Study on oil/water separation using ceramic membrane before and after its wear and repair

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-05-01 Epub Date: 2025-02-18 DOI:10.1016/j.jtice.2025.106034

Zhaohui Mu , Yuqiu Song , Hengyi Wei , Huitong Ma , Liyan Wu , Huan Wang , Bin Zhan

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Abstract

Background

The amount of industrial and domestic wastewater being generated is continuously increasing with the rapid advancements in society and the economy. Oil/water separation is an important part of wastewater treatment, and the separation membrane plays a crucial role in this process. Ceramic separation membrane are widely used owing to their exceptional corrosion resistance and high-temperature resistance. However, the oil/water separation efficiency and flux are reduced after surface wear of the ceramic membrane.

Methods

In this study, the recovery in separation flux and efficiency after surface wear of a Silicon Carbide (SiC) ceramic membrane is studied.

Significant Findings

The flux of the ceramic membrane separation for n-hexane-in-water emulsion, cyclohexane-in-water emulsion, and petroleum ether-in-water emulsion was 417.20 ± 43.08, 503.18 ± 48.09, and 496.82 ± 29.19 L·m^–2·h^–1, respectively, and the separation efficiency was 97.62 ± 0.16 %, 97.38 ± 0.18 %, and 97.13 ± 0.12 %, respectively. After high-temperature sintering, the worn ceramic membrane formed a new microstructure, and the oil/water separation efficiency and flux increased by 6.66 % and 108.84 L·m^–2·h^–1, respectively. The present study establishes the fundamental basis for the practical implementation of ceramic membranes for oil/water separation.

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陶瓷膜磨损修复前后的油水分离研究

随着社会经济的快速发展，工业和生活废水的产生量不断增加。油水分离是污水处理的重要组成部分，而分离膜在这一过程中起着至关重要的作用。陶瓷分离膜因其优异的耐腐蚀和耐高温性能而得到广泛的应用。但陶瓷膜表面磨损后，油水分离效率和通量降低。方法对碳化硅（SiC）陶瓷膜表面磨损后分离通量和效率的恢复进行了研究。陶瓷膜分离水正己烷乳液、水环己烷乳液和石油醚乳液的通量分别为417.20±43.08、503.18±48.09和496.82±29.19 L·m-2·h-1，分离效率分别为97.62±0.16%、97.38±0.18%和97.13±0.12%。经高温烧结后，磨损陶瓷膜形成了新的微观结构，油水分离效率和通量分别提高了6.66%和108.84 L·m-2·h-1。本研究为陶瓷膜油水分离的实际应用奠定了基础。

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文献相关原料

公司名称

产品信息

阿拉丁

petroleum ether

阿拉丁

cyclohexane

阿拉丁

n-hexane

阿拉丁

NaCl

阿拉丁

NaOH

阿拉丁

HCl

阿拉丁

Sodium carboxymethyl cellulose

来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.