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

作　　者：Xingyu Liu Junxu Chen Rui Wang Yifan Su Zhangheng Zhou Zezhong Hou Zhuoran Li Junhao Zhao Weicai Shi Xinquan Yu Zhaopeng Yu Youfa Zhang 

机构地区：[1]State Key Laboratory of Advanced Technology for Float Glass,CNBM Research Institute for Advanced Glass Materials Group Co.,Ltd,Bengbu,233000,China [2]Jiangsu Key Laboratory of Advanced Metallic Materials,School of Materials Science and Engineering,Southeast University,Nanjing,211189,China [3]Research Institute of Petroleum Engineering Technology of Jiangsu Oilfield,Yangzhou,225009,China [4]Kunshan Industrial Technology Research Institute,Kunshan,215300,Suzhou,China [5]School of Automotive Engineering,Changshu Institute of Technology,Changshu,215500,Suzhou,China

出　　处：《Journal of Bionic Engineering》2024年第2期913-923,共11页仿生工程学报（英文版）

基　　金：The National Natural Science Foundation of China(No.52071076);Opening Project of State Key Laboratory of Advanced Technology for Float Glass(Grant 2022KF03)are gratefully acknowledged.

摘　　要：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.

关 键 词：SERPENTINE Underwater oleophobic Water immersion resistance ANTI-FOULING Hardening resistance 

分 类 号：X703[环境科学与工程—环境工程]