Abstract
Continuous countercurrent fluidized column is fabricated to study the hydrodynamics and mass transfer of chromium(VI) ion from chromium aqueous solution to activated carbon. Hydrodynamics studies including pressure drop, holdup, and the flow pattern are studied. Batch adsorption studies are conducted to find the equilibrium time and effect of mass of adsorbent. Maximum percentage removal is obtained at maximum flow rates of water (1.42 cm/s) and solid particles (24.6 g/s) from the range of parameters studied in this work. For a given water velocity, the total pressure drop linearly increases along the length of the column because of the increase in frictional loss. Also, with an increase in water velocity, the solid holdup increases in the column. The percentage removal of chromium(VI) increased up to 60% along the length of the column because of the increased contact time between the adsorbent and the adsorbate. An empirical correlation is proposed to predict the solid holdup and mass transfer coefficient.
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References
Attia AA, Khedr SA, Elkholy SA (2010) Adsorption of chromium ion(VI) by acid activated carbon. Braz J Chem Eng 27:183–193. https://doi.org/10.1590/s0104-66322010000100016
Babel S, Kurniawan TA (2004) Cr(VI) removal from synthetic wastewater using coconut shell charcoal and commercial activated carbon modified with oxidizing agents and/or chitosan. Chemosphere 54:951–967. https://doi.org/10.1016/j.chemosphere.2003.10.001
Barros MASD, Silva EA, Arroyo PA, Tavares CRG, Schneider RM, Suszek M, Sousa-Aguiar EF (2004) Removal of Cr(III) in the fixed bed column and batch reactors using as adsorbent zeolite NaX. Chem Eng Sci 59:5959–5966. https://doi.org/10.1016/j.ces.2004.07.040
Bolger PT, Szlag DC (2002) Electrochemical treatment and reuse of nickel plating rinse waters. Environ Prog Sustain 21:203–208. https://doi.org/10.1002/ep.670210318
Chen Y, An D, Sun S, Gao J, Qian L (2018) Reduction and removal of chromium VI in water by powdered activated carbon. Materials 11:269–281. https://doi.org/10.3390/ma11020269
Gong X, Li W, Wang K, Hu J (2013) Study of the adsorption of Cr(VI) by tannic acid immobilised powdered activated carbon from micro-polluted water in the presence of dissolved humic acid. Bioresour Technol 141:145–151. https://doi.org/10.1016/j.biortech.2013.01.166
Ihsanullah Al-Khaldi FA, Abu-Sharkh B, Abulkibash AM, Qureshi MI, Laoui T, Atieh MA (2016) Effect of acid modification on adsorption of hexavalent chromium (Cr(VI)) from aqueous solution by activated carbon and carbon nanotubes, Desalin. Water Treat 57:7232–7244. https://doi.org/10.1080/19443994.2015.1021847
Johansson R, Neretnieks I (1980) Adsorption on activated carbon in countercurrent flow. Chem Eng Sci 35:979–986. https://doi.org/10.1016/0009-2509(80)85087-1
Nagarajan K, Renganathan T, Krishnaiah K (2016) Dye removal in steady-state continuous countercurrent liquid–solid adsorber. Separ Sci Technol 51:1955–1961. https://doi.org/10.1080/01496395.2016.1196220
Rahman M, Adil M, Yusof A, Kamaruzzaman Y, Ansary R (2014) Removal of heavy metal ions with acid activated carbons derived from oil palm and coconut shells. Materials 7(5):3634–3650. https://doi.org/10.3390/ma7053634
Selvi K (2001) Removal of Cr(VI) from aqueous solution by adsorption onto activated carbon. Bioresour Technol 80:87–89. https://doi.org/10.1016/s0960-8524(01)00068-2
Stylianou MA, Inglezakis VJ, Loizidou M (2014) Comparison of Mn, Zn, and Cr removal in fluidized- and fixed-bed reactors by using clinoptilolite, Desalin. Water Treat 53:3355–3362. https://doi.org/10.1080/19443994.2014.934103
Tokuyama H, Nii S, Kawaizumi F, Takahashi K (2002) Removal of dilute nitric acid by anion exchange using a countercurrent multistage fluidized-bed column. Ind Eng Chem Res 41:3447–3453. https://doi.org/10.1021/ie010373o
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Angeline Divya, G., Sakthibalan, R., Sumithra Parvadha Varthini, K. et al. Experimental investigation of hydrodynamics and chromium(VI) adsorption in continuous countercurrent fluidized column. Chem. Pap. 74, 1281–1288 (2020). https://doi.org/10.1007/s11696-019-00977-6
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DOI: https://doi.org/10.1007/s11696-019-00977-6