文献类型：期刊文献

英文题名：Self-rotation induced regeneration of filter media to enhance the oil-water separation in a microchannel filter

作者：Sun, Yuxiao[1];Liu, Yi[1];Xue, Zhendong[1];Xia, Siyu[1];Xu, Bowen[1];Huang, Yuan[2];Wang, Hualin[1,3]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Resou, Shanghai 200237, Peoples R China;[2]Shanghai Univ, Inst Environm Pollut & Heath, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China;[3]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Resou, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2023

卷号：53

外文期刊名：JOURNAL OF WATER PROCESS ENGINEERING

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001016589300001)】；

基金：We express our gratitude for funding received from the National Natural Science Foundation of China (52030001) and Science & Tech- nology Commission of Shanghai Municipality (20dz1207600) .

语种：英文

外文关键词：Hydrocyclone; Self-rotation; Filter media regeneration; Oil-water separation; Filtration

摘要：The regeneration of filter media was crucial to the filtration performance of the oily wastewater. Herein, a novel hydrocyclone-induce approach was proposed for filter media regeneration, followed by an exploration of oil desorption feasibility and mechanism. The effect of structural and operation parameters of a hydrocyclone on the particle self-rotation was extensively analyzed by numerical simulation, and its feasibility for oil desorption from the filter media was subsequently investigated. A hydrocyclone-intensified filtration method that combined by the unit of filtration and hydrocyclone self-rotation regeneration was proposed, and the effect of hydrocyclone-induced filter media regeneration on the subsequent oily wastewater filtration was also explored. The ideal specifications of the hydrocyclone were concluded to be an overflow pipe insertion of 120 mm, and a cone angle of 60. for the optimal self-rotation velocity. The hydrocyclone-induced regeneration presents a remarkable oil desorption efficiency, and the oil concentration of filter media reduced from 9.43 % to 6.94 %, 4.33 %, and 3.43 % as the flowrate increased from 1.8 x 10(5) L.m(2).h(-1) to 5.4 x 10(5) L.m(2).h(-1). The adhered oil was exfoliated due to the centrifugal force caused by the revolution and self-rotation of the media particles, while the filter media spun in a hydrocyclone. The average effluent oil concentration in the raw oily wastewater was reduced to 12.2 mg/L during the pilot-scale test, indicating that the hydrocyclone regeneration benefits the continuous oil-water separation. It is believed that this work might provide a unique and efficient method for oily wastewater treatment with the integration of filtration and hydrocyclone regeneration.