Headspace Microextraction of Sulfonamides from Honey by Hollow Fibers Coupled with Ultrasonic Nebulization

2016 ◽  
Vol 64 (7) ◽  
pp. 1627-1634 ◽  
Author(s):  
Rui Su ◽  
Xueyuan Li ◽  
Wenlong Liu ◽  
Xinghua Wang ◽  
Hongmei Yang
Keyword(s):  
Hollow Fibers ◽  
Ultrasonic Nebulization

Brine Dewatering Using Ultrasonic Nebulization

2011 ◽  
Author(s):  
James Akse ◽  
Richard Wheeler ◽  
John Holtsnider ◽  
John Fisher
Keyword(s):  
Ultrasonic Nebulization

Enterovirus Concentration Using Automated Hollow Fiber Ultrafiltration

1982 ◽  
Vol 14 (4-5) ◽  
pp. 257-272 ◽  
Author(s):  
G Belfort ◽  
A Paluszek ◽  
L S Sturman
Keyword(s):  
Drinking Water ◽  
Hollow Fiber ◽  
Enhanced Recovery ◽  
Tap Water ◽  
Membrane Surface ◽  
Creeping Flow ◽  
Hollow Fibers ◽  
Virus Concentration ◽  
Concentration Technique ◽  
Solution Interface

The Automated Hollow Fiber Ultrafiltration (AHFU) method is proposed here as a simple, efficient and rapid virus concentration technique from tap and drinking water sources. The results reported here extend the testing of the AHFU method to include two Picornaviruses [Poliovirus 2 (vaccine) and Echovirus 1] and Reovirus 3. Their respective mean virus recoveries from between 3 and 100 l of tap water is 88 ± 26, 79 ± 60, and 104 ± 48%. Various approaches including membrane surface modification, changes in backwash hydrodynamics, modification of the feed and backwash composition, and the use of S35-methionine labelled Poliovirus 2, are used to study the recovery of sorbed Poliovirus 2 from the hollow fiber/solution interface. An increase in the backwash pH to between 9.5 and 10.5 significantly improved Poliovirus 2 recovery. This, together with the labelled experiments, indicates that the virus-membrane interactions are probably electrostatic in nature. Convective polarization during filtration probably brings the virus close enough to the surface for these interactions to occur since virus losses were not detected for a non-permeation recycle experiment. Because very low Reynold's numbers are used, the flow is in the creeping-flow-regime for both filtration and backwashing (axial and radial). Unless significantly higher Reynolds could be used, enhanced recovery due to purely hydrodynamic forces is unlikely. High Reynold's numbers, of course, are limited by the pressure constraints of the hollow fibers.

Electrospun-based TiO2 nanofibers for organic pollutant photodegradation: a comprehensive review

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Khee Chung Hui ◽  
Hazwani Suhaimi ◽  
Nonni Soraya Sambudi
Keyword(s):  
Visible Light ◽  
Organic Pollutants ◽  
Organic Pollutant ◽  
Hollow Fibers ◽  
Promising Alternative ◽  
Tio2 Nanofibers ◽  
As Doping ◽  
Secondary Pollutants ◽  
Photocatalytic Reactors ◽  
Light Area

Abstract Titanium dioxide (TiO2) is commonly used as a photocatalyst in the removal of organic pollutants. However, weaknesses of TiO2 such as fast charge recombination and low visible light usage limit its industrial application. Furthermore, photocatalysts that are lost during the treatment of pollutants create the problem of secondary pollutants. Electrospun-based TiO2 fiber is a promising alternative to immobilize TiO2 and to improve its performance in photodegradation. Some strategies have been employed in fabricating the photocatalytic fibers by producing hollow fibers, porous fibers, composite TiO2 with magnetic materials, graphene oxide, as well as doping TiO2 with metal. The modification of TiO2 can improve the absorption of TiO2 to the visible light area, act as an electron acceptor, provide large surface area, and promote the phase transformation of TiO2. The improvement of TiO2 properties can enhance carrier transfer rate which reduces the recombination and promotes the generation of radicals that potentially degrade organic pollutants. The recyclability of fibers, calcination effect, photocatalytic reactors used, operation parameters involved in photodegradation as well as the commercialization potential of TiO2 fibers are also discussed in this review.

Polyvinyl butyral‐zirconia hybrid hollow fibers prepared by air gap spinning

2020 ◽  
Vol 138 (14) ◽  
pp. 50164
Author(s):  
Anamul Hoque Bhuiyan ◽  
Takuma Nagakawa ◽  
Koji Nakane
Keyword(s):  
Polyvinyl Butyral ◽  
Air Gap ◽  
Hollow Fibers

Removal of CO2 from biogas by membrane contactor using PTFE hollow fibers with smaller diameter

2021 ◽  
Vol 627 ◽  
pp. 119232
Author(s):  
Mei Li ◽  
Zhihao Zhu ◽  
Meiqing Zhou ◽  
Xingming Jie ◽  
Lina Wang ◽  
...  
Keyword(s):  
Hollow Fibers ◽  
Membrane Contactor

Experimental study on the durability of dielectric-coated silver hollow fibers for corrosive gas sensing

2010 ◽  
Author(s):  
Wen-Qing Shao ◽  
Qing-Yun Chen ◽  
Bang-Shan Sun ◽  
Xiao-Xu Wu ◽  
Yi-Wei Shi
Keyword(s):  
Experimental Study ◽  
Gas Sensing ◽  
Hollow Fibers

Optimal pulse compression in long hollow fibers

2011 ◽  
Vol 36 (22) ◽  
pp. 4422 ◽  
Author(s):  
Tamas Nagy ◽  
Vladimir Pervak ◽  
Peter Simon
Keyword(s):  
Pulse Compression ◽  
Hollow Fibers
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