Proceedings of the 2016 International Conference on Biological Engineering and Pharmacy (BEP 2016)

A General Isotherm Model for Activated Carbon Adsorption of Typical Natural Organic Matters

Authors
Xiaodan ZHAO, Donghui CHEN, Yurong ZHANG
Corresponding Author
Xiaodan ZHAO
Available Online December 2016.
DOI
https://doi.org/10.2991/bep-16.2017.58How to use a DOI?
Keywords
natural organic matters; adsorption isotherm; the modified SR model
Abstract

The activated carbon adsorption isotherms of organic matters in natural water were type II and III isotherms, which cannot fitted accurately by the Langmuir and Freundlich models. It is investigated on the different kinds of activated carbon adsorption characteristics for humic, lignin and tannic acid and the fit of the modified SR equation. Results show that the modified SR model has a high degree of fit to all types of isotherms (Coefficient of determination >0.95) compared with the two classical models. In order to make the predicted value of the modified SR model having practical significance, the limiting adsorption capacity, which is related to the pore structure of activated carbon and organic molecular size, is introduced. Limiting equilibrium concentrations are calculated by the modified SR equation and the limiting adsorption capacity.

Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2016 International Conference on Biological Engineering and Pharmacy (BEP 2016)
Series
Advances in Biological Sciences Research
Publication Date
December 2016
ISBN
978-94-6252-287-9
ISSN
2468-5747
DOI
https://doi.org/10.2991/bep-16.2017.58How to use a DOI?
Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Xiaodan ZHAO
AU  - Donghui CHEN
AU  - Yurong ZHANG
PY  - 2016/12
DA  - 2016/12
TI  - A General Isotherm Model for Activated Carbon Adsorption of Typical Natural Organic Matters
BT  - Proceedings of the 2016 International Conference on Biological Engineering and Pharmacy (BEP 2016)
PB  - Atlantis Press
SP  - 270
EP  - 274
SN  - 2468-5747
UR  - https://doi.org/10.2991/bep-16.2017.58
DO  - https://doi.org/10.2991/bep-16.2017.58
ID  - ZHAO2016/12
ER  -