Column study of chromium(VI) adsorption from electroplating industry by coconut coir pith

Journal of Hazardous Materials
Parinda SuksabyeWoranan Nakbanpote

Abstract

The removal of Cr(VI) from electroplating wastewater by coir pith was investigated in a fixed-bed column. The experiments were conducted to study the effect of important parameters such as bed depth (40-60cm) and flow rate (10-30ml min(-1)). At 0.05 C(t)/C(0), the breakthrough volume increased as flow rate decreased or a bed depth increased due to an increase in empty bed contact time (EBCT). The bed depth service time model (BDST) fit well with the experimental data in the initial region of the breakthrough curve, while the simulation of the whole curve using non-linear regression analysis was effective using the Thomas model. The adsorption capacity estimated from the BDST model was reduced with increasing flow rate, which was 16.40mg cm(-3) or 137.91mg Cr(VI)g(-1) coir pith for the flow rates of 10ml min(-1) and 14.05mg cm(-3) or 118.20mg Cr(VI)g(-1) coir pith for the flow rates of 30ml min(-1). At the highest bed depth (60cm) and the lowest flow rate (10mlmin(-1)), the maximum adsorption reached 201.47mg Cr(VI)g(-1) adsorbent according to the Thomas model. The column was regenerated by eluting chromium using 2M HNO(3) after adsorption studies. The desorption of Cr(III) in each of three cycles was about 67-70%. The desorptio...Continue Reading

References

Oct 4, 2003·Environmental Science & Technology·L Dupont, E Guillon
May 26, 2005·Journal of Colloid and Interface Science·Sanghamitra Kundu, A K Gupta
Jun 21, 2005·Bioresource Technology·G S AgarwalSanjeev Chaudhari
Jan 3, 2006·Journal of Hazardous Materials·Gui-Qiu ChenWen Jiang
Nov 23, 2006·Bioresource Technology·Gulsin Arslan, Erol Pehlivan

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Citations

Aug 9, 2011·Environmental Science & Technology·M PandaS Datta
Feb 25, 2014·International Journal of Biological Macromolecules·Leilei LiXiaojiao Wang
Feb 9, 2016·Journal of Colloid and Interface Science·Zhongfei RenHantao Wang
Feb 6, 2013·Journal of Colloid and Interface Science·Yingxin ZhaoZhenya Zhang
Oct 15, 2010·Journal of Hazardous Materials·Divya Chauhan, Nalini Sankararamakrishnan
Jul 27, 2010·Advances in Colloid and Interface Science·Amit BhatnagarRui A R Boaventura
Dec 19, 2019·Environmental Science and Pollution Research International·Ting YangYongming Luo
Apr 9, 2020·Environmental Technology·Antonio Wilson Macedo Carvalho CostaRoberto Rodrigues de Souza
Mar 7, 2021·Environmental Science and Pollution Research International·Mohd DanishQuang Thang Trinh
Aug 29, 2020·Journal of Environmental Management·Sirirat SangkarakJenyuk Lohwacharin
Jul 20, 2021·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Samir MohantaAnil Kumar Giri

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