scholarly journals Determination of mass transfer resistances of fast reactions in three-phase mechanically agitated slurry reactors

AIChE Journal ◽  
2016 ◽  
Vol 63 (1) ◽  
pp. 273-282 ◽  
Author(s):  
Ilias K. Stamatiou ◽  
Frans L. Muller
Keyword(s):  
Mass Transfer ◽  
Slurry Reactors ◽  
Fast Reactions ◽  
Three Phase

Dynamic Technique to Determine Hexadecane Transfer Rate from Organic Phase to Aqueous Phase in a Three-Phase Bioreactor

2011 ◽  
Vol 9 (1) ◽  
Author(s):  
Manuel Alejandro Lizardi-Jiménez ◽  
Gerardo Saucedo-Castañeda ◽  
Frederic Thalasso ◽  
Mariano Gutiérrez-Rojas
Keyword(s):  
Mass Transfer ◽  
Aqueous Phase ◽  
Transfer Rate ◽  
Water Soluble ◽  
Airlift Bioreactor ◽  
Dynamic Technique ◽  
Three Phase ◽  
Consortium Culture

Determination of mass transfer of non-water soluble substrates, as hexadecane (HXD), is an important constraint in three-phase airlift bioreactor. A new simple dynamic technique able to measure the hexadecane transfer rate (HTR) in a three-phase airlift bioreactor (ALB) was studied in this work. The image analyses technique allowed measuring the resulting specific mass transfer area (aHXD). Gas chromatography was used to measure time-dependent transferred HXD and therefore the HXD transfer coefficient (kLHXD). Finally, HTR was calculated by using the equation HTR = kLaHXD•(CHXD* - CHXD) where CHXD* and CHXD are the saturation HXD-aqueous interphase and HXD aqueous phase concentration, respectively. As case study, we successfully applied to the measurement of HTR during a typical ALB microbial consortium culture; values from 0.010 to 0.042 mg HXD (L h)-1 were found. This technique could be used to compare similar simultaneously occurring parameters to assess mass transfer constraints in three-phase systems.

Determination of estrogens in wastewater using three-phase hollow fiber-mediated liquid-phase microextraction followed by HPLC

2008 ◽  
Vol 31 (4) ◽  
pp. 622-628 ◽  
Author(s):  
Meihua Liu ◽  
Bin Qiu ◽  
Xia Jin ◽  
Lan Zhang ◽  
Xi Chen ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Hollow Fiber ◽  
Liquid Phase Microextraction ◽  
Three Phase
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