Construction of superhydrophobic heterogeneous fiber coalescence materials and emulsion oil removal properties

doi:10.19965/j.cnki.iwt.2023-0894

Abstract

Abstract:

In this study,polytetrafluoroethylene(PTFE), a commonly used coalescence oil removal material, was selected and loaded with polyaniline(PANI) on its surface to successfully construct a superhydrophobic fiber material. It was then woven with hydrophilic cotton(Cot) fibers to form a superhydrophobic/hydrophilic heterogeneous material(PANI/PTFE-Cot) for the treatment of oily wastewater. The results indicated that PANI with micro-nano structure was successfully loaded on PTFE fibre, and the dosage of aniline and reaction temperature affected the hydrophobicity of PANI/PTFE. When the reaction temperature was 25 ℃ and the dosage of aniline was 0.2 mol/L,the water contact angle reached its maximum of 154°. Compared with that of PTFE,the quality factor of 2∶1 PANI/PTFE-Cot increased 46.7%.

Key words: oily wastewater treatment, superhydrophobic material, coalescence, heterofibre-woven material, polytetrafluoroethylene

摘要：

选择常用的聚结除油材料聚四氟乙烯（PTFE），将其表面负载聚苯胺（PANI），成功构建超疏水纤维，并将其与亲水棉（Cot）纤维编织成超疏水/亲水异质材料（PANI/PTFE-Cot）用于处理含油废水。结果表明，具有微/纳结构的PANI成功负载在PTFE上，苯胺的投加量和反应温度影响PANI/PTFE的疏水性能。当反应温度为25 ℃，苯胺投加量为0.2 mol/L时，其水接触角达到最大，为154°。当PANI/PTFE和Cot纤维数量比为2∶1时，除油效果最佳。与传统的聚结材料PTFE相比，超疏水-亲水PANI/PTFE-Cot异质聚结材料的品质因子提高了46.7%。

关键词: 含油废水处理, 超疏水材料, 聚结技术, 异质编织纤维, 聚四氟乙烯

CLC Number:

X703.1

Ning MA, Zhipeng LI, Hongshan GUO, Xiufang ZHANG, Xueqing WANG. Construction of superhydrophobic heterogeneous fiber coalescence materials and emulsion oil removal properties[J]. Industrial Water Treatment, 2024, 44(5): 171-176.

马宁, 李志鹏, 郭宏山, 张秀芳, 王雪清. 超疏水异质纤维聚结材料的构建及乳化油去除性能[J]. 工业水处理, 2024, 44(5): 171-176.

/ / Recommend / Download Citations

URL: https://www.iwt.cn/EN/10.19965/j.cnki.iwt.2023-0894

https://www.iwt.cn/EN/Y2024/V44/I5/171

Figures/Tables 8

Fig.1 Diagram of woven hetero-fibre for coalescing oil

Fig.2 Image of experimental equipment（a） and enlarged diagram of coalescer（b）

Fig.3 Influence curves of reaction temperature and aniline dose on water contact angle of materials

Fig.4 SEM imgaes of PTFE and PANI/PTFE

Fig.5 FT-IR spectra of PTFE and PANI/PTFE

Fig.6 Influence of influent oil concentration on effluent oil concentration and oil droplet size distribution

Fig.7 Influence of influent pH on effluent oil concentration and oil droplet size distribution

Fig.8 Influence of fibers on oil concentration，oil droplet size distribution，pressure drop and quality factor in effluent

References 22

1	陈国华. 水体油污染治理［M］. 北京：化学工业出版社，2002：5.
2	PETERSON C H， RICE S D， SHORT J W，et al. Long-term ecosystem response to the Exxon Valdez oil spill［J］. Science，2003，302（5653）：2082-2086． doi:10.1126/science.1084282
3	BEYER J， TRANNUM H C， BAKKE T，et al. Environmental effects of the Deepwater Horizon oil spill：A review［J］. Marine Pollution Bulletin，2016，110（1）：28-51． doi:10.1016/j.marpolbul.2016.06.027
4	GOSSEN L P， VELICHKINA L M. Environmental problems of the oil-and-gas industry（Review）［J］. Petroleum Chemistry，2006，46（2）：67-72． doi:10.1134/s0965544106020010
5	杨强，卢浩，李裕东，等. 聚结分离技术在含油污水处理中的应用研究进展［J］. 环境工程学报，2021，15（3）：767-781． doi:10.12030/j.cjee.202008069
	YANG Qiang， LU Hao， LI Yudong，et al. Application and research progress of coalescence separation in oily wastewater treatment［J］. Chinese Journal of Environmental Engineering，2021，15（3）：767-781． doi:10.12030/j.cjee.202008069
6	桑义敏，云昊，韩严和，等. 污水中油滴聚结机理与材料聚结技术研究进展［J］. 工业水处理，2016，36（10）：6-10． doi:10.11894/1005-829x.2016.36(10).006
	SANG Yimin， YUN Hao， HAN Yanhe，et al. Progress in the research on coalescence mechanism of oil drops in wastewater and material coalescence technology［J］. Industrial Water Treatment，2016，36（10）：6-10． doi:10.11894/1005-829x.2016.36(10).006
7	BANSAL S， VON ARNIM V， STEGMAIER T，et al. Effect of fibrous filter properties on the oil-in-water-emulsion separation and filtration performance［J］. Journal of Hazardous Materials，2011，190（1/2/3）：45-50． doi:10.1016/j.jhazmat.2011.01.134
8	AGARWAL S， VON ARNIM V， STEGMAIER T，et al. Role of surface wettability and roughness in emulsion separation［J］. Separation and Purification Technology，2013，107：19-25． doi:10.1016/j.seppur.2013.01.001
9	SPIELMAN L A， GOREN S L. Progress in induced coalescence and a new theoretical framework for coalescence by porous media［J］. Industrial & Engineering Chemistry，1970，62（10）：10-24． doi:10.1021/ie50730a003
10	KOCHERGINSKY N M， TAN C L， LU Wenfeng. Demulsification of water-in-oil emulsions via filtration through a hydrophilic polymer membrane［J］. Journal of Membrane Science，2003，220（1/2）：117-128． doi:10.1016/s0376-7388(03)00223-0
11	FENG Lin， ZHANG Zhongyi， Zhenhong MAI，et al. A super-hydrophobic and super-oleophilic coating mesh film for the separation of oil and water［J］. Angewandte Chemie （International Ed．in English），2004，43（15）：2012-2014． doi:10.1002/ange.200353381
12	YONG Jiale， FANG Yao， CHEN Feng，et al. Femtosecond laser ablated durable superhydrophobic PTFE films with micro-through-holes for oil/water separation：Separating oil from water and corrosive solutions［J］. Applied Surface Science，2016，389：1148-1155． doi:10.1016/j.apsusc.2016.07.075
13	WEI Q F， MATHER R R， FOTHERINGHAM A F，et al. Evaluation of nonwoven polypropylene oil sorbents in marine oil-spill recovery［J］. Marine Pollution Bulletin，2003，46（6）：780-783． doi:10.1016/s0025-326x(03)00042-0
14	JIN Meihua， WANG Jing， YAO Xi，et al. Underwater oil capture by a three-dimensional network architectured organosilane surface［J］. Advanced Materials，2011，23（25）：2861-2864． doi:10.1002/adma.201101048
15	SARFARAZ U P， GEORGE G C. Separation of water droplets from water-in-diesel dispersion using superhydrophobic polypropylene fibrous membranes［J］. Separation and Purification Technology，2014，126：62-68. doi:10.1016/j.seppur.2014.02.009
16	SHIN C， CHASE G G. The effect of wettability on drop attachment to glass rods［J］. Journal of Colloid and Interface Science，2004，272（1）：186-190． doi:10.1016/j.jcis.2003.10.002
17	LUO Huiqing， YANG Xiaoyong， LU Zhaojin，et al. Effect of drainage layer on oil distribution and separation performance of fiber-bed coalescer［J］. Separation and Purification Technology，2019，218：173-180． doi:10.1016/j.seppur.2019.02.055
18	HAZLETT R N. Fibrous bed coalescence of water. steps in the coalescence process［J］. Industrial & Engineering Chemistry Fundamentals，1969，8（4）：625-632． doi:10.1021/i160032a005
19	KULKARNI P S， PATEL S U， CHASE G G. Layered hydrophilic/hydrophobic fiber media for water-in-oil coalescence［J］. Separation and Purification Technology，2012，85：157-164． doi:10.1016/j.seppur.2011.10.004
20	任文，张国立，闫涵，等. 超疏水聚苯胺/聚四氟乙烯复合膜的制备及油-水乳液分离性能［J］. 高等学校化学学报，2020，41（4）：846-854． doi:10.7503/cjcu20190537
	REN Wen， ZHANG Guoli， YAN Han，et al. Preparation of superhydrophobic polyaniline/polytetrafluoroethylenethylene composite membrane and its separation ability for\r oil-water emulsion［J］. Chemical Journal of Chinese Universities，2020，41（4）：846-854． doi:10.7503/cjcu20190537
21	SHIN C， CHASE G G， RENEKER D H. The effect of nanofibers on liquid-liquid coalescence filter performance［J］. AIChE Journal，2005，51（12）：3109-3113． doi:10.1002/aic.10564
22	卢浩. 基于液滴有效碰撞的纤维聚结理论研究及应用［D］. 上海：华东理工大学，2019.

[1]	Minxia ZHANG,Tao LIU,Mingming AN,Qiming YOU. Coalescence technology and equipment of oil droplets in oil field produced water [J]. Industrial Water Treatment, 2022, 42(3): 33-40.
[2]	Xiaoxu TANG,Yong ZHANG,Xiujun WANG,Jiaqing CHEN. Application research of electric field enhanced oil-water separation in oilfield produced liquid [J]. Industrial Water Treatment, 2022, 42(3): 168-171.
[3]	Lixin Liu,Xiaohong Tan,Xiaofei Zhao,Jiafeng Lai,Enxun Wang,Guanping Qiu,Meilan Chen. Demulsification and oil removal of simulated chemical flooding oily wastewater by hydrophobic modified steel mesh [J]. Industrial Water Treatment, 2021, 41(6): 257-261.
[4]	Zhiqing Zhang,Chunlin Luo,Liang He,Dayong Wang,Fangmei Wang. Design and operation of Missan Oilfield produced water treatment process [J]. Industrial Water Treatment, 2019, 39(11): 94-96.
[5]	Sang Yimin, Yun Hao, Han Yanhe, Liang Cunzhen. Progress in the research on coalescence mechanismof oil drops in wastewater and material coalescence technology [J]. INDUSTRIAL WATER TREATMENT, 2016, 36(10): 6-10.
[6]	. Research development in the gravity oilwater separation technology [J]. INDUSTRIAL WATER TREATMENT, 2008, 28(7): 13-16.
[7]	CHEN Zhongxi, DENG Shubo, XIA Fujun. Study on the transverse flow oil separator for treating the oil-bearing sewage in the oil-field [J]. INDUSTRIAL WATER TREATMENT, 2001, 21(1): 31-33.

Please choose a citation manager

Content to export