Concentration of benzylpenicillin sodium by polyimide nanofiltration membrane

Shi, Baoli; Zhang, Qianru; Zhang, Hongfeng; Liu, Zhiguo; Zhang, Xiucheng

doi:10.1002/app.25670

Cited by 6 publications

(2 citation statements)

References 13 publications

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“…Many researchers have also evaluated the ability of NF membranes to trap various pharmaceuticals. For example, Shi et al [5] have made the concentration of benzylpenicillin sodium by polyimide NF membrane. The removal of several hormones and antibiotics by NF membranes was studied in mixed solutions [6].…”

Section: Introductionmentioning

confidence: 99%

Study on removal of organic matters in water by PVA modified PA-TFC nanofiltration membrane

et al. 2011

Desalination and Water Treatment

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2011) Study on removal of organic matters in water by PVA modified PA-TFC nanofiltration membrane, Desalination and Water Treatment,[75][76][77][78][79][80] To link to this article: http://dx. A B S T R AC TPolyvinyl alcohol (PVA) modifi ed polyamide thin fi lm composite (PA-TFC) nanofi ltration membranes were prepared by the interfacial polymerization of trimesoyl chloride (TMC), piperazine (PIP) and PVA on polysulfone supporting membranes, and were used for separating organic compounds from water. The results show that composite nanofi ltration membranes are effective in retaining negatively charged organic compounds with molecular weight higher than 100 Da. For example, rejections to tyrosine, salicylic acid, and terephthalic acid were 63%, 77% and 97%, respectively. The effect of operation pressure, feed temparature, pH value and salt concentration on separation performances was also studied. It is found that both the fl ux and rejection of PVA modifi ed PA-TFC nanofi ltration membranes increase with increasing feed temparature and pH value, and decrease with increasing salt concentration. In detail, the fl ux and rejection of PVA modifi ed PA-TFC nanofi ltration membranes are J water = 33.9 l/m 2 h, R chromic acid = 99.5% and R NaCl = 17.0% in simulated dye wastewater treatment at 25 o C and 0.6 Mpa operating pressure, indicating that they are effi cient in separating of negatively charged organic compounds and inorganic salts.

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Section: Introductionmentioning

confidence: 99%

Study on removal of organic matters in water by PVA modified PA-TFC nanofiltration membrane

et al. 2011

Desalination and Water Treatment

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“…Traditional applications for industrial membrane separations in liquid systems have been in an aqueous environment. NF has been widely applied in waste‐water treatment and drinking water production for many years, but it has also applications in the treatment of industrial effluents contaminated with organics or heavy metals, in food, and pharmaceutical industries . Organic solvent nanofiltration (OSN) is a more recent and challenging field, opening up new opportunities in the chemical and refining industries.…”

Section: Introductionmentioning

confidence: 99%

Application of organic solvent nanofiltration for microalgae extract concentration

Lopresto

Darvishmanesh

Ehsanzadeh

et al. 2016

Biofuels Bioprod Bioref

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Microalgae lipids hold significant potential as a biofuel feedstock. The high‐lipid content found in some species of microalgae is a major superiority over other sources. Furthermore, they have a high production rate record per area and survive in areas not already used for food production. This study considered the use of an integrated membrane process for oil extraction from microalgae. Different technologies were explored for laboratory‐scale microalgae oil extraction, including the use of organic solvents, but they would require a further purification. Organic solvent nanofiltration (ONF) was employed for separation of solvent from oil: the solvent passed through the dense polymeric membrane while oil molecules were rejected by the membrane. Since different organic solvents were used in literature for oil extraction from microalgae, this study examined different oil‐solvent mixtures and their separation by commercial hydrophobic and hydrophilic membranes. Experimental results showed that the new generation of ONF membranes has a superior performance compared to the previously used membranes. Based on rejection tests of oil in ethanol, isopropanol, and acetone, the applicability of the new commercial membranes for solvent recovery was demonstrated. Hydrophobic membranes had superior performances when oil was extracted using n‐hexane as the solvent, whereas methanol miscella had the highest flux and rejection in hydrophilic membranes. Finally, the conventional and hybrid approach were simulated in Aspen. The approach including nanofiltration saves around 97% of the energy requirements for the separation. In terms of economic costs, the conventional alternative is slightly more convenient in a short‐term situation. © 2016 Society of Chemical Industry and John Wiley & Sons, Ltd

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Determination of Flory interaction parameters between polyimide and organic solvents by HSP theory and IGC

Liu

Shi

2008

Polym. Bull.

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Concentration of benzylpenicillin sodium by polyimide nanofiltration membrane

Cited by 6 publications

References 13 publications

Study on removal of organic matters in water by PVA modified PA-TFC nanofiltration membrane

Study on removal of organic matters in water by PVA modified PA-TFC nanofiltration membrane

Application of organic solvent nanofiltration for microalgae extract concentration

Determination of Flory interaction parameters between polyimide and organic solvents by HSP theory and IGC

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