High mechanical CuO@stainless steel mesh for continuous and durable separation of surfactant-stabilized viscous and light/heavy-mixed oily emulsions in liter-scale

被引：3

作者：

He, Qing ^{[1
,2
]}

Guo, Meiling ^{[3
]}

Shu, Juan ^{[1
,2
]}

Hu, Hua ^{[4
]}

Su, Hongwei ^{[1
,2
]}

Yan, Guilong ^{[1
,2
]}

Li, Zhenyu ^{[1
,2
]}

Wang, Li ^{[1
,2
]}

Xiang, Dong ^{[1
,2
]}

Zhao, Chunxia ^{[1
,2
]}

Wu, Yuanpeng ^{[1
,2
]}

Wang, Wei ^{[5
]}

Chen, Jingyu ^{[1
,2
]}

机构：

[1] Southwest Petr Univ, Sch New Energy & Mat, State Key Lab Oil & Gas Reservoir Geol & Exploitat, Chengdu 610500, Peoples R China

[2] Southwest Petr Univ, Collaborat Sci Innovat Platform Univ Sichuan Basal, Ctr Funct Mat Working Fluids Oil & Gas Field, Sichuan Engn Technol Res Ctr Basalt Fiber Composit, Chengdu 610500, Peoples R China

[3] Chengdu Technol Univ, Collaborat Innovat Ctr Funct Mat & Devices, Sch Mat & Environm Engn, Chengdu 611730, Peoples R China

[4] PetroChina Southwest oil & gas field Co, Explorat Div, Chengdu 610500, Peoples R China

[5] Harbin Inst Technol, Sch Environm, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China

来源：

JOURNAL OF WATER PROCESS ENGINEERING | 2023年 / 54卷

基金：

中国国家自然科学基金;

关键词：

CuO@SSM; Oily emulsion; High mechanical performance; Combustion; Continuous separation; OIL/WATER SEPARATION; COATED MESH; COPPER MESH; MEMBRANE; SUPERHYDROPHOBICITY; WETTABILITY; FABRICATION; REMOVAL; FILMS;

D O I：

10.1016/j.jwpe.2023.103998

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

High mechanical filtration membranes, which can continuously and durably separate surfactant-stabilized viscous and light/heavy-mixed oily emulsions with high separation efficiency, are highly desirable for existing oily wastewater remedy. Herein, an all inorganic FM, by decorating CuO microrods standing on stainless steel mesh (SSM), has been designed to fulfill this challenge. Our FM exhibits both superwetting surface and high mechanical performance (tensile strength: similar to 250 MPa). Furthermore, driven by the robust thermal stability of our FM (= 800 degrees C at oxygen atmosphere), combustion (<10 s) via alcohol flame, can be used to solve the oil fouling issue without deteriorating their original filtration performance. Prompted by these advantages aforementioned, our FM displays high oil rejection efficiency (>99 %) towards diverse surfactant free/ stabilized oil-in-water emulsions with good flux (> 10,500 L m(-2) h(-1) bar(-1)) via dead-end setup in millilitre-scale. Besides, continuous and durable separation of surfactant stabilized viscous (soybean oil) and light (hexane)/heavy (dichloroethane)mixed oil/water emulsions in liter-scale with good cycling stability and same separation efficiency compared to these of emulsions via dead-end setup in millilitre-scale aforementioned, has been also achieved. These outstanding functions make our FM hold excellent potential for practical complex oily wastewater purification.

引用

页数：13