| Issue |
MATEC Web Conf.
Volume 175, 2018
2018 International Forum on Construction, Aviation and Environmental Engineering-Internet of Things (IFCAE-IOT 2018)
|
|
|---|---|---|
| Article Number | 01005 | |
| Number of page(s) | 4 | |
| Section | Construction Materials | |
| DOI | https://doi.org/10.1051/matecconf/201817501005 | |
| Published online | 02 July 2018 | |
A preparation method for the treatment of Cr(VI) composite adsorbent Ca-AC
1
College of Environmental Science and Engineering, Guilin University of Technology, 541004 Guilin, China
2
Guangxi Colleges and Universities Key Laboratory of Heavy Metal Pollution Prevention Theory and Technology, 541004 Guilin, China
3
3Shenzhen Shenshui Water Resources Consulting Co, LTD, 518003 Shenzhen, China
4
4Guangxi Eco-engineering Vocational and Technical College, 545005 Liuzhou, China
* Corresponding author: aluyanqin@glut.edu.cn
The effects of weight ratio of Eucalyptus and CaCl2, carbonization temperature and carbonization time on the composite adsorbent (Ca-AC) were studied. The best conditions for composite adsorbent (Ca-AC) were obtained: the weight ratio of CaCl2 to the eucalyptus sawdust was 2:1; the carbonization temperature was 650 °C; the carbonization time was 80 min. The Ca-AC yield reached 28.88%; the Cr(VI) adsorption value was 131.03 mg±g-1. The morphology and structure of the adsorbents were characterized. The results showed that the specific surface area of Ca-AC can reach 713 m2±g-1. The carboxyl, hydroxyl, lactones groups and amino could be determined on the activated carbon surface.
© The Authors, published by EDP Sciences 2018
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