Separation of Emulsified Oil from Oily Wastewater by Functionalized Multiwalled Carbon Nanotubes | |
Department | OSSO国家重点实验室 |
Liu J(刘娟)1,2; Li XC(李小成)3; Jia WH(贾卫红)1; Ding MS(丁明山)1,2; Zhang Y(张燕)1,2; Ren SL(任嗣利)1 | |
The second department | 固体润滑国家重点实验室;清洁能源化学与材料实验室 |
2016 | |
Source Publication | Journal of Dispersion Science and Technology |
ISSN | 0193-2691 |
Volume | 37Issue:9Pages:1294-1302 |
Abstract | Rapid separation of emulsified oil from oily wastewater is one of the most serious challenges faced in the petroleum industry. In this study, a rapid and efficient demulsifier, functionalized multiwalled carbon nanotubes (F-MWCNTs), was prepared and used to separate the emulsified oil from oily wastewater. Demulsification test showed that the oil removal efficiency could attain as high as 99.8% at an optimal condition within a few minutes. The micro-morphology of the oil–water mixture before and after demulsification was observed using a polarizing microscope. It was found that the fine oil droplets experienced a rapid coalescence to form oil phase floating on the water surface. Mechanism of the demulsification process was discussed. The introduction of the functional groups (such as ‒OH and ‒COOH) on the surfaces of F-MWCNTs enable them good amphiphilicity and therefore easily arriving at the oil/water interface to destroy the interfacial protective film mainly composed of asphaltenes and resins. The findings in this work showed that the F-MWCNT is an efficient nanomaterial to remove emulsified oil from the oily wastewater and might have wide application prospects in the petroleum industry. |
Keyword | Crude Oil-in-water Emulsion Demulsification Multiwalled Carbon Nanotubes Oil/water Separation |
Subject Area | 材料科学与物理化学 |
DOI | 10.1080/01932691.2015.1090320 |
Funding Organization | the National Science Foundation of China (51374195;51574217) |
Indexed By | SCI |
If | 1.591 |
Language | 英语 |
Funding Project | 羰基金属功能材料课题组;新型电池材料研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/20062 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) 固体润滑国家重点实验室(LSL) 清洁能源化学与材料实验室 |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, 18 Tianshui Middle Rd, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Lanzhou Inst Chem Phys, Chinese Acad Sci, Lab Clean Energy Chem & Mat, 18 Tianshui Middle Rd, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Liu J,Li XC,Jia WH,et al. Separation of Emulsified Oil from Oily Wastewater by Functionalized Multiwalled Carbon Nanotubes[J]. Journal of Dispersion Science and Technology,2016,37(9):1294-1302. |
APA | Liu J,Li XC,Jia WH,Ding MS,Zhang Y,&Ren SL.(2016).Separation of Emulsified Oil from Oily Wastewater by Functionalized Multiwalled Carbon Nanotubes.Journal of Dispersion Science and Technology,37(9),1294-1302. |
MLA | Liu J,et al."Separation of Emulsified Oil from Oily Wastewater by Functionalized Multiwalled Carbon Nanotubes".Journal of Dispersion Science and Technology 37.9(2016):1294-1302. |
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LZ01029043.pdf(598KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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