Adsorption Kinetics of Copper by Biochars

DOI

10.2991/icaees-15.2015.21How to use a DOI?

Keywords

biochars; Cu(II); sorption; peanut shells

Abstract

At present, the heavy metal pollution has become one of serious environmental problems which has drawn the great attention to scientists. Biochar has great sorption capacity to heavy metals. It has become one of hotspots research of soil science and environmental science because of its huge application prospect in agriculture and environment. In this paper, biochars were derived from peanut shells at different pyrolysis temperatures and limited-air condition. The elemental compositions of biochars were characterized. The results showed that the concentrations of C increased with increasing temperature as a result of combustion and volatilization; while H, O decreased. The biochars showed appreciable capability of adsorption for copper from aqueous solution. The experimental data indicated that the sorption capacity of Cu(II) on the biochars increased by the increment of charring temperature, and decreased by the increment of charring time. It might be that biochar has aromatic ring structure after being charred.

Copyright

© 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/).

Download article (PDF)

TY  - CONF
AU  - Huiying Guo
AU  - Fang Yang
AU  - Zhengqi Cheng
AU  - Yanzhi Yin
PY  - 2015/07
DA  - 2015/07
TI  - Adsorption Kinetics of Copper by Biochars
BT  - Proceedings of the 3rd International Conference on Advances in Energy and Environmental Science 2015
PB  - Atlantis Press
SP  - 115
EP  - 120
SN  - 2352-5401
UR  - https://doi.org/10.2991/icaees-15.2015.21
DO  - 10.2991/icaees-15.2015.21
ID  - Guo2015/07
ER  -