Column adsorption of copper ions on modified porous glass Mateusz Witczak 1 1.Wrocław University of Science and Technology , Department of Chemistry, 4/6 Norwida St., Wrocław 50-373 Today, one of the major problems is the pollution of the environment. The main sources are industrial waste, where are found large amounts of metal ions that have a negative impact on the fauna and flora. Along with the economic development, increases the amount of pollutants emitted, resulting in an increase in the need to eliminate them. The goal of this work is to analyse the process of adsorption of copper ions (II) on a modified porous glass Poraver® with designed adsorbing bed. In order to determine the adsorption proces and the time of saturation of the bed, the simulated have been made, intended to provide a time after which the bed is saturated in 5%, 50%, 95%. •Used material: Silica Glass with density 370 kg/m 3 and porosity 0,51 •Mass of used bed: 3000 kg •Used model: Species transport in porous media. •Initial concentration of copper: 4,67 mol/m 3 The simulation confirmed the adsorption properties of PORAVER®, and released the actual concentration distributions in the porous bed volumes. The simulation lasts for 10 hours. A characteristic feature is that we do not observe move of the mass transfer zone, only clusters of points with a higher concentration than the surroundings. Fluctuations of concentration are caused by a continuous adsorption and desorption of copper, which is the balance between adsorption and desorption. References: 1. D. D. Do, Adsorption Analysis: Equilibria and Kinetics, Imperial College Press, London, UK, 1998. 2.http://www.poraver.com/en/technical-data/ day 19.06.2016 3. S.Brunauer, L.Deming, W.Deming, E.Teller, A New Classification of Adsorption Isotherms, J.Am.Chem.Soc., 1940,62,1723. 4. J.Pulit, M.Banach, Z.Kowalski, Właściwości nanocząsteczek miedzi, platyny, srebra, złota i palladu, Czasopismo Techniczne. Chemia, 2011, R.108, z.2-Ch, 197- 209. Figure 3. The axial section of porous bed a) Time: 2000s b) Time: 16000s Figure 1. Porous glass - Poraver® Figure 2. A model of porous bed Figure 4. The example of saturaded bed. Time: 23600s Figure 5. Concentration of copper ions a) position of sample: (0,0,2 x,y,z) b) The concentration graph of copper ions at the outflow Excerpt from the Proceedings of the 2016 COMSOL Conference in Munich

1.Wrocław University of Science and Technology Wrocław1.Wrocław University of Science and Technology, Department of Chemistry , 4/6 Norwida St. , Wrocław 50-373 Today, one of the

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Page 1: 1.Wrocław University of Science and Technology Wrocław1.Wrocław University of Science and Technology, Department of Chemistry , 4/6 Norwida St. , Wrocław 50-373 Today, one of the

Column adsorption of copper ions on modified porous glass Mateusz Witczak1

1.Wrocław University of Science and Technology, Department of Chemistry, 4/6 Norwida St., Wrocław 50-373

Today, one of the major problems isthe pollution of the environment. The main sourcesare industrial waste, where are found largeamounts of metal ions that have a negative impacton the fauna and flora. Along with the economicdevelopment, increases the amount of pollutantsemitted, resulting in an increase in the need toeliminate them.

The goal of this work is to analysethe process of adsorption of copper ions (II) on amodified porous glass Poraver® with designedadsorbing bed.

In order to determine the adsorptionproces and the time of saturation of the bed, thesimulated have been made, intended to provide atime after which the bed is saturated in 5%, 50%,95%.

•Used material: Silica Glass with density 370 kg/m3 and porosity 0,51

•Mass of used bed: 3000 kg •Used model: Species transport in porous media. •Initial concentration of copper: 4,67 mol/m3

The simulation confirmed theadsorption properties of PORAVER®, andreleased the actual concentrationdistributions in the porous bed volumes. Thesimulation lasts for 10 hours.

A characteristic feature is thatwe do not observe move of the mass transferzone, only clusters of points with a higherconcentration than the surroundings.

Fluctuations of concentrationare caused by a continuous adsorption anddesorption of copper, which is the balancebetween adsorption and desorption.

References:1. D. D. Do, Adsorption Analysis: Equilibria and Kinetics, Imperial College Press, London, UK, 1998.2.http://www.poraver.com/en/technical-data/ day 19.06.2016 3. S.Brunauer, L.Deming, W.Deming, E.Teller, A New Classification of Adsorption Isotherms, J.Am.Chem.Soc., 1940,62,1723. 4. J.Pulit, M.Banach, Z.Kowalski, Właściwości nanocząsteczek miedzi, platyny, srebra, złota i palladu, Czasopismo Techniczne. Chemia, 2011, R.108, z.2-Ch, 197-209.

Figure 3. The axial section of porous beda) Time: 2000s b) Time: 16000s

Figure 1. Porous glass - Poraver®

Figure 2. A model of porous bed

Figure 4. The example of saturaded bed. Time: 23600s

Figure 5. Concentration of copper ionsa) position of sample: (0,0,2 x,y,z)

b) The concentration graph of copper ions at the outflow

Excerpt from the Proceedings of the 2016 COMSOL Conference in Munich