Inferring the favorable adsorption level and the concurrent multi-stage process with the Freundlich constant

Journal of Hazardous Materials
Ru-Ling Tseng, Feng-Chin Wu

Abstract

This paper proposes a method for inferring a favorable level for the adsorption isotherm curve with the Freundlich constant (1/n), explains that a favorable level is only a function of 1/n, and then, five favorable levels are classified according to 1/n value. The adsorbent consumption ratio of the concurrent multi-stage to single-stage system was deduced in order to investigate the relationship between favorable level and the most suitable number of stages. Activated carbon (TGBAC) was prepared from Taiwan Giant Bamboo with steam activation. The isotherm equilibrium of the adsorption of three phenols (phenol, 3-CP, and 4-CP), two dyes (MB and BB 69), and tannic acid on TGBAC was obtained. According to the Freundlich constant (1/n), the adsorption of MB was inferred in a strongly favorable zone. The favorable zone for BB69, phenol, 3-CP, and 4-CP was determined. The tannic acid, the pseudo-linear zone and their most suitable number of stages were also determined. The 1/n values and favorable levels summarized from more than a hundred sources/studies indicate that the favorable levels of the adsorption of dyes and phenols on TGBAC are excellent. This paper proposes a simple method for inferring the favorable level and the most s...Continue Reading

References

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Sep 2, 2006·Journal of Hazardous Materials·Ozgür Aktaş, Ferhan Ceçen

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Citations

Mar 15, 2015·Journal of Environmental Sciences (China)·Ci FangYingcai Wang
Feb 6, 2017·Environmental Science and Pollution Research International·Yu-Peng GongXin-Hua Xu
Sep 10, 2014·International Journal of Environmental Research and Public Health·Ci FangYing-cai Wang
Nov 29, 2017·Environmental Science and Pollution Research International·Qianqian YinZhenghui Zhao
Sep 20, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Liangyu WuJinke Lin
Oct 28, 2019·Environmental Science and Pollution Research International·Wei QuRen-Jie Song
May 20, 2021·Journal of Analytical Methods in Chemistry·Hoang Thu HaTran Dinh Minh
Jul 31, 2021·The Science of the Total Environment·Larissa Zacher LaraAndreia Neves Fernandes
Sep 16, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Nataša M TomićDanica V Bajuk-Bogdanović

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