膜科学与技术

高性能碟式陶瓷膜在油水乳液分离中的研究

作者：刘光华，常启兵，何世斌，杨玉龙，鲍志蕾，章文杰，郝恩奇，汪永清

单位： 1.景德镇陶瓷大学材料科学与工程学院，江西省高校无机膜重点实验室，景德镇 333000； 2.重庆兀盾纳米科技有限公司，重庆 402460

关键词：碟式陶瓷膜；动态过滤；膜污染；油水乳液分离

出版年,卷(期):页码： 2022,42(2):72-77

摘要：

为解决膜分离技术处理油水乳液所遇到的膜污染问题，本文选择碟式陶瓷膜，采用动态过滤方式，研究了跨膜压差、膜转速和进料液温度对处理油水乳液的渗透通量和截留率的影响。结果表明：使用平均孔径为100 nm的碟式陶瓷膜处理油质量浓度为1000 mg/L的油水乳化液，当进料液温度为30 ℃、膜旋转速度为365 r/min、跨膜压差为0.02 MPa的操作条件下，碟式陶瓷膜的稳定通量达8700 L/(m2·h·MPa)，截留率达99.9%。与相同孔径的管式陶瓷膜比较，碟式陶瓷膜的渗透通量提升3~5倍。这表明碟式陶瓷膜动态过滤系统能够实现油水乳液的低能耗和高效率处理，为油水乳液的处理提供了一种新的途径。

To solve the problem of membrane fouling in the treatment of oil-in-water emulsions by membrane separation technology. The dynamic filtration method with disk ceramic membrane (pore size of 100 nm) was used to explore the effect of TMP, membrane speed and feed temperature on permeation flux and rejection rate of oil-in-water emulsions. The results show that the stable permeation flux of the disk ceramic membrane was obtained of 8700 L/ (m2·h·MPa) under the operating conditions of feed temperature of 30 ℃, membrane rotation speed of 365 r/min and TMP of 0.02 MPa. When the oil-in-water emulsions with an oil concentration of 1000 mg/L, the rejection rate of 99.9%. Compared with the tubular ceramic membrane with the same pore size, the permeation flux of the disk ceramic membrane is increased by 3~5 times. This indicated that the dynamic ceramic membrane filtration system can realize the low energy consumption and high efficiency of oil-in-water emulsions treatment, and provide a new way for the treatment of oil-in-water emulsions.

刘光华(1995-)，男，江西吉安人，硕士，从事碟式陶瓷膜的制备及其应用研究。

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