Compactness-tailored hollow fiber loose nanofiltration separation layers based on “chemical crosslinking and metal ion coordination” for selective dye separation

2021 ◽  
Vol 620 ◽  
pp. 118948
Author(s):  
Lei Bian ◽  
Cong Shen ◽  
Chenyang Song ◽  
Shuai Zhang ◽  
Zhenyu Cui ◽  
...  
Keyword(s):  
Hollow Fiber ◽  
Metal Ion ◽  
Chemical Crosslinking ◽  
Separation Layers

Chromatographic Characterization of Immobilized Metal Ion Hollow-Fiber Affinity Membranes Obtained by Direct Grafting

1998 ◽  
Vol 21 (9) ◽  
pp. 1283-1294 ◽  
Author(s):  
S. A. Camperi ◽  
M. Grasselli ◽  
A. A. Navarro del Cañizo ◽  
E. E. Smolko ◽  
O. Cascone
Keyword(s):  
Hollow Fiber ◽  
Metal Ion ◽  
Affinity Membranes ◽  
Chromatographic Characterization

scholarly journals Advances and Applications of Hollow Fiber Nanofiltration Membranes: A Review

Membranes ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 890
Author(s):  
Tim Sewerin ◽  
Maria G. Elshof ◽  
Sonia Matencio ◽  
Marcel Boerrigter ◽  
Jimmy Yu ◽  
...  
Keyword(s):  
Drinking Water ◽  
Hollow Fiber ◽  
Municipal Wastewater ◽  
Industrial Applications ◽  
Global Market ◽  
Special Focus ◽  
Extreme Conditions ◽  
Nanofiltration Membranes ◽  
Separation Layers ◽  
Spiral Wound

Hollow fiber nanofiltration (NF) membranes have gained increased attention in recent years, partly driven by the availability of alternatives to polyamide-based dense separation layers. Moreover, the global market for NF has been growing steadily in recent years and is expected to grow even faster. Compared to the traditional spiral-wound configuration, the hollow fiber geometry provides advantages such as low fouling tendencies and effective hydraulic cleaning possibilities. The alternatives to polyamide layers are typically chemically more stable and thus allow operation and cleaning at more extreme conditions. Therefore, these new NF membranes are of interest for use in a variety of applications. In this review, we provide an overview of the applications and emerging opportunities for these membranes. Next to municipal wastewater and drinking water processes, we have put special focus on industrial applications where hollow fiber NF membranes are employed under more strenuous conditions or used to recover specific resources or solutes.

Effect of polyacrylonitrile hollow fiber modified membrane on heavy metal ion adsorption

2020 ◽  
Vol 563 (1) ◽  
pp. 95-102
Author(s):  
Xue-Xue Han ◽  
Shu-Jing Yang ◽  
Xin-Feng Zhang ◽  
Song Wang ◽  
Hai-Lin Cong ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Hollow Fiber ◽  
Metal Ion ◽  
Heavy Metal Ion ◽  
Ion Adsorption ◽  
Metal Ion Adsorption ◽  
Modified Membrane

Evaluation of IDA-PEVA hollow fiber membrane metal ion affinity chromatography for purification of a histidine-tagged human proinsulin

2006 ◽  
Vol 834 (1-2) ◽  
pp. 68-76 ◽  
Author(s):  
Luciana Cristina Lins de Aquino ◽  
Heloisa Ribeiro Tunes de Sousa ◽  
Everson Alves Miranda ◽  
Luciano Vilela ◽  
Sônia Maria Alves Bueno
Keyword(s):  
Affinity Chromatography ◽  
Hollow Fiber ◽  
Metal Ion ◽  
Hollow Fiber Membrane ◽  
Fiber Membrane ◽  
Human Proinsulin ◽  
Metal Ion Affinity Chromatography

Novel Hollow Fiber Membrane Contactors Used in Waste Treatment

2011 ◽  
Vol 233-235 ◽  
pp. 431-434
Author(s):  
Chun Fang Lai ◽  
Guo Liang Zhang ◽  
Xin Jiang Sheng ◽  
Hai Min Sun ◽  
Lu Sheng Xu ◽  
...  
Keyword(s):  
Hollow Fiber ◽  
Metal Ion ◽  
Waste Treatment ◽  
Hollow Fiber Membrane ◽  
Interfacial Area ◽  
High Flow ◽  
Low Flow ◽  
Fiber Membrane ◽  
Flow Rates ◽  
Membrane Contactors

Novel membrane contactors offer a number of important advantages over conventional dispersed phase contactors, including absence of emulsions, no flooding at high flow rates, no unloading at low flow rates, no density difference between fluids required, and surprisingly high interfacial area. Based on the former work of our group, this paper provides a general review of recent progress in the application of hollow fiber membrane contactors in liquid/liquid and gas/liquid separation and in the environmental waste treatment including VOCs and CO2 separation, metal ion recovery, and alcohol purification.

Aspects of high-resolution imaging with a scanning ion microprobe

1986 ◽  
Vol 44 ◽  
pp. 750-751
Author(s):  
R. Levi-Setti ◽  
J. M. Chabala ◽  
Y. L. Wang
Keyword(s):  
Metal Ion ◽  
Secondary Ion Mass Spectrometry ◽  
Chromatic Aberration ◽  
Ion Source ◽  
Ion Microprobe ◽  
Emission Pattern ◽  
Intrinsic Resolution ◽  
Resolution Imaging ◽  
20 Nm ◽  
Secondary Ion

We have shown the feasibility of 20 nm lateral resolution in both topographic and elemental imaging using probes of this size from a liquid metal ion source (LMIS) scanning ion microprobe (SIM). This performance, which approaches the intrinsic resolution limits of secondary ion mass spectrometry (SIMS), was attained by limiting the size of the beam defining aperture (5μm) to subtend a semiangle at the source of 0.16 mr. The ensuing probe current, in our chromatic-aberration limited optical system, was 1.6 pA with Ga+ or In+ sources. Although unique applications of such low current probes have been demonstrated,) the stringent alignment requirements which they imposed made their routine use impractical. For instance, the occasional tendency of the LMIS to shift its emission pattern caused severe misalignment problems.

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