Column Studies on Chromium (VI) Adsorption onto Kala Jamun (Syzygiumcumini L.) Seed Powder (KSP)

Abstract

Abstract-This paper evaluate the industrial use of Kala Jamun (Syzygiumcumini L.) Seed powder (KSP) for the continuous adsorption of Cr(VI) in a column adsorption process. Adsrption of Cr(VI) onto Kala jamun Seed Powder have been examined with the variation of (a) bed depth of the adsorbents, (b) flow rate of the adsorbents and (c) Cr(VI) concentration. The results showed that both the adsorption and the regeneration of the Cr(VI) onto Kala Jamun (Syzygiumcumini L.) seed Powder (KSP) can effectively occur in the column mode of adsorption. On increasing the bed depth, the adsorption of Cr(VI) onto KSP increases whereas on increasing the flow rate and the Cr(VI) concentration of KSP adsorption decreases. The results of the column studies were also fitted to Bed Depth Service Time (BDST) model. The BDST model was appropriate for designing the column for industrial purpose.

Column study using modified banana pseudo stem as adsorbent for removal of Pb (II)

“…The kinetics of adsorption is studied using various models including the Thomas model (TM) and Yoon-Nelson (YN) model. The results of breakthrough curves were compared with other agricultural waste used for the removal of Pb (II) and were in agreement with the reported results [ 46 , 47 ]. Overall results showed that the column studies explain better performance in the removal of Pb (II) at lower flow rates.…”