Oily wastewater treatment by porous ceramics mediums with surface lipophilic modification |
| |
Authors: | Yunhua Zhang Fuxing Gan Meng Li Jing Li Shiqian Li Yunpeng Gao |
| |
Affiliation: | 1.School of Resource and Environmental Science,Wuhan University,Wuhan,China;2.Wuhan Iron and Steel (Group) Corp.,Wuhan,China;3.School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan,China |
| |
Abstract: | Aiming at the treatment of difficult-to-handle oily wastewater, the ceramics filter mediums made from the iron and steel plant
sludge were adopted to surface lipophilic modification so as to remove oil efficiently. The hydrolysis technique by FTIR and
conductivity test indicated that under acid conditions hydrogen silicon oil did not hydrolyze but release hydrogen by chemical
reaction under alkaline conditions. The results of the experiments including contact angle measurement, FTIR analysis, and
SEM analysis illustrate that a layer of lipophile coating indeed exists evenly on the surface of filter mediums after modification.
Furthermore, the hydrogen-containing silicone oil was combined through dehydration of Si-H bond with the -OH on the surface
of ceramic filter medium. |
| |
Keywords: | |
本文献已被 CNKI SpringerLink 等数据库收录! |
|