ISSN: 2349-7300 ISO 9001:2008 Certified International Journal of Innovative Research in Engineering & Multidisciplinary Physical Sciences (IJIRMPS) Volume 2, Issue 5, October 2014 7 Abstract— Adsorption of various pollutants from effluent is very successful and widely studied area of research. The research has been reported in batch, packed bed and fluidized bed contactors. The modeling of the kinetic data is important aspect of this research. The modeling of the data obtained from the fixed column experiment is also very useful as it helps in predicting the break through curve; break point time and removal efficiency. These models need to be verified with the wide range of experimental results. Once these models are verified with experimental results, they are very useful as they save time and efforts. These model help in the design of column. The present review aims at presenting the research carried out on the modeling aspect of adsorption for removal of various pollutants from wastewater. Index Terms—parameters, break through curve, packed bed, efficiency. I. INTRODUCTION Adsorption in packed column is widely used and effective method for wastewater treatment [1]. The removal of dyes, organic matter, various heavy metals and many other pollutants has been reported to be highly efficient [2, 3, 4, 5, 6]. The prediction of effect of the various affecting parameters like bed depth, initial concentration, and flow rate is very important as it saves time and effort. Once the results of the models are verified with experimental data, these models can be used to predict the nature of breakthrough curves, mass transfer parameters etc. Also the column design can be carried out with the help of the data. The kinetic models for batch experiments and various models for breakthrough curves are studied by various investigators [7, 8]. The present review is aimed at summarizing these studies with respect to their accuracy and agreement with experimental data. Adsorption can be used for removal of various pollutants from wastewater as it has many advantages over other methods like simplicity, effectiveness and flexibility in terms of adsorbents used and the contact equipments. Adsorption of organic matter was investigated and the percentage removal was satisfactory. The removal of various metals like copper, chromium and cadmium was also very effective [9, 10]. Removal of phenol in batch and column was also carried out by various investigators. The treatment of domestic wastewater was also carried out successfully. The kinetic and isotherm studied are very important part of the investigations carried out for adsorptive treatment of wastewater [11]. The modeling batch results for kinetic study and isotherm studies for equilibrium data is also very important aspect of these investigations. For prediction of breakthrough curves, various models are used [12, 13, 14]. The present review aims at summarizing the studies and investigation carried out for modeling of adsorption in batch and column studies. It includes kinetic modeling and modeling of column studies to predict the breakthrough curves. Also model results are predicted and are related to batch data by few investigators [15]. II. STUDIES ON MODELING FOR ADSORPTION AND ADSORBER Efficiency of removal of phenolic waste was studied by Sorour et.al. by using packed bed reactor model [16]. First they carried out laboratory experiments to study the phenol removal in batch process with different initial concentrations of phenol in the influent. Then they carried out experimentation in packed beds at various bed depths. They used activated carbon and filtration anthracite as sorbents in batch and column studies. The experimental results were in agreement with the model estimations. So the model, once calibrated can be used for predicting the required parameters. The adsorption kinetics of lead removal was analyzed using Thomas and Yoon and Nelson kinetic models by Nwabanne and Igbokwe[17]. According to their investigations the kinetics data were well described by both the models. The solute uptake increased with increase in flow rates. They used oil palm fibers as adsorbent. They carried out experiments with bed height of 50mm, 100mm and 150mm. The experimental breakthrough curve agreed with the break through curve obtained by modeling equations. Becknel et.al. presented studies on analysis of adsorption breakthrough and desorption elution curves[18]. They used stainless steel column for the packed bed. They used helium to equilibrate the system. Then CO2 was fed with Modeling for Adsorption Columns for Wastewater Treatment: a Review Sunil J. Kulkarni Datta Meghe College of Engineering, Airoli, Navi Mumbai, Maharashtra, India, Pincode-400708