Hollow Fibers Filtration and Cleaning Processes Under Ultrasound and Gas Bubbling Combination

详细信息    查看全文

• 作者：Masoud Hashemi Shahraki ; Abdolmajid Maskooki and Ali Faezian
• 刊名：Journal of Food Process Engineering
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：40
• 期：1
• 全文大小：351K
• ISSN：1745-4530

文摘

Fouling is one of the main obstacles to filtration process. In this study, the effects of gas bubbling by carbonated feed, gas bubbling by direct injection of CO₂ (GB-DI-CO₂) and N₂ (GB-DI-N₂) and ultrasound (US) were evaluated on flux enhancement during milk solution ultrafiltration and flux recovery during cleaning process of fouled hollow fibers membrane module. Results showed that the US and gas bubbling (GB) treatments significantly enhanced the performance of both ultrafiltration and cleaning processes, however, the effect of GB-DI-CO₂ was not considerable. The best results were achieved when the GB-DI-N₂ treatment was applied with US treatment in filtration and cleaning process, under this treatment, the permeation flux was remarkably enhanced up to 288.57% during ultrafiltration as well as the fouling percentage was reduced to 15.55% after cleaning the fouled membrane. Furthermore, the US was more effective than the GB during cleaning process.