Absorption of nitrogen dioxide by PVDF hollow fiber membranes in a G–L contactor

Park, Hyun Hee; Deshwal, Bal Raj; Jo, Hang Dae; Choi, Won Kil; Kim, In Won; Lee, Hyung Keun

doi:10.1016/j.desal.2008.04.014

Cited by 60 publications

(24 citation statements)

References 42 publications

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“…4, it is noticed that membrane with high stripping flux produced higher stripping efficiency as the outlet concentration of liquid decreased with increasing liquid velocity. In addition, higher operating temperature of 80 1C may shift the dissolved CO 2 concentration to lower position (decrease in CO 2 solubility in aqueous solution) thus promoting the transfer of CO 2 from liquid to gas phase [40]. Membrane with PEG-400, PA, glycerol and plain PVDF showed stripping efficiency of more than 50%.…”

Section: Membrane Stripping Test Performance and Overall Mass Tranfermentioning

confidence: 98%

Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping

Naim

Ismail

Mansourizadeh

2012

Journal of Membrane Science

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Section: Membrane Stripping Test Performance and Overall Mass Tranfermentioning

confidence: 98%

Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping

Naim

Ismail

Mansourizadeh

2012

Journal of Membrane Science

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“…Membrane contactors allow direct contact and mass transfer between gaseous and liquid phases without dispersing one phase into the other [9].…”

Section: Introductionmentioning

confidence: 99%

Recovery of Ammonium Salt from Nitrate-Containing Water by Iron Nanoparticles and Membrane Contactor

Hwang¹,

Kim²,

Ahn³

et al. 2012

Environmental Engineering Research

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This study investigates the complete removal of nitrate and the recovery of valuable ammonium salt by the combination of nanoscale zero-valent iron (NZVI) and a membrane contactor system. The NZVI used for the experiments was prepared by chemical reduction without a stabilizing agent. The main end-product of nitrate reduction by NZVI was ammonia, and the solution pH was stably maintained around 10.5. Effective removal of ammonia was possible with the polytetrafluoroethylene membrane contactor system in all tested conditions. Among the various operation parameters including influent pH, concentration, temperature, and contact time, contact time and solution pH showed significant effects on the ammonia removal mechanism. Also, the osmotic distillation phenomena that deteriorate the mass transfer efficiency could be minimized by pre-heating the influent wastewater. The ammonia removal rate could be maximized by optimizing operation conditions and changing the membrane configuration. The combination of NZVI and the membrane contactor system could be a solution for nitrate removal and the recovery of valuable products.

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“…기체분리막 제조 및 모듈 본 연구에서는 건/습식 상전이법(dry-wet phase inversion method) 을 이용하여 중공사 형태의 폴리이미드와 폴리이써설폰 막을 제조 하였다 [10][11][12]. 도프용액 조성 및 중공사막 제조 조건은 Table 2에 나타내었으며 중공사막 제조 방법은 이전에 투고된 논문 [13,14] Gas molecular data…”

Section: 실험장치 및 방법unclassified

A Study on the Permeance Through Polymer Membranes and Selectivity of CH₄/N₂

Park¹,

Kim²,

Lee³

et al. 2011

Korean Chemical Engineering Research

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− In this research, hollow fiber membranes were used in order to investigate to permeation and selectivity of the CH 4 and N 2 . Polyimide and polyethersulfone hollow fiber membrane were prepared by the dry-wet phase inversion method and the module was manufactured by fabricating fibers after surface coating with silicone elastomer. The scanning electron microscopy (SEM) studies showed that the produced fibers typically had an asymmetric structure. The permeance of CH 4 and N 2 were increased with pressure and temperature. However, the selectivity was decreased with increasing temperature. The permeances of CH 4 and N 2 were decreased with increasing the air gap and the effect of posttreatment on membrane showed the increase in permeance up to 3.2~7.0 times.

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Absorption of nitrogen dioxide by PVDF hollow fiber membranes in a G–L contactor

Cited by 60 publications

References 42 publications

Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping

Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping

Recovery of Ammonium Salt from Nitrate-Containing Water by Iron Nanoparticles and Membrane Contactor

A Study on the Permeance Through Polymer Membranes and Selectivity of CH₄/N₂

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Absorption of nitrogen dioxide by PVDF hollow fiber membranes in a G–L contactor

Cited by 60 publications

References 42 publications

Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping

Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping

Recovery of Ammonium Salt from Nitrate-Containing Water by Iron Nanoparticles and Membrane Contactor

A Study on the Permeance Through Polymer Membranes and Selectivity of CH4/N2

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Product

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A Study on the Permeance Through Polymer Membranes and Selectivity of CH₄/N₂