膜科学与技术

纳滤去除水中中性药物的预测模型

作者：吴芳，封莉，张立秋

单位：北京林业大学北京市水体污染源控制技术重点实验室，北京 100083

关键词：纳滤；安替比林；薄膜理论；溶解-扩散模型；预测模型

出版年,卷(期):页码： 2016,36(4):97-102

摘要：

纳滤是去除饮用水中微量药物污染物的一种有效方法。本文选择中性药物安替比林（ANT）为研究对象，考察了利用溶解-扩散模型和薄膜理论相结合的方法来预测一种常用的纳滤膜NF-X对ANT的去除效果。模型建立过程中，首先在不同初始浓度和压力条件下进行实验，测得通量和去除率。试验结果表明，在温度一定的条件下，渗透通量与操作压力线性相关，而和初始浓度无关。根据已有的试验数据得到模型中的未知参数k和DK/δ。，通过最优拟合的方法确定传质系数k与ANT初始浓度Co关系为k=αCoβ，而DK/δ与Co无关，由此得到在不同操作压力和初始浓度条件下ANT去除率的预测模型(25?C, pH=7)。最后,通过选取其它初始浓度和压力对模型进行验证，实验值和预测值相对误差小于10%，预测效果较好。

Nanofiltration is an effective method to remove trace drug pollutants in water. In this paper, a netural drug antipyrine (ANT) was chosen to evaluate the prediction results with film theory and solution-diffusion mode by NF-X. Firstly, the permeate flux and rejection were obtained at different pressure and feed concentrations. The results indicated that the permeate flux and pressure were linearly related at a certain temperature and it was independent on the feed concentration. Then the unknown parameters k and DK/δ in the model were determined by the experimental data and the mass transfer coefficient k could be calculated by the feed concentration (k=αCoβ) through the best-fit method, while DK/δ was nearly constant. Thus the prediction model was established under different pressure and feed concentration conditions (25?C, pH=7). Finally, the rejections of ANT at other concentrations and pressures were predicted with relative error less than 10%, indicating that the prediction results were satisfactory.

作者简介：吴芳（1989.01.12），女，河北保定人，硕士研究生，E-mail: wfbd112@163.com。研究方向为纳滤去除水中中性药物污染物影响因素及预测模型研究。

参考文献：

[1] Reddersen K, Heberer T, Dünbier U. Identification and significance of phenazone drugs and their metabolites in ground and drinking water treatment[J]. Chemosphere, 2002, 49(6): 539-544.
[2]Yu Z R, Qiao T J, Zhang X H. Investigation on pharmaceuticals and personal care products in drinking water system in a city[J]. Water and wastewater, 2010, 36(9): 24-28.
[3]张烽,徐平. 反渗透、纳滤膜及其在水处理中的应用[J]. 膜科学与技术, 2003, 23(4): 241-254.
[4]俞三传,高从堦,张慧. 纳滤膜技术和微污染水处理[J]. 水处理技术, 2005, 31(9): 6-9.
[5]侯立安,刘晓芳.纳滤水处理应用研究现状与发展前景[J]. 膜科学与技术, 2010, 30(4): 1-7.
[6]Ariza M J, Canas A, Malfeito J. Effect of pH on electrokinetic and electrochemical parameters of both sub-layers of composite polyamide/polysulfone membranes[J]. Desalination, 2002, 148: 377-382.
[7]张显球,张林生,吕锡武. 纳滤对水中有机微污染物的去除效果与应用[J]. 水处理技术, 2005, 31(2): 62-65.
[8]童浩,王荣昌,夏四清等. 膜分离技术处理水中内分泌干扰物的研究进展[J]. 中国给水排水, 2009, 25(2): 5-9.
[9]Kiso Y, Nishimura Y, Kitao T, et al. Rejection properties of non-phenolic pesticides with nanofiltration membranes[J]. Journal of membrane Science, 2012, 171: 229.
[10]Bowen W R, Mohammad A W. Diafiltration by nanofiltration:Prediction and Optimization[J]. AIChE Journal, 1998, 44(8): 1799-1812.
[11]Shahtalebi A, Sarrafzadeh M H, Rahmati Montazer M M. Application of nanofiltration membrane in the separation of amoxicillin from pharmaceutical wastewater[J]. Iranian journal of environmental health, science and engineering, 2011, 8(2): 109-116.
[12]Zazouli M A, Susanto H, Nasseri S, et al. Influences of solution chemistry and polymeric natural organic matter on the removal of aquatic pharmaceutical residuals by nanofiltration[J]. Water research, 2009, 43(13): 3270-3280.
[13]Cuartas-Uribe B, Vincent-Vela M C, Alvarez-Blanco S, et al. Nanofiltration of sweet whey and predition of lactose retention as a function of permeate flux using the Kedem-Spiegler and Donnan Steric Partioning models[J]. Separation Purification Technology, 2007, 56(1): 38-46.
[14]Chang E E, Liang Chung-Huei, Huang Chin-Pao, et al. A simplified method for elucidating the effect of size exclusion on nanofiltration membranes[J]. Separation and purification technology, 2012, 85: 1-7.
[15]Murthy Z V P, Gupta S K. Estimation of mass transfer coefficient using a combined nonlinear membrane transport and film theory model. Desalination, 1997, 109(1): 39-49.
[16]Wang Ruifang, Li Yunhua, Wang Jiexiang, et al. Modeling the permeate flux and rejection of nanofiltration membrane separation with high concentration uncharged aqueous solutions[J]. Desalination, 2012, 299: 44-49.
[17]Nghiem L D, Schfer AI, Elimelech M, et al. Pharmaceuticals retention mechanisms by nanofiltration membranes[J]. Environmental Science and Technology, 2005, 39: 7698-7705.
[18]B Van der Bruggen, C Vandecasteele. Modelling of retention of uncharged molecules with nanofiltration[J]. Water research, 2002, 36(5): 1360-1368.
[19]黄裕,张晗,董秉直. 纳滤去除卡马西平的影响因素研究[J]。环境科学，2011，32（3）：705-710.

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