntemleriyle arıtılmıştır. Ultrasonik arıtım çalışmaları 22 kHz ultrasonik frekansta 5 mL/dk debi işletilen sürekli reaktörde 135 W güç uygulanarak gerçekleştirilmiştir. Ultrasonik prosesin giderim verimini arttırmak yönünde bir etki gösterip göstermediğini belirlemek üzere sisteme dışarıdan hidrojen peroksit ilavesi yapılmıştır. Fenton (F) prosesi ile renk giderim etkinliğinin belirlenmesi amacıyla 1000 mg/L hidrojen peroksit derişimi sabit tutularak sisteme ilave edilen Fe+2 derişiminin giderim performansına olan etkisi belirlenmiştir. Hibrit Sono-Fenton (US-F) arıtım çalışmalarında ultrasound kullanımı ile sistemin giderim performansının %90’nın üzerine çıkartırken aynı giderim için tekil Fenton prosesinde kullanılması gereken Fe+2 derişiminin 1/5 oranında azaltılabileceği belirlenmiştir.

Anahtar Kelimeler:

Renk giderimi, Ultrasound, Fenton, Sono-Fenton, Basic Red

COLOR REMOVAL FROM WATER WITH ULTRASOUND, FENTON AND SONO-FENTON PROCESSES

Treatment of textile industry wastewater is very difficult by conventional treatments methods because this industry wastewater contains synthetic dyes, complex organic pollutant, surfactants and other toxic substances. Textile industry wastewater needs to be treated by advanced water and wastewater treatment methods because it causes serious problems environment and human health due to high color, chemical oxygen demand (COD), pH, temperature and toxic chemicals. In this study, model wastewater prepared by using Basic Red 29 dye was treated by Ultrasound (US), Fenton (F) and Sono-Fenton (US-F) methods. Ultrasonic treatment studies were carried out with a power of 135 W in a continuous flow reactor operating at a flow rate of 5 mL / min and 22 kHz ultrasonic frequency. Hydrogen peroxide was added to the system to determine whether it had an effect to improve the removal efficiency on the ultrasonic process. In order to determine the color removal efficiency with the Fenton (F) process, 1000 mg / L hydrogen peroxide concentration was fixed and the effect of the added Fe + 2 concentration on the removal performance was determined. It has been determined that the use of ultrasound increases the removal performance of the system to over 90% in hybrid Sono-Fenton (US-F) treatment, when required Fe +2 concentration in a single Fenton process can be reduced by 1/5 for the same removal efficiency.

Keywords:

Color removal, Ultrasound, Fenton, Sono-Fenton, Basic Red,

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