摘要
为有效降解乳化油废水,采用共沉淀法制备Fe3O4纳米微粒,并用聚乙二醇和十二烷基硫酸钠对微粒改性,得到双亲性磁核,进而采用分散聚合法制备核壳结构磁性粒子。经过表征测试,材料的接触角θ=133.4°,比表面积达到1 032.43 m2/g,饱和吸油率高达27.100 7 g/g,缓释保油率最高为96.19%,对乳化油表现出较强吸附性能。磁性粒子比饱和磁化强度为3.95×103A/m,具有强磁响应性,有利于材料的回收和重复使用。通过12 h降解乳化油研究,该材料固定化微生物处理乳化油比直接投放微生物的降解率提高了13.86%。本研究成果为新型磁性材料固定化微生物快速吸附降解乳化油废水及其应用提供了参考。
In order to effectively degrade emulsion wastewater, the Fe3 O4 nanoparticles are prepared bycoprecipitation method,the particles are modified by polyethylene glycol and 12 alkyl sulfate,the amphiphilicmagnetic nuclei are obtained, and then the core-shell magnetic particles are prepared by dispersingpolymerization method. After the characterization test, the contact angle of the material is θ=133.4° ,thespecific surface area reaches 1032. 43 m^2/g , the oil absorption rate is as high as 27. 1007 g/g,and themaximum oil-retention rate is 96. 19%,and the emulsion oil shows strong adsorjDtion performance.saturated magnetization of the magnetic particle is 3.95×10^3A/m and has the strong is beneficial to the recovery and reuse of materials. The degradation rate of emulsified oil treated by immobilized microorganism increases by 13. 86% through the study of 12 hours of the degradation of emulsified oil. The results of tliis study provide a reference for the rapid adsorj^tion and degradation of emulsified oil wastewater byimmobilized microorganisms in new magnetic materials and its application.
出处
《山东交通学院学报》
CAS
2017年第4期54-59,共6页
Journal of Shandong Jiaotong University
基金
国家自然科学基金资助项目(51609131)
山东省自然科学基金资助项目(ZR2017MEE031)
山东省高等学校科技计划项目资助项目(J16LA61)
威海市科技发展计划资助项目(2016GGX003-1)
关键词
纳米材料
固定化
生物降解
乳化油
污水处理
nanometer material
immobilization
biodegradation
emulsion oil
sewage treatment
