Abstract
Microchannel extraction is a new method for separating solutes from aqueous solution, which presents huge potential for the extraction of dilute solution. In this work, a novel rotating microchannel extractor (RME) is developed and employed to extract La3+ from wastewater. The effects of the fluid volumetric flow rate, gas intake method, gas intake quantity, micropore size, and atomization on the extraction efficiency are investigated. In order to enhance extraction process, gas, micropores, and atomizer are adopted to further improve the extractor’s performance. The results show that the microchannel extractor has excellent extraction performance, and each method improves the extraction to varying degrees, the atomization is the best. During atomized extraction, the extraction efficiency in RME exceeds the traditional stirring extraction equilibrium value at low flow rates. Finally, the relation map of Weaq – Weo-g – E between Weber number and extraction efficiency are established to help accurately control the extraction device and predict the optimal operating conditions.
Published Version
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