Antibacterial properties of chitosan chloride-graphene oxide composites modified quartz sand filter media in water treatment.
作者： Xufei Li , Junzhi Sun , Yangli Che , Yan Lv , Fang Liu
DOI: 10.1016/J.IJBIOMAC.2018.10.123
关键词: Water treatment 、 Composite material 、 Bacteria 、 Mass fraction 、 Effluent 、 Oxide 、 Chloride 、 Chitosan 、 Sand filter 、 Materials science
摘要: Abstract In order to control bacterial pollution in water treatment, it is necessary prepare efficient antibacterial materials. Novel chitosan chloride-graphene oxide (CSCl@GO) composites were prepared via a one-step solution blending method. The characterized by FT-IR, XRD and TEM techniques. mechanism of CSCl@GO was investigated using gram-negative bacteria E. coli gram-positive S. aureus as two model microorganisms. properties for complex the cooling system researched. addition, modified quartz sand filter media (CSCl@GO/QS) synthesized. performance CSCl@GO/QS secondary effluent domestic sewage also investigated. results showed that completely inactivated after treatment with 100 mg·L−1 15 min. When adding or suspension, protein leakage 12.7 9.9 times higher than blank experiment 12 h. rate circulating reached 95.74% when mass fraction GO 0.6%. After backwashed 3 times, could still be above 90%.
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