广东工业大学学报
廣東工業大學學報
엄동공업대학학보
JOURNAL OF GUANGDONG UNIVERSITY OF TECHNOLOGY
2015年
2期
126-131
,共6页
区文仕%张国庆%袁晓娇%苏攀
區文仕%張國慶%袁曉嬌%囌攀
구문사%장국경%원효교%소반
聚偏氟乙烯%钙钛矿型粉末( CT powder )%超滤膜%油水分离%抗污染性能
聚偏氟乙烯%鈣鈦礦型粉末( CT powder )%超濾膜%油水分離%抗汙染性能
취편불을희%개태광형분말( CT powder )%초려막%유수분리%항오염성능
PVDF%CT powder%ultrafiltration membrane%oil-water separation%anti-fouling property
以钙钛矿型粉末(CT powder)作为无机添加剂与聚偏氟乙烯(PVDF)共混,采用相转换法合成了有机-无机共混超滤膜。利用平板错流超滤装置对超滤膜进行纯水通量、油水乳化液截留以及抗污染性能测试;通过扫描电子显微镜(SEM)观察了膜的表面形貌、断面结构和污染物分布情况;通过污水实验,测试CT/PVDF超滤膜的抗污染性能及自净性能。结果表明:当添加质量分数为1%CT powder时,可以较大地提高PVDF超滤膜的通量,减缓膜通量下降率,提高其抗污染性能和自净能力。且在油水分离实验中,渗透液水质,如浊度、油含量和化学需氧量等,均达国家排放标准。
以鈣鈦礦型粉末(CT powder)作為無機添加劑與聚偏氟乙烯(PVDF)共混,採用相轉換法閤成瞭有機-無機共混超濾膜。利用平闆錯流超濾裝置對超濾膜進行純水通量、油水乳化液截留以及抗汙染性能測試;通過掃描電子顯微鏡(SEM)觀察瞭膜的錶麵形貌、斷麵結構和汙染物分佈情況;通過汙水實驗,測試CT/PVDF超濾膜的抗汙染性能及自淨性能。結果錶明:噹添加質量分數為1%CT powder時,可以較大地提高PVDF超濾膜的通量,減緩膜通量下降率,提高其抗汙染性能和自淨能力。且在油水分離實驗中,滲透液水質,如濁度、油含量和化學需氧量等,均達國傢排放標準。
이개태광형분말(CT powder)작위무궤첨가제여취편불을희(PVDF)공혼,채용상전환법합성료유궤-무궤공혼초려막。이용평판착류초려장치대초려막진행순수통량、유수유화액절류이급항오염성능측시;통과소묘전자현미경(SEM)관찰료막적표면형모、단면결구화오염물분포정황;통과오수실험,측시CT/PVDF초려막적항오염성능급자정성능。결과표명:당첨가질량분수위1%CT powder시,가이교대지제고PVDF초려막적통량,감완막통량하강솔,제고기항오염성능화자정능력。차재유수분리실험중,삼투액수질,여탁도、유함량화화학수양량등,균체국가배방표준。
The organic-inorganic blended ultrafiltration membrane is synthesized by the phase transforma-tion method, which mixed perovskite powder (CT powder) with polyvinylidene fluoride(PVDF).The pure water flux , oil rejection performance and antifouling property of ultrafiltration membrane were tested by the plate cross-flow ultrafiltration device .The surface morphology , cross-sectional morphology and the pollutants'distribution of membrane were detected by using scanning electron microscope ( SEM ) .The anti-fouling property and self-cleaning performance of CT/PVDF ultrafiltration membrane were tested by sewage experiments .The results show that adding 1%CT powder can greatly improve the flux of PVDF ultrafiltration membrane , slow down the rate of membrane flux decline and improve its anti-fouling prop-erty and self-purification .In the oil-water separation experiment , the quality of penetrating fluid , such as turbidity , oil content and chemical oxygen demand are up to national emission standards .