Oily wastewater treatment by porous ceramics mediums with surface lipophilic modification
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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.
Key wordslipophilic modification porous ceramics filter mediums oily wastewater
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- XiaoRu CHENG, HaiHua ZHAO, YUAN JianWei. Prospect and Application of Membrane Bioreactor in Wastewater Treatment[J]. China Safety Science Journal, 2005, 15(10): 57–61Google Scholar
- Jianhua JIN, Yun YU, Cuihua LI. Study on the Performance of Filtration by Ceramic Medium[J]. China Rural Water and Hydropower, 2006 (4): 6–7Google Scholar
- XiaoHong XU, YongJiang DI, JianFeng WU, et al. Study of Preparing Porous Ceramic Filter Material Made from Solid Waste[J]. Journal of Wuhan University of Technology, 2004, 26(5): 13–15Google Scholar
- FangWen LI, JianFeng WU, XiaoHong XU, et al. Disposal of Environmental Pollution by Porous Ceramic Filtration Medium[J]. China Safety Science Journal, 2006, 16(7): 112–117Google Scholar