Response surface analysis of removal of a textile dye by a Turkish coal powder
ADVANCES IN ENVIRONMENTAL RESEARCH-AN INTERNATIONAL JOURNAL, cilt.2, sa.4, ss.291-308, 2013 (ESCI)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 2 Sayı: 4
- Basım Tarihi: 2013
- Doi Numarası: 10.12989/aer.2013.2.4.291
- Dergi Adı: ADVANCES IN ENVIRONMENTAL RESEARCH-AN INTERNATIONAL JOURNAL
- Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI)
- Sayfa Sayıları: ss.291-308
- Anahtar Kelimeler: adsorption, coal, organic dye, experimental design, optimization
- Atatürk Üniversitesi Adresli: Evet
Özet
In the present study, an experimental design methodology was used to optimize the adsorptive removal of Basic Yellow 13 (BY13) using Turkish coal powder. A central composite design (CCD) consisting of 31 experiments was employed to evaluate the simple and combined effects of the four independent variables, initial dye concentration (mg/L), adsorbent dosage (g/L), temperature (inverted perpendicular C) and contact time (min) on the color removal (CR) efficiency (%) and optimizing the process response. Analysis of variance (ANOVA) showed a high coefficient of determination value (R-2 = 0.947) and satisfactory prediction of the polynomial regression model was derived. Results indicated that the CR efficiency was not significantly affected by temperature in the range of 12- 60 degrees C. While all other variables significantly influenced response. The highest CR (95.14%), estimated by multivariate experimental design, was found at the optimal experimental conditions of initial dye concentration 30 mg/L, adsorbent dosage 1.5 g/L, temperature 25 degrees C and contact time 10 min.