二氧化钛动态膜在油水乳化液分离中的应用研究Application of TiO2 Dynamic Membrane in Separation of Oil-in-water Emulsions
王婷婷,潘艳秋,王同华
摘要(Abstract):
以多孔管式炭膜为载体制备二氧化钛动态膜并开展动态膜分离油水乳化液的研究,考察了载体孔径对动态膜的截留率和稳定渗透通量的影响。实验结果表明,动态膜处理油水乳化液的截留率在98%以上,渗透液浓度低于8.3mg·L-1,达到国家环保排放要求;稳定渗透通量随载体孔径的增大先减小后增大。在实验基础上,提出了动态膜稳定渗透通量衰减率(FDR)的概念,并将FDR的变化趋势与动态膜类型进行关联研究。分析发现,FDR随载体孔径的增大先增大后减小,动态膜由完全堵塞过滤型过渡为中间堵塞过滤型;用中间堵塞过滤型动态膜过滤油水乳化液时,随着载体孔径的增大,渗透通量衰减变缓。
关键词(KeyWords): 动态膜;油水乳化液;通量衰减率;炭膜载体;中间堵塞过滤型
基金项目(Foundation): 国家自然科学基金(20976020)
作者(Author): 王婷婷,潘艳秋,王同华
参考文献(References):
- [1]PAN Yan-qiu(潘艳秋),LI Hong-jian(李红剑),WANG Tong-hua(王同华).Experimental research on treatment of emulsified oily wastewater using carbon membranes(炭膜处理含油污水的实验研究)[J].J Chem Eng of Chinese Univ(高校化学工程学报),2004,18(1):13-16.
- [2]Zhong J,Sun X J,Wang C L.Treatment of oily wastewater produced from refinery processes using?occulation and ceramic membrane filtration[J].Separation and Purification Technology,2003,32(1-3):93-98.
- [3]Pan Y Q,Wang W,Wang T H et al.Fabrication of carbon membrane and microfiltration of oil-in-water emulsion:An investigation on fouling mechanisms[J].Separation and Purification Technology,2007,57(2):388-393.
- [4]Chu L Y,Wang S,Chen W M.Surface modification of ceramic-supported polyethersulfone membranes by interfacial polymerization for reduced membrane fouling[J].Macromolecular Chemistry and Physics,2005,206(19):1934-1940.
- [5]WEI Feng-yu(魏凤玉),XIAO Xiang(肖翔).Demulsification of oil-in-water emulsions through hydrophilic cellulose ester membrane(亲水性混合纤维素酯微孔膜对O/W乳液的破乳)[J].Chinese Journal of Applied Chemistry(应用化学),2006,23(8):881-885.
- [6]CUI Xia(崔霞),ZHANG Han-min(张捍民),YE Mao-sheng(叶茂盛)et al.Preparation and characterization of cross-linked polyvinyl alcohol microspheres as a novel precoating reagent in dynamic membrane[J].Environmental Science(环境科学),2008,29(4):960-965.
- [7]Marcinkowsky A E,Kraus K A,Phillips H O et al.Hyperfiltration studies(IV)salt rejection by dynamically formed hydrous oxide membranes[J].Journal of the American Chemical Society,1966,88(24):5744-5746.
- [8]Kishihara S,Tamaki H,Fuji S et al.Clarification of technical sugar solution through a dynamic membrane formed on a porous ceramic tube[J].Journal of Membrane Science,1989,41:103-114.
- [9]Chen C C,Chiang B H.Formation and characteristics of zirconium ultrafiltration dynamic membranes of various pore sizes[J].Journal of Membrane Science,1998,143(1-2):65-73.
- [10]Wang J Y,Liu M C,Lee C J et al.Formation of dextran-Zr dynamic membrane and study on concentration of protein hemoglobin solution[J].Journal of Membrane Science,1999,162(1-2):45-55.
- [11]Noor M J M M,Ahmadun F R,Mohamed T A et al.Performance of flexible membrane using kaolin dynamic membrane in treating domestic wastewater[J].Desalination,2002,147(1-3):263-268.
- [12]ZHANG Han-min(张捍民),QIAO Sen(乔森),YE Mao-sheng(叶茂盛)et al.Domestic wastewater treatment with precoating dynamic membrane bio-reactor(预涂动态膜-生物反应器处理生活污水试验研究)[J].Acta Scientiae Circumstantiae(环境科学学报),2005,25(2):249-253.
- [13]WEI Qi-feng(魏奇锋),ZHANG Han-min(张捍民),YE Mao-sheng(叶茂盛)et al.Study on PAC-self-forming dynamic membrane bioreactor for domestic sewage treatment(PAC-自生动态膜生物反应器处理生活污水的研究)[J].China Water&Wastewater(中国给水排水),2007,23(1):48-52.
- [14]Zhao Y J,Tan Y,Wong F S et al.Formation of dynamic membranes for oily water separation by crossflow filtration[J].Separation and Purification Technology,2005,44(3):212-220.
- [15]XU Nan-ping(徐南平),XING Wei-hong(邢卫红),WANG Pei(王沛).The development and application of inorganic membranes in the treatment of industrial waste water(无机膜在工业废水处理中的应用与展望)[J].Membrane Science and Technology(膜科学与技术),2000,20(3):23-28.
- [16]Cai B X,Ye H L,Yu L.Preparation and separation performance of a dynamically formed MnO2membrane[J].Desalination,2000,128(3):247-256.
- [17]Tanny G B.Dynamic membranes in ultrafiltraion and reveres osmosis[J].Separation and Purification Methods,1978,7(2):183-220.