A Batch Adsorber Design for Rhodium Adsorption on Gallic Acid Formaldehyde Resin

M. Cana, E. Bulutb, A. Örnekc aVocational School of Arifiye, 54580, Sakarya University, Turkey bSakarya University, Department of Chemistry, 54187 Sakarya, Turkey cKafkas University, Atatürk Vocational School of Healthcare, 36100 Kars, Turkey

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The adsorption of rhodium (III) ions onto gallic acid formaldehyde resin in a batch adsorber has been studied. Adsorption experiments were carried out by agitating 1 g resin particles with 1000 ml of Rh (III) ion solution of the initial concentrations from 16.54 to 88.80 mg/l (293K, 1M HCl). Using Langmuir isotherm, a single stage batch adsorber was designed for different adsorbent mass/treated effluent volume ratios. An initial rhodium concentration of 100 g/m3 is assumed and the required amount of resin particles to recover metal ion content by 75%-99% at various volumes of effluents. For a single-stage adsorption system, thus the adsorbent demonstrated recovery capacity. For example, 1 m3 of solution is to be treated; The required masses of gallic acid resol resin are 25 kg for 75% rhodium removal. In order to recover 90% of the rhodium (III) at various volumes of solution which having different metal concentrations, the required amount of gallic acid resin was calculated. For example, 1 m3 of solution is to be treated, the required amounts of resin particles to reduce the rhodium content by 90% increased from 75 to 76 kg with increase in the initial rhodium metal concentration from 0.1 to 100 g/m3. Through such a projection, a real single stage adsorption system can be designed.

DOI: 10.12693/APhysPolA.127.1311 PACS numbers: 68, 81, 82