Recovery of Nitrophenols from Aqueous Solutions by a Liquid Emulsion Membrane System

Gadekar, Pradeep T.; Mukkolath, A. V.; Tiwari, Krishna Kant

doi:10.1080/01496399208018893

Cited by 36 publications

(13 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although several studies have been made on the separation of phenols from water by ELM, [6][7][8][9][10][11][12][13][14][15][16][17][18][19] comprehensive studies on the effects of process variables are yet to be carried out. Additionally, little work has been reported in the literature on the stability of the membrane [20] and its reuse.…”

Section: Introductionmentioning

confidence: 99%

Extraction of Priority Pollutant 4-Nitrophenol from Water by Emulsion Liquid Membrane: Emulsion Stability, Effect of Operational Conditions and Membrane Reuse

Chaouchi¹,

Hamdaoui²

2014

Journal of Dispersion Science and Technology

View full text Add to dashboard Cite

This work aims to the extraction of the priority pollutant 4-nitrophenol (4-NP) from water by emulsion liquid membrane (ELM). Liquid membrane consists of a diluent (hexane) and a surfactant (Span 80). Sodium carbonate solution was used as internal aqueous phase. Effects of important experimental conditions governing the stability of the W/O emulsion were investigated. Influence of operating parameters that affects the permeation of 4-NP such as surfactant concentration, emulsification time, sulfuric acid concentration in external phase, acid type in external phase, internal phase concentration, type of internal phase, stirring speed, volume ratio of internal phase to membrane phase, treatment ratio, 4-NP initial concentration, and diluent type was examined. This study also evaluated the effect of Na 2 CO 3 concentration in the internal aqueous phase on the stripping of 4-NP. Additionally, the reuse of the recovered membrane was studied. Under most favorable conditions, practically all the 4-NP and aniline (AN) molecules present in the feed phase were extracted. The recovery of the membrane phase was total and the extraction of 4-NP was not decreased. The ELM treatment process represents a very interesting advanced separation process for the removal of 4-NP and AN from aqueous solutions.

show abstract

Section: Introductionmentioning

confidence: 99%

Extraction of Priority Pollutant 4-Nitrophenol from Water by Emulsion Liquid Membrane: Emulsion Stability, Effect of Operational Conditions and Membrane Reuse

Chaouchi¹,

Hamdaoui²

2014

Journal of Dispersion Science and Technology

View full text Add to dashboard Cite

show abstract

“…water/oil/water (w/o/w) systems or oil/water/oil (o/w/o) systems. Solute is usually transported inward through the organic phase, because it is thin and permits selective transport of molecules 1–4. Transport across the membrane is driven by the ability of the desired species to partition into the membrane phase, and its diffusion rate through the membrane.…”

Section: Introductionmentioning

confidence: 99%

Extraction of alcohol using emulsion liquid membrane consisting of paraffin oil as an organic phase and lecithin as a surfactant

Chanukya

Rastogi

2009

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…Marr and Draxler (1992a) describe the removal of heavy metals including Zn, Cd, Cu, Pb, and Hg from wasterwaters and the recovery of Ni from spent electroplating solutions and rinse waters. ELMs have been investigated for the removal of acetic acid, nitrophenols, and ammonia from wastewater (16)(17)(18). More recently, Huang et al (19) and Gleason et al (20) have applied ELM technology to the removal of arsenic from wastewater.…”

Section: Potential Applications For Elmsmentioning

confidence: 99%

A Tribute to Norman N. Li

Way

1996

ACS Symposium Series

View full text Add to dashboard Cite

Researchers in the fields of facilitated transport and liquid membranes owe much to Dr. Norman N. Li for his pioneering work on facilitated transport and the invention of liquid surfactant (emulsion) membrane technology when he was with Exxon Research and Engineering Company. A member of the National Academy of Engineering, Dr. Li became Chairman and President of NL Chemical Technology, Inc. after he recently retired as Director of Research and Technology at Allied Signal. Although his 30 year career has been spent entirely in industry, Dr. Li has an impressive record of publication. Dr. Li has also made important contributions to the profession through his participation in AIChE, ACS, and the North American Membrane Society. This chapter will highlight some of Dr. Li's accomplishments, briefly describe the liquid membrane technology he invented, and discuss commercial applications of the emulsion liquid membrane (ELM) and related technologies.In 1968 Dr. Norman N. Li invented a new separation technology known as the liquid surfactant or emulsion liquid membrane (7). This technique combined the conventional separation unit operations of extraction and stripping into a single process capable of extremely rapid separations and high selectivity. The emulsion liquid membrane (ELM) process technology is capable of separating an extremely wide variety of solutes from organics to metal ions for a very diverse set of applications including wastewater treatment, biotechnology, and hydrometallurgy. This chapter will briefly describe ELM technology and Dr. Li's contributions to the profession through his work in professional societies. Extensive, recent reviews of all aspects of ELM technology are available including theory, design, applications and economics (2-6).

show abstract

Recovery of Nitrophenols from Aqueous Solutions by a Liquid Emulsion Membrane System

Cited by 36 publications

References 22 publications

Extraction of Priority Pollutant 4-Nitrophenol from Water by Emulsion Liquid Membrane: Emulsion Stability, Effect of Operational Conditions and Membrane Reuse

Extraction of Priority Pollutant 4-Nitrophenol from Water by Emulsion Liquid Membrane: Emulsion Stability, Effect of Operational Conditions and Membrane Reuse

Extraction of alcohol using emulsion liquid membrane consisting of paraffin oil as an organic phase and lecithin as a surfactant

A Tribute to Norman N. Li

Contact Info

Product

Resources

About