Research Article Simulation for Supporting Scale-Up of a Fluidized Bed Reactor for Advanced Water Oxidation Farhana Tisa, Abdul Aziz Abdul Raman, and Wan Mohd Ashri Wan Daud Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia Correspondence should be addressed to Abdul Aziz Abdul Raman; azizraman@um.edu.my Received 12 May 2014; Revised 22 July 2014; Accepted 5 August 2014; Published 17 September 2014 Academic Editor: Mohamed Sarakha Copyright © 2014 Farhana Tisa et al. Tis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Simulation of fuidized bed reactor (FBR) was accomplished for treating wastewater using Fenton reaction, which is an advanced oxidation process (AOP). Te simulation was performed to determine characteristics of FBR performance, concentration profle of the contaminants, and various prominent hydrodynamic properties (e.g., Reynolds number, velocity, and pressure) in the reactor. Simulation was implemented for 2.8 L working volume using hydrodynamic correlations, continuous equation, and simplifed kinetic information for phenols degradation as a model. Te simulation shows that, by using Fe 3+ and Fe 2+ mixtures as catalyst, TOC degradation up to 45% was achieved for contaminant range of 40–90 mg/L within 60 min. Te concentration profles and hydrodynamic characteristics were also generated. A subsequent scale-up study was also conducted using similitude method. Te analysis shows that up to 10 L working volume, the models developed are applicable. Te study proves that, using appropriate modeling and simulation, data can be predicted for designing and operating FBR for wastewater treatment. 1. Introduction Advanced oxidation processes (AOPs) have emerged to be one of the alternatives for treating efuents containing very toxic organic compounds [1]. Te use of advanced oxidation processes in treating wastewater containing refractory and inhibitory organics has attained a good recognition over the past few decades [2, 3]. High capital cost and suitable reactor design (e.g., photo catalytic or heterogeneous catalytic) are required for practical applications of AOPs [4]. Combination of fuidized bed reactor with advanced oxidation processes (AOPs) has been recently studied by many researchers [5, 6]. Advanced oxidation processes completely mineralize recalcitrant compound and may produce nonhazardous by- products. Heterogeneous catalytic system has been found to be extremely efcient among all AOPs in degradation of complex chemical compounds and other industrial wastes [7]. Te application of Fenton’s reagent as an oxidant for wastewater treatment is a smart choice due to wide availabil- ity of iron, easier handling of nontoxic hydrogen peroxide, and efcient decomposition to environmentally safe products [8, 9]. Tere are many recent studies on the use of fuidized bed reactor for wastewater treatment using photo Fenton oxidation [10–12], heterogeneous Fenton oxidation [13, 14], ozone [15, 16], and homogeneous Fenton oxidation [17, 18]. In fuidized bed reactors, the solid particles fuidized by liquid or gas act as a fuid through the reactor. Compared to other types of reactors (e.g., fxed bed reactors), fuidized bed reactors have a number of advantages. Fluidized bed reactors can be considered as an improvement over the traditional water treatment methods associated with advanced oxidation pro- cesses for pollutant degradation. In this work an assessment was done by simulating FBR for treating wastewater using Fenton reaction. Operation of FBR has confrmed many advantages that include high degradation efciency, lesser reaction time and better catalyst recirculation [19]. However, there are some challenges with fuidized bed reactors. Fluidized beds are a heterogeneous mixture of fuid and solid particles; as a result proper description of the system is difcult to defne. In FBR heterogeneous catalytic process, the oxidant (H 2 O 2 ) is decomposed to highly reactive hydroxyl radicals in a catalytic sequence with ferrous ion as a catalyst [20]. Although FBR- AOPs have been studied much, few recent studies are avail- able on modeling of FBR-AOPs and there is a lack of study in the prediction of performance of full scale FBR-AOP systems. Hindawi Publishing Corporation e Scientific World Journal Volume 2014, Article ID 348974, 17 pages http://dx.doi.org/10.1155/2014/348974