裴明敬,朱婷婷,杨晶晶,阮晓东,李彦鹏

• 1:西北核技术研究所
• 2:长安大学环境科学与工程学院
• 3:浙江大学流体动力与机电系统国家重点实验室

摘要(Abstract)：

为了考察生物表面活性剂替代化学表面活性剂调控浮选气泡的能力,采用高速摄影技术,对比研究了茶皂素、鼠李糖脂和曲拉通3种表面活性剂溶液中单个气泡的变形、终速度与运动轨迹,以及气泡群的尺寸分布特征。结果表明,类似于化学表面活性剂,生物表面活性剂对单气泡的浮升运动和气泡群的尺寸分布均有重要的影响。少量的茶皂素就可以有效地抑制气泡变形、降低气泡终速度、增强气泡的稳定性、减小气泡群的特征尺寸和增大气泡群的比表面积。另外,生物表面活性剂对气泡的影响取决于生物表面活性剂的种类和浓度。茶皂素的调控效果强于鼠李糖脂。单从对气泡动力学行为的影响效果来看,生物表面活性剂可能成为化学表面活性剂的替代品或升级换代品。

关键词(KeyWords)： 生物表面活性剂;浮选;气泡;高速摄影

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(11072203);; 流体动力与机电系统国家重点实验室开放基金(GZKF-201026);; 中央高校基本科研业务专项基金(2013G2291013)

作者(Author): 裴明敬,朱婷婷,杨晶晶,阮晓东,李彦鹏

参考文献(References)：

• [1]Malysa K,Krasoska M,Krzan M.Influence of surface active substances on bubble motion and collision with various interfaces[J].Advance Colloid Interface Science,2005,205(225):114-115.
• [2]Acuna C.Measurement Techniques to Characterize Bubble Motion in Swarms[D].Montréal:McGill University,2005.
• [3]MA You-guang(马友光),WANG Xiao-hong(汪晓红),CHENG Hong(成弘).Influence of surfactant on gas-liquid mass transfer[J].J Chem Ind and Eng(China)(化工学报),1998,49(3):358-361.
• [4]Azgomi F,Gomez C O,Finch J A.Correspondence of gas holdup and bubble size in presence of different frothers[J].International Journal of Mineral Processing,2007,83(1):1-11.
• [5]Ruzicka M C,Vecer M M,Orvalho S,et al.Effect of surfactant on homogeneous regime stability in bubble column[J].Chemical Engineering Science,2008,63(4):951-967.
• [6]Hebrard G,Zeng J,Loubiere K.Effect of surfactants on liquid side mass transfer coefficients:A new insight[J].Chemical Engineering Journal,2009,148(1):132-138.
• [7]Gomez-Diaz D,Navaza J M,Sanjurjo B.Gas-liquid interfacial area in the presence of different chain length surfactants[J].Industrial and Engineering Chemistry Research,2009,48(12):5894-5900.
• [8]Painmanakul P,Sastaravet P,Lersjintanakarn S,et al.Effect of bubble hydrodynamic and chemical dosage on treatment of oily wastewater by induced air flotation(IAF)process[J].Chemical Engineering Research and Design,2010,88(5-6):692-702.
• [9]Li Yanpeng,Zhu Tingting,Liu Yanyan,et al.Effects of surfactant on bubble hydrodynamic behavior under flotation-related conditions in wastewater[J].Water Science&Technology,2012,65(6):1060-1066.
• [10]Finch J A,Nesset J E,Acuna C.Role of frother on bubble production and behavior in flotation[J].Minerals Engineering,2008,21(12):949-957.
• [11]CHEN Jin-nan(陈晋南),PENG Jiong(彭炯).Velocity of droplet with sorption-controlled surfactant in electrolyte solution[J].J Chem Ind and Eng(China)(化工学报),2000,51(1),120-125.
• [12]Banat I M,Franzetti A,Gandolfi I,et al.Microbial biosurfactants production,applications and future potential[J].Applied Microbiology and Biotechnology,2010,87(2):427-444.
• [13]Xu Q,Nakajima M,Ichikawa S,et al.Effects of surfactant and electrolyte concentrations on bubble formation and stabilization[J].Journal of Colloid and Interface Science,2009,332(1):208-214.
• [14]PENG Yan-chun(彭艳春),YUAN Xing-zhong(袁兴中),ZENG Guang-ming(曾光明).Research of removing ions from wastewater with mixed tea saponin and sodium laurylsulfate by flotation[J].Applied Chemical Industry,2008,37(2):125-128.
• [15]Mulligan C N,Yong R N,Gibbs B F.Heavymetal removal from sediments by biosurfactants[J].J Harzard Mater,2001,85(1-2):111-125.
• [16]MENG You-ting(孟佑婷),YUAN Xing-zhong(袁兴中),ZENG Guang-ming(曾光明).Removal of cadmium from wastewater with plant-derived biosurfactant tea saponin by ion flotation[J].Journal of Environmental Sciences,2005,25(8):1029-1033.
• [17]Doyle F M.Ion flotation its potential for hydrometallurgical operations[J].Inernational Journal of Mineral Processing,2003,72(1-4):387-399.
• [18]LIU Yan-yan(刘艳艳),LI Yan-peng(李彦鹏),ZHU Ting-ting(朱婷婷),et al.Study on modulating shape and velocity of meso-scale bubble using surfactants(表面活性剂对中尺度气泡形状及速度的调控研究)[J].Academic Journal of Xi’an Jiaotong University(西安交通大学学报),2011,45(10):93-97.
• [19]Watcharasing S,Kongkowit W,Chavadej S.Motor oil removal from water by continuous froth flotation using extended surfactant:Effects of air bubble parameters and surfactant concentration[J].Separation and Purification Technology,2009,70(2):179-189.