A General Isotherm Model for Activated Carbon Adsorption of Typical Natural Organic Matters
- https://doi.org/10.2991/bep-16.2017.58How to use a DOI?
- natural organic matters; adsorption isotherm; the modified SR model
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.
- © 2017, the Authors. Published by Atlantis Press.
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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 -