超滤膜净化松花江水数学建模

目的建模预测超滤膜净化松花江水膜通量，为工程设计提供参考．方法用中空纤维超滤膜处理松花江水，生产饮用水，研究对比膜进水浊度、操作压力、温度等对膜通量的影响并建立数学模型来预测膜通量．结果超滤膜通量随着膜进水的温度降低而降低，且与原水浊度的对数成反比，增加膜操作压力会提高膜通量，并构建了预测膜通量的数学表达式．结论对于不同的操作压力、温度和膜进水浊度等，该模型能较好地预测膜通量。其对净水工艺设计膜面积的确定、水泵动力的选择等对提高膜通量有较高的参考价值．

Modeling of Membrane Flux in Surface Water Treatment by Ultrafiltration

Prediction of flux decline for ultrafiltration and generally all membrane applications is very important both for the assessments of overall productivity,optimization,automation and for scaling up these systems.Surface water is purified by ultrafiltration membrane to produce drinking water.The membrane flux decreases with increasing turbidity and there is a somehow linear relationship between membrane flux and the log of turbidity.Mathematic model is built to predict the membrane flux based on this.The parameters which concern the model were raw water quality(turbidity),operation pressure and temperature.The result shows that the model can well predict the membrane flux.