Long-Lasting Filtration of Oily Water by Anti-Fouling Underwater Oleophobic Sand Particles

The produced water from the oilfield was purified with filter material and then injected back into the ground. The serpentine filter material was easy to harden with the increase in filtration amount, which affected the water quality. A superhydrophilic/underwater oleophobic serpentine filter materi...

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Bibliographic Details
Published inJournal of bionics engineering Vol. 21; no. 2; pp. 913 - 923
Main Authors Liu, Xingyu, Chen, Junxu, Wang, Rui, Su, Yifan, Zhou, Zhangheng, Hou, Zezhong, Li, Zhuoran, Zhao, Junhao, Shi, Weicai, Yu, Xinquan, Yu, Zhaopeng, Zhang, Youfa
Format Journal Article
LanguageEnglish
Published Singapore Springer Nature Singapore 01.03.2024
Subjects
Artificial Intelligence
Biochemical Engineering
Bioinformatics
Biomaterials
Biomedical Engineering and Bioengineering
Biomedical Engineering/Biotechnology
Engineering
Research Article
Serpentine
Anti-fouling
Underwater oleophobic
Water immersion resistance
Hardening resistance
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Summary:The produced water from the oilfield was purified with filter material and then injected back into the ground. The serpentine filter material was easy to harden with the increase in filtration amount, which affected the water quality. A superhydrophilic/underwater oleophobic serpentine filter material was successfully prepared by a simple method of coating modification, which exhibited long-lasting filtration of oily water, good filtration and anti-fouling properties, and resistance to harden. The film-forming material of the superhydrophilic/underwater oleophobic coating was composed of SiO 2 particles with small size, which could completely and evenly cover the filter particle. The weight loss was only 7.6% after mechanical stirring for 90 min. Compared with the original filter material, the superhydrophilic/underwater oleophobic serpentine filter material showed a better anti-fouling ability and resistance to harden. The filtration of crude oil emulsion and oil slick sewage showed a better backwashing performance. After 35 cycles of continuous filtration of suspended solids in wastewater, the backwashing rate reached 78.4%. The results provided an effective method for the filtration of oily wastewater in the oilfield.
ISSN:1672-6529
2543-2141
DOI:10.1007/s42235-023-00461-8