OPTIMIZATION AND PREDICTION OF PHOTOCATALYTIC PROCESS OF NANO TITANIA IMMOBILIZED ON CONCRETE SURFACE FOR TREATING PHENOLIC WATER

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DELNAVAZ M.; AYATI B.; GANJIDOUST H.; SANJABI S.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2014 | Volume:9 | Issue:3 (28) Page(s): 75-87

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Information Journal Paper

Title

OPTIMIZATION AND PREDICTION OF PHOTOCATALYTIC PROCESS OF NANO TITANIA IMMOBILIZED ON CONCRETE SURFACE FOR TREATING PHENOLIC WATER

Author(s)

DELNAVAZ M. | AYATI B. | GANJIDOUST H. | SANJABI S. | Issue Writer Certificate

Keywords

TAGUCHI METHODQ3

TITANIUM DIOXIDEQ3

CONCRETEQ2

ARTIFICIAL NEURAL NETWORKQ2

MODELQ2

Abstract

The optimizartion of photocatalytic process by TAGUCHI METHOD and the prediction of removal efficnecy by ARTIFICIAL NEURAL NETWORK were investigated in this research. Immobilized photocatalytic reactor was irradiated with TiO2 by UV-A lamps to produce hydroxyl radicals for degradation of phenolic synthetic wastesater. TAGUCHI METHOD and L16 orthogonal array for experimental planning was used for determination of optimum conditions including initial phenol concentration (50-500 mg/L), UV lamps power (8-60 W), pH (4-12), TiO2 concentration (20-80 g/m2), and UV lamp distance from CONCRETE surface (5-20 cm). The results showed that influent phenol concentration and solution pH had the highest effect on the removal efficiency. The optimum conditions were obtained for influent phenol concentration of 50 mg/L, pH of 12, UV lamp of 60 W, titania amount of 80 g/m2, and UV lamp distance to CONCRETE surface of 10 cm. Prediction of photo catalytic process performance by ARTIFICIAL NEURAL NETWORK showed that the best result was obtained at the structure of (5-6-4-1). Transfer functions for this MODEL were Gaussian, Hyperbolic Tangent, and Sigmoid for hidden layer 1 and 2 and output layer, respectively. The difference between measured and predicted values of output nodes was less than 5%.

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APA: Copy

DELNAVAZ, M., AYATI, B., GANJIDOUST, H., & SANJABI, S.. (2014). OPTIMIZATION AND PREDICTION OF PHOTOCATALYTIC PROCESS OF NANO TITANIA IMMOBILIZED ON CONCRETE SURFACE FOR TREATING PHENOLIC WATER. IRAN-WATER RESOURCES RESEARCH, 9(3 (28)), 75-87. SID. https://sid.ir/paper/99860/en

Vancouver: Copy

DELNAVAZ M., AYATI B., GANJIDOUST H., SANJABI S.. OPTIMIZATION AND PREDICTION OF PHOTOCATALYTIC PROCESS OF NANO TITANIA IMMOBILIZED ON CONCRETE SURFACE FOR TREATING PHENOLIC WATER. IRAN-WATER RESOURCES RESEARCH[Internet]. 2014;9(3 (28)):75-87. Available from: https://sid.ir/paper/99860/en

IEEE: Copy

M. DELNAVAZ, B. AYATI, H. GANJIDOUST, and S. SANJABI, “OPTIMIZATION AND PREDICTION OF PHOTOCATALYTIC PROCESS OF NANO TITANIA IMMOBILIZED ON CONCRETE SURFACE FOR TREATING PHENOLIC WATER,” IRAN-WATER RESOURCES RESEARCH, vol. 9, no. 3 (28), pp. 75–87, 2014, [Online]. Available: https://sid.ir/paper/99860/en

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