文献类型：期刊文献

英文题名：Oil droplet internal circulation in produced water for capture and separation of suspended solids

作者：Wen, Jiazheng[1];Dai, Pinyi[1];Liu, Zihao[1];Xue, Jinwei[1];Zhang, Guangyao[1];Yang, Qiang[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2026

卷号：384

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20254919629140);WOS:【SCI-EXPANDED(收录号:WOS:001634704900001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (Grant No. 52025103) and the Xplorer Prize (Grant No. XPLORER-2022-1034) .

语种：英文

外文关键词：Synergistic separation; Suspended solids; Oil-suspended solid aggregates; Internal circulation

摘要：The recovery of suspended solids (SS) in produced water (PW) generated during oil extraction, such as colloids and asphaltenes, has considerable environmental and economic value. Conventional flotation and flocculation methods rely on chemical agents to aggregate SS and petroleum substances into oily sludge, which can cause secondary pollution. This study examines the use of oil droplet internal circulation within the shear flow field to capture SS without the addition of chemical agents. The microscopic process and mechanism of the oil capture of SS were investigated through real-time testing. The effects of oil concentration and viscosity, shear strength and SS particle size on oil capture efficiency were evaluated. Under optimised conditions, capture efficiency reached up to 99.3% for SS with a particle size of 50 mu m. By leveraging oil-SS interactions, this study demonstrates a synergistic separation approach that utilize indigenous oil present in PW instead of reliance on chemical agents and provide a pathway towards cleaner treatment processes.