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Modeling performance of commercial membranes in the low-pressure filtration coking wastewater treatment based on mathematical filtration models

机译:基于数学过滤模型的商业膜在低压过滤焦化废水处理中的建模性能

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Based on the results achieved in the coking industry wastewater ultrafiltration treatment and the presumptions of relaxation mathematical model carried out in non-stationary system, and based on the assumptions of the model of hydraulic resistance to filtration, the changes in the volumetric permeate flux in the process of membrane filtration has been described. The research was conducted on the effectiveness of the treatment of wastewater from coke plant industry. Coking industry wastewater treatment was carried out with the use of American GE-Water ultrafiltration membranes. The process of ultrafiltration was performed at 23 ℃, using transmembrane pressure of around 0.4 MPa and linear wastewater flow rate of 2m/s. For all the examined membranes, the transport characteristics corresponded to the relation between the volume flux of de-ionized water and transmembrane pressure of 0.2-0.8 MPa. The level of wastewater purification was defined for raw and cleaned wastewater indicators. None of the ultrafiltration membranes allowed the high level of pollutants to be removed. Thus, they were treated by reverse osmosis method (RO). The calculations based on the assumptions of the mathematical filtration models made it possible to predict the efficiency of commercial ultrafiltration membranes used in the process.
机译:基于焦化行业废水超滤处理中获得的结果以及在非平稳系统中进行的松弛数学模型的推定,并基于水力抗过滤模型的假设,分析了滤池中渗透水的体积通量的变化。已经描述了膜过滤的过程。对焦化厂废水的处理效果进行了研究。焦化工业废水的处理使用了美国GE-Water超滤膜。超滤过程在23℃下进行,跨膜压力约为0.4 MPa,线性废水流速为2m / s。对于所有检查的膜,传输特性对应于去离子水的体积通量与0.2-0.8 MPa的跨膜压力之间的关系。定义了废水净化水平,用于原始和清洁的废水指标。超滤膜均不能去除高水平的污染物。因此,它们通过反渗透法(RO)进行了处理。基于数学过滤模型的假设进行的计算使预测该工艺中使用的商业超滤膜的效率成为可能。

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