A novel separation technique: Gas-assisted three-liquid-phase extraction for treatment of the phenolic wastewater

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	A novel separation technique: Gas-assisted three-liquid-phase extraction for treatment of the phenolic wastewater
	Yu, Pinhua 1,2; Huang, Kun 1; Zhao, Junmei 1; Zhang, Chao 1,2; Xie, Keng 1,2; Deng, Fuli 1,2; Liu, Huizhou 1
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2010-11-20
卷号	75 期号:3 页码:316-322
关键词	Three-liquid-phase extraction Gas-assisted solvent extraction p-Nitrophenol o-Nitrophenol Separation
ISSN号	1383-5866
通讯作者	Liu, HZ
英文摘要	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.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	SOLVENT SUBLATION ; AQUEOUS-SOLUTIONS ; TRACE-ELEMENTS ; REMOVAL ; SAMPLES ; ADSORPTION ; FLOTATION ; SYSTEMS ; LIGAND ; BLUE
收录类别	SCI
语种	英语
WOS记录号	WOS:000284453700011
公开日期	2013-11-12
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/5569]
专题	过程工程研究所_湿法冶金清洁生产技术国家工程实验室
作者单位	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
推荐引用方式 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, Huizhou.(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.