| A novel separation technique: Gas-assisted three-liquid-phase extraction for treatment of the phenolic wastewater | |
| Yu, Pinhua1,2; Huang, Kun1; Zhao, Junmei1; Zhang, Chao1,2; Xie, Keng1,2; Deng, Fuli1,2; Liu, Huizhou1; Liu, HZ | |
| 2010-11-20 | |
| Source Publication | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| ISSN | 1383-5866 |
| Volume | 75Issue:3Pages:316-322 |
| Abstract | A novel technique, gas-assisted three-liquid-phase extraction (GATE), was proposed to improve three-liquid-phase separation of p-nitrophenol (p-NP) and o-nitrophenol (o-NP) from wastewater. The partition behavior of p-NP and o-NP into a three-liquid-phase system composed of hexane-PEG2000-(NH(4))(2)SO(4)-H(2)O at the aid of gas bubbling was discussed. It was demonstrated that the process of gas bubbling was effective for the mass transfer of p-NP and o-NP into PEG phase and hexane phase, respectively. Influences of various parameters including the phase-forming salt concentrations, gas flow rate, gas bubbling time, initial volume of hexane and PEG phase on distribution behavior of p-NP and o-NP were investigated. Under the optimal conditions for GATE, the removal ratio of p-NP and o-NP from wastewater could reach 81% and 90%, respectively. While the mass fraction of p-NP into PEG phase and o-NP into hexane phase arrived at 75% and 74%, respectively. The distribution ratio and concentration factor were all higher than conventional three-liquid-phase extraction system. During GATE processes, the dispersed PEG and hexane in (NH(4))(2)SO(4) aqueous solution can be captured by ascending gas streams. GATE is demonstrated to be an effective method for the simultaneously extraction and separation of two or more organic chemicals in one-step's three-liquid-phase extraction, and also provides a technique to prevent loss of dispersed polymers and organic solvents in aqueous phase in extraction process for treatment of the phenolic wastewater. (C) 2010 Elsevier B.V. All rights reserved. |
| Keyword | Three-liquid-phase Extraction Gas-assisted Solvent Extraction P-nitrophenol O-nitrophenol Separation |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology |
| DOI | 10.1016/j.seppur.2010.08.021 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | SOLVENT SUBLATION ; AQUEOUS-SOLUTIONS ; TRACE-ELEMENTS ; REMOVAL ; SAMPLES ; ADSORPTION ; FLOTATION ; SYSTEMS ; LIGAND ; BLUE |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| WOS ID | WOS:000284453700011 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/5569 |
| Collection | 湿法冶金清洁生产技术国家工程实验室 |
| Corresponding Author | Liu, HZ |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Yu, Pinhua,Huang, Kun,Zhao, Junmei,et al. A novel separation technique: Gas-assisted three-liquid-phase extraction for treatment of the phenolic wastewater[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2010,75(3):316-322. |
| APA | Yu, Pinhua.,Huang, Kun.,Zhao, Junmei.,Zhang, Chao.,Xie, Keng.,...&Liu, HZ.(2010).A novel separation technique: Gas-assisted three-liquid-phase extraction for treatment of the phenolic wastewater.SEPARATION AND PURIFICATION TECHNOLOGY,75(3),316-322. |
| MLA | Yu, Pinhua,et al."A novel separation technique: Gas-assisted three-liquid-phase extraction for treatment of the phenolic wastewater".SEPARATION AND PURIFICATION TECHNOLOGY 75.3(2010):316-322. |
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