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化工学报  2015 

中空纤维空气隙式膜蒸馏海水淡化过程的性能模拟与优化

DOI: 10.11949/j.issn.0438-1157.20141164, PP. 597-604

Keywords: 响应曲面,中空纤维空气隙式膜蒸馏,模拟,优化,蒸馏,脱盐,设计

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Abstract:

利用响应曲面法(RSM),以模拟标准海水(质量分数3.5%)为进水对中空纤维空气隙式膜蒸馏(AGMD-HF)海水淡化过程的影响因子和膜通量指标进行了模拟优化。通过面向中心复合设计法(CCD)实现了基于热料液进水温度、冷凝液进水温度和料液流量的实验优化设计,并建立了响应值与影响因子之间的二次多项式回归模型。方差分析(ANOVA)、RSM分析及实验响应值与预测值的对比验证了该模型对影响因子和膜通量模拟优化的可信度。进一步地,通过期望函数的引入确定了各影响因子最佳水平,并利用太阳能加热驱动过程实验进行验证。结果表明,ANOVA的决定系数R2达到0.986,p值则低于0.0001;实验膜通量与预测值平均误差仅为6.95%,产水电导率始终保持在10μS·cm-1以下,脱盐率稳定在99.99%以上;最佳影响因子水平分别为83.5℃、13.2℃和60.2L·h-1,在此条件下太阳能加热驱动过程膜通量达到6.47L·m-2·h-1。该实验不仅为潜在可行的规模放大过程提供了可参照的操作参数,而且表明将太阳能引入AGMD-HF海水淡化过程具有很强的实际应用潜力。

References

[1]  He K, Hwang H J, Woo M W, Moon I S. Production of drinking water from saline water by direct contact membrane distillation (DCMD) [J]. Journal of Industrial and Engineering Chemistry, 2011, 17 (1): 41-48
[2]  Chouikh R, Bouguecha S, Dhahbi M. Modelling of a modified air gap distillation membrane for the desalination of seawater [J]. Desalination, 2005, 181: 257-265
[3]  Khayet M, Cojocaru C, García-Payo C. Application of response surface methodology and experimental design in direct contact membrane distillation [J]. Ind. Eng. Chem. Res., 2007, 46 (17): 5673-5685
[4]  Boubakri A, Hafiane A, Bouguecha S A T. Application of response surface methodology for modeling and optimization of membrane distillation desalination process [J]. Journal of Industrial and Engineering Chemistry, 2014, 20: 3163-3169
[5]  Cojocaru C, Khayet M. Sweeping gas membrane distillation of sucrose aqueous solutions: response surface modeling and optimization [J]. Separation and Purification Technology, 2011, 81: 12-24
[6]  Khayet M, Cojocaru C. Artificial neural network model for desalination by sweeping gas membrane distillation [J]. Desalination, 2013, 308: 102-110
[7]  Onsekizoglu P, Bahceci K S, Acar J. The use of factorial design for modeling membrane distillation [J]. Journal of Membrane Science, 2010, 349: 225-230
[8]  Chang H, Liau J S, Ho C D, Wang W H. Simulation of membrane distillation modules for desalination by developing user's model on Aspen Plus platform [J]. Desalination, 2009, 249: 380-387
[9]  Khayet M, Cojocaru C. Artificial neural network modeling and optimization of desalination by air gap membrane distillation [J]. Separation and Purification Technology, 2012, 86: 171-182
[10]  Khayet M, Cojocaru C. Air gap membrane distillation: desalination, modeling and optimization [J]. Desalination, 2012, 287: 138-145
[11]  Guillén-Burrieza E, Blanco J, Zaragoza G, Alarcón D C, Palenzuela P, Ibarra M, Gernjak W. Experimental analysis of an air gap membrane distillation solar desalination pilot system [J]. Journal of Membrane Science, 2011, 379: 386-396
[12]  Yao K, Qin Y J, Yuan Y J, Liu L Q, He F, Wu Y. A continuous-effect membrane distillation process based on hollow fiber AGMD module with internal latent-heat recovery [J]. AIChE J., 2012, 59: 1278-1297
[13]  Wu J Y, Huang G T J, He W X, Wang P, Tong Z C, Jia Q, Dong L P, Niu Z Y, Ni L X. Basic fibroblast growth factor enhances stemness of human stem cells from the apical papilla [J]. Journal of Endodontics, 2012, 38 (5): 614-622
[14]  Qi B K, Chen X R, Shen F, Su Y, Wan Y H. Optimization of enzymatic hydrolysis of wheat straw pretreated by alkaline peroxide using response surface methodology [J]. Ind. Eng. Chem. Res., 2009, 48 (15): 7346-7353
[15]  García V, Landaburu-Aguirre J, Pongrácz E, Per?m?ki P, Keiski R L. Dehydration of water/dichloromethane/n-butanol mixtures by pervaporation, optimisation and modelling by response surface methodology [J]. Journal of Membrane Science, 2009, 338 (1/2): 111-118

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