Neşe Ertugay

• Professor (Assistant) at Erzincan University

The degradability of an azo dye, Basic Blue 9 (BB9), by heterogeneous sonocatalytic, photocatalytic, and sonophotocatalytic oxidation process was examined using simultaneous irradiation of UV‐C at 254 nm and power ultrasound at 20 kHz accompanied with a heterogeneous catalyst zinc oxide (ZnO) in the study. The effect of ZnO dose and initial dye con...

In this study, effect of pH by Fenton-like with zero-valent iron (ZVI) process, advanced oxidation process in the leachate treatment, was investigated. The effect of pH value on colour and COD removal from leachate was determined at five initial pH values, 2.0, 2.5, 3.0, 3.5 and 4.0 (ZVI = 0.05 g/L, H2O2 = 150 mg/L). The highest colour and COD yiel...

The optimal conditions for treatment of leachate were determined as pH = 2.5, Fe2+= 2 mg/L and H2O2= 100 mg/L. Under the optimal conditions, approximately 90% color (at 620 nm), 84% color (at 525 nm), 74% color (at 436 nm) and 47.8% COD removal efficiency from leachate were achieved after 20 min of reaction. Depending on the results obtained experi...

The sono, photo, and sonophotocatalytic degradations of Direct Blue 71 (DB71) in the presence heterogeneous TiO2 catalyst were studied at 20 kHz using ultrasonic (US) power of 95 W and aqueous temperature of 20°C for 20 min. The effects of various operational parameters such as the concentration of the dye, pH, and amounts of catalysts on the sonoc...

Walnut wood shavings used in experiments is an industrial waste which is relatively abundant and inexpensive material that has been extensively investigated as adsorbents for removing contaminants from wastewater. In this study, the walnut wood shavings was tested for its ability to remove Direct Red 28 from aqueous solution by column experiments....

The sono, photo and sonophotacatalytic degradation of Direct Blue 71 (DB71) accompanied by heterogeneous ZnO catalysts were studied by using the ultrasonic power of 95W at 20 kHz and aqueous temperature of 20 degrees C within 20 min. The effects of various experimental parameters such as the dye concentration, pH and amount of catalyst on the sonoc...

Walnut wood shavings used in experiments is an industrial waste which is relatively abundant. Inexpensive materials have been extensively investigated as adsorbent for removing contaminants from wastewater. In this study, the walnut wood shavings was tested for its ability to remove Direct Red 28 from aqueous solution by column experiments. All exp...

The sonocatalytic degradation of Direct Blue 71 (DB71) azo dye has been studied in the presence of low-frequency ultrasound (20kHz). An initial concentration of 50mgL(-1) of dye, within the range of typical concentration in textile wastewaters, was used. Batch sorption studies were conducted to study the effects of various parameters such as Zero-V...

Advanced oxidation of an azo dye, Basic Blue 9 (BB9) by Fenton oxidation was investigated in batch experiments. The UV-vis spectral changes of in aqueous solution during Fenton process were studied. It was easier to destruct the azo linkage group than to destruct the aromatic rings of (BB9) by Fenton process. The effects of different reaction param...

In this paper, degradation of Direct Blue 71 (DB71) by Fenton’s oxidation process was investigated. The effect of initial pH, dosages of Fe2+ and H2O2, dye concentration and temperature on the color and Chemical Oxygen Demand (COD) removal was studied in a batch reactor. The optimal conditions for the decolorization and COD removal of DB71 were det...

In this study, biosorption of Cr (VI) ion was investigated by using biomass of Agaricus bisporus (a species of mushroom) in a temperature and shaking speed controlled shaker. The effect of shaking speed, biomass concentration, initial metal ion concentration and initial pH on biosorption yield was determined and the fitness of biosorption data for...