Adsorption of hexavalent chromium from aqueous solution by modified corn stalk: A fixed-bed column study

doi:10.1016/J.BIORTECH.2011.11.110

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Adsorption of hexavalent chromium from aqueous solution by modified corn stalk: A fixed-bed column study

Journal Article•DOI•

Adsorption of hexavalent chromium from aqueous solution by modified corn stalk: A fixed-bed column study

Suhong Chen¹, Qinyan Yue¹, Baoyu Gao¹, Qian Li¹, Xing Xu¹, Kaifang Fu¹ - Show less +2 more•Institutions (1)

Shandong University¹

01 Jun 2012-Bioresource Technology (Elsevier)-Vol. 113, pp 114-120

TL;DR: The MCS column study states the value of the excellent adsorption capacity for the removal of Cr(VI) from aqueous solution that is useful for process design.

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About: This article is published in Bioresource Technology.The article was published on 2012-06-01. It has received 409 citations till now. The article focuses on the topics: Adsorption & Aqueous solution.

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Journal Article•DOI•

Fixed-bed column adsorption study: a comprehensive review

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Himanshu J. Patel

16 Mar 2019-Applied Water Science

TL;DR: In this article, a review of fixed-bed column studies for removal of various contaminants from synthetic wastewater is presented, in which adsorption of chromium metal is most exploitable.

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Abstract: Present paper involved the review of fixed-bed column studies for removal of various contaminants from synthetic wastewater. Basic concept of adsorption, its types (i.e., chemisorption and physisorption) and its mechanism, adsorbents and adsorbates were included. Comparison of batch and column adsorption study is mentioned. Complete study of breakthrough curve for designing adsorptive column is interpreted. This paper explicates the detailed explanation of various process parameters and isotherm models for column study. Fixed-bed adsorption studies using various adsorbates, i.e., metal, ion, dye and other hazardous materials, are reviewed, in which adsorption of chromium metal is most exploitable. Conclusion and some challenges for utilization in real world are also exposed.

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351 citations

Journal Article•DOI•

Adsorption of tetracycline and chloramphenicol in aqueous solutions by bamboo charcoal: A batch and fixed-bed column study

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Peng Liao¹, Peng Liao², Zhengyi Zhan¹, Jing Dai¹, Xiaohui Wu¹, Wenbiao Zhang³, Kun Wang², Songhu Yuan² - Show less +4 more•Institutions (3)

Huazhong University of Science and Technology¹, China University of Geosciences (Wuhan)², Zhejiang A & F University³

15 Jul 2013-Chemical Engineering Journal

TL;DR: A mass transfer model that incorporates both surface and intraparticle diffusion theory into the convection-dispersion equation (CDE) is developed to identify the key process controlling the rate of TC and CAP adsorption as mentioned in this paper.

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266 citations

Journal Article•DOI•

FTIR, Raman, and XPS analysis during phosphate, nitrate and Cr(VI) removal by amine cross-linking biosorbent.

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Zhongfei Ren¹, Xing Xu¹, Xi Wang¹, Baoyu Gao¹, Qinyan Yue¹, Wen Song¹, Li Zhang¹, Hantao Wang¹ - Show less +4 more•Institutions (1)

Shandong University¹

15 Apr 2016

TL;DR: This study explores the potential use of amine cross-linked reed (ACR) for removing nitrate, phosphate and Cr(VI) from aqueous in a fixed-bed column and found that Tertiary amine group played the main role in uptake of nitrate and phosphate by electrostatic attraction.

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Abstract: This study explores the potential use of amine cross-linked reed (ACR) for removing nitrate, phosphate and Cr(VI) from aqueous in a fixed-bed column. Characteristics (surface area, pore structure, FTIR, Raman spectra, XPS, zeta potential and solid NMR) of ACR as well as anions laden samples were intensively investigated. Results indicated that FTIR, Raman and XPS of nitrate and phosphate laden ACR were quite different from those of Cr(VI) laden samples, which corresponded well to their adsorption properties. Tertiary amine group played the main role in uptake of nitrate and phosphate by electrostatic attraction. Characteristics of Cr(VI) laden samples indicated that a reduction of Cr(VI) to Cr(III) occurred on surface of ACR (this was also proved by the zeta potential analysis). However, the main adsorption mechanism for Cr(VI) onto ACR was still based on electrostatic attraction. The maximum dynamic adsorption capacity of ACR for nitrate, phosphate and Cr(VI) was estimated to be 118.9 mg/g, 103.1mg/g and 135.3mg/g. The nitrate/phosphate adsorption capacities of spent ACR after 3 cycles of adsorption-desorption were recovered with 97.3-98.4%. In contrast, only 49.2% of Cr(VI) recovery was achieved, partially due to the destruction of the functional groups on surface of ACR during the Cr(VI) adsorption.

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214 citations

Journal Article•DOI•

Application of a breakthrough biosorbent for removing heavy metals from synthetic and real wastewaters in a lab-scale continuous fixed-bed column

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Atefeh Abdolali¹, Huu Hao Ngo¹, Wenshan Guo¹, John L. Zhou¹, Jian Zhang², Shuang Liang², Soon Woong Chang³, Dinh Duc Nguyen³, Yi Liu⁴ - Show less +5 more•Institutions (4)

University of Technology, Sydney¹, Shandong University², Kyonggi University³, Chinese Academy of Sciences⁴

01 Apr 2017-Bioresource Technology

TL;DR: Desorption studies indicated that metal-loaded biosorbent could be used after three consecutive sorption, desorption and regeneration cycles by applying a semi-simulated real wastewater.

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198 citations

Cites background from "Adsorption of hexavalent chromium f..."

...These results confirmed that the change of initial concentration as a driving force affects the saturation rate, breakthrough time and adsorption zone length (Chen et al., 2012;Baral et al., 2009; Aksu et al., 2007)....
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Journal Article•DOI•

Diclofenac removal from water by adsorption using activated carbon in batch mode and fixed-bed column: isotherms, thermodynamic study and breakthrough curves modeling.

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Marcela Andrea Espina de Franco¹, Cassandra Bonfante de Carvalho¹, Mariana Marques Bonetto¹, Rafael de Pelegrini Soares¹, Liliana Amaral Féris¹ - Show less +1 more•Institutions (1)

Universidade Federal do Rio Grande do Sul¹

20 Apr 2018-Journal of Cleaner Production

TL;DR: In this paper, diclofenac adsorption was studied using activated carbon as adsorbent in batch process and fixed-bed column and the results showed that the amount adsorbed by the packed column was better predicted by Thomas equation.

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183 citations

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References

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Journal Article•DOI•

Activated carbons and low cost adsorbents for remediation of tri- and hexavalent chromium from water.

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Dinesh Mohan¹, Charles U. Pittman¹•Institutions (1)

Mississippi State University¹

21 Sep 2006-Journal of Hazardous Materials

TL;DR: The sorption capacities of commercial developed carbons and other low cost sorbents for chromium remediation are provided, and particular attention is paid to comparing the sorption efficiency and capacities of commercially available activated carbons to otherLow cost alternatives.

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1,611 citations

"Adsorption of hexavalent chromium f..." refers background in this paper

...(Gupta and Babu, 2009a; Kumar and Chakraborty, 2009; Aydın and Aksoy, 2009; Mohan and Pittman, 2006; Sarin and Pant, 2006; Malkoc et al., 2006; Gupta et al., 2010; Pehlivan and Cetin, 2009), etc....
[...]
...Chromium exists in nature in three oxidation states for Cr(II), Cr(III) and Cr(VI), only the latter two of which are stable (Aydın and Aksoy, 2009; Mohan and Pittman, 2006; Sarin and Pant, 2006)....
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Journal Article•DOI•

Heterogeneous Ion Exchange in a Flowing System

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Henry C. Thomas

01 Oct 1944-Journal of the American Chemical Society

1,510 citations

"Adsorption of hexavalent chromium f..." refers background or methods in this paper

...Thomas model Thomas model (Thomas, 1944) assumes plug flow behavior in the bed....
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...Thomas model (Thomas, 1944) assumes plug flow behavior in the bed....
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Journal Article•DOI•

Some aspects of the behavior of charcoal with respect to chlorine.1

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G. S. Bohart, E. Q. Adams

01 Mar 1920-Journal of the American Chemical Society

982 citations

"Adsorption of hexavalent chromium f..." refers background in this paper

...It was shown that the Thomas model (R2 range from 0.7431 to 0.9536) provided a better fitting compared to Adams–Bohart model....
[...]
...The Adams–Bohart, Thomas and Yoon–Nelson models were applied to the adsorption under varying experimental conditions to predict the breakthrough curves and to evaluate the model parameters of the fixed-bed column that are useful for process design....
[...]
...So in this study, Adams–Bohart, Thomas–Yoon models were developed to identify the best model for predicting the dynamic behavior of the column....
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...Bohart and Adams (Bohart and Adams, 1920) based on the surface reaction theory established a fundamental equation, which describes the relationship between Ct/C0 and t in a continuous system....
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...The Adams–Bohart model provides a simple and comprehensive approach to conduct and evaluate sorption-column test....
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Journal Article•DOI•

Application of gas adsorption kinetics. I. A theoretical model for respirator cartridge service life.

[...]

Young Hee Yoon, James H. Nelson

01 Aug 1984-American Industrial Hygiene Association Journal

TL;DR: A new theoretical model addressing the adsorption and breakthrough of contaminant vapors or gases with respect to solid sorbents is developed, less complicated and easier to apply to practical industrial hygiene problems than theories developed previously.

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Abstract: Using the principles of gas adsorption kinetics, we have developed a new theoretical model addressing the adsorption and breakthrough of contaminant vapors or gases with respect to solid sorbents. Specifically, we have applied the theory to predict respirator cartridge service life in connection with individual contaminant exposure to toluene, vinyl chloride, ethyl acetate, and each of several different trichlorinated hydrocarbons at several levels of concentration. Theoretical expressions and contaminant breakthrough curves derived from our new approach are compared with those published previously by Mecklenburg and by Wheeler. The breakthrough curves derived by Mecklenburg and by Wheeler have approximately the same shape as the corresponding experimental curves for 0% to 40% breakthrough. However, these curves deviate in varying degrees from the experimental data at breakthrough values exceeding 40%. By contrast, our new theory agrees with published experimental results over the entire range of 0% to 10...

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916 citations

"Adsorption of hexavalent chromium f..." refers background in this paper

...The R2 values higher than 0.88 indicated the validity of Yoon–Nelson model for the present system....
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...Different statistical parameters of the Yoon–Nelson model were calculated and given in Table 4....
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...The Yoon–Nelson model is based on the assumption that the rate of decrease in the probability of adsorption for each adsorbate molecule is proportional to the probability of adsorbate adsorption and the probability of adsorbate breakthrough on the adsorbent (Baral et al., 2009; Calero et al., 2009; Ahmad and Hameed, 2010)....
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...In a comparison of values of R2, both the Thomas and Yoon–Nelson models can be used to predict adsorption performance for adsorption of Cr(VI) in a fixed-bed column....
[...]
...The Adams–Bohart, Thomas and Yoon–Nelson models were applied to the adsorption under varying experimental conditions to predict the breakthrough curves and to evaluate the model parameters of the fixed-bed column that are useful for process design....
[...]

Journal Article•DOI•

Biosorption of phenol by immobilized activated sludge in a continuous packed bed: prediction of breakthrough curves

[...]

Zümriye Aksu¹, Ferda Gönen¹•Institutions (1)

Hacettepe University¹

30 Jan 2004-Process Biochemistry

TL;DR: A continuous fixed bed study was carried out by using Mowital®B30H resin immobilized dried activated sludge as a biosorbent for the removal of phenol from aqueous solution.

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888 citations

"Adsorption of hexavalent chromium f..." refers background or methods in this paper

...The Thomas model was suitable for adsorption process, which indicated that the external and internal diffusions were not the limiting step (Baral et al., 2009; Han et al., 2009a; Aksu and Gonen, 2004)....
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...The breakthrough curve is usually expressed by Ct/C0 as a function of time or volume of the effluent for a given bed depth (Han et al., 2009a,b; Kundu et al., 2004; Aksu and Gonen, 2004)....
[...]
...It was indicated that the overall system kinetics was dominated by external mass transfer in the initial part of adsorption in the column (Ahmad and Hameed, 2010; Han et al., 2009b; Aksu and Gonen, 2004)....
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