Enhanced the adsorption of cadmium by modified orange peel with sodium hydroxide and ethyl alcohol
- 10.2991/icmse-15.2015.68How to use a DOI?
- Adsorption; cadmium ion; modified; orange peel
The aim of this work was to modify orange peel with sodium hydroxide and ethyl alcohol, and optimize the modified conditions and the adsorption parameters. The effects of various parameters including NaOH solution volume, NaOH solution concentration, ethyl alcohol volume, reaction time, reaction temperature, pH and Cd2+ solution initial concentration on the adsorption of Cd2+ were investigated detailedly. The NaOH solution volume, NaOH solution concentration and ethyl alcohol volume had strong effects on the adsorption of Cd2+ and their optimum values were determined as 25 mL, 24 g/L and 35 mL, respectively. The effects of reaction time and reaction temperature were not very significant and the appropriate values were determined as 10 min and 30 , respectively. The pH and initial concentration of Cd2+ solution were had great influences on the removal efficiency of Cd2+. The removal efficiency of Cd2+ on modified orange peel had reached up to 98.4% when the initial concentration of Cd2+ solution was 200 mg/L and the pH of Cd2+ solution was 5.0, which was 4.6 times greater compared with that of pristine orange peel. The results showed this chemical modification of orange peel had enhanced effectively its adsorption capacity of cadmium.
- © 2015, 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 - Jing Gao AU - Shiyu Jiang AU - Yunxu Zhu AU - Shanglong Chen PY - 2015/12 DA - 2015/12 TI - Enhanced the adsorption of cadmium by modified orange peel with sodium hydroxide and ethyl alcohol BT - Proceedings of the 2015 6th International Conference on Manufacturing Science and Engineering PB - Atlantis Press SP - 368 EP - 372 SN - 2352-5401 UR - https://doi.org/10.2991/icmse-15.2015.68 DO - 10.2991/icmse-15.2015.68 ID - Gao2015/12 ER -