Molecular theory of mass transfer kinetics and dynamics at gas–water interface

2008 ◽  
Vol 40 (7-8) ◽  
pp. 459-473 ◽  
Author(s):  
Akihiro Morita ◽  
Bruce C Garrett
Keyword(s):  
Mass Transfer ◽  
Molecular Theory ◽  
Water Interface ◽  
Mass Transfer Kinetics ◽  
Kinetics And Dynamics

The role of (bio)surfactant sorption in promoting the bioavailability of nutrients localized at the solid-water interface

1999 ◽  
Vol 39 (7) ◽  
pp. 91-98 ◽  
Author(s):  
Ryan N. Jordan ◽  
Eric P. Nichols ◽  
Alfred B. Cunningham
Keyword(s):  
Mass Transfer ◽  
Cell Membrane ◽  
Substrate Concentration ◽  
Water Interface ◽  
Industrial Systems ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Surfactant Sorption

Bioavailability is herein defined as the accessibility of a substrate by a microorganism. Further, bioavailability is governed by (1) the substrate concentration that the cell membrane “sees,” (i.e., the “directly bioavailable” pool) as well as (2) the rate of mass transfer from potentially bioavailable (e.g., nonaqueous) phases to the directly bioavailable (e.g., aqueous) phase. Mechanisms by which sorbed (bio)surfactants influence these two processes are discussed. We propose the hypothesis that the sorption of (bio)surfactants at the solid-liquid interface is partially responsible for the increased bioavailability of surface-bound nutrients, and offer this as a basis for suggesting the development of engineered in-situ bioremediation technologies that take advantage of low (bio)surfactant concentrations. In addition, other industrial systems where bioavailability phenomena should be considered are addressed.

Influence of beer flow rate on mass transfer kinetics in beer dialysis

1993 ◽  
Vol 7 (2) ◽  
pp. 123-126 ◽  
Author(s):  
I. Leskošek ◽  
M. Mitrović ◽  
V. Nedović
Keyword(s):  
Mass Transfer ◽  
Flow Rate ◽  
Mass Transfer Kinetics

A Model of Ultrafiltration and Glucose Mass Transfer Kinetics in Peritoneal Dialysis

1987 ◽  
Vol 11 (3) ◽  
pp. 198-207 ◽  
Author(s):  
M. Y. Jaffrin ◽  
R. A. Odell ◽  
P. C. Farrell
Keyword(s):  
Mass Transfer ◽  
Peritoneal Dialysis ◽  
Mass Transfer Kinetics

Mass transfer kinetics during osmotic dehydration of bananas (Musa sapientum, shum.)

2010 ◽  
Vol 45 (11) ◽  
pp. 2281-2289 ◽  
Author(s):  
Giovana D. Mercali ◽  
Isabel C. Tessaro ◽  
Caciano P. Z. Noreña ◽  
Lígia D. F. Marczak
Keyword(s):  
Mass Transfer ◽  
Osmotic Dehydration ◽  
Musa Sapientum ◽  
Mass Transfer Kinetics

MATHEMATICAL MODELING OF CONCRETE STRUCTURE CORROSION IN BIOLOGICALLY AGGRESSIVE ENVIRONMENTS

2021 ◽  
Vol 3 (102) ◽  
pp. 55-67
Author(s):  
VARVARA E. RUMYANTSEVA ◽  
SVETLANA A. LOGINOVA ◽  
NATALIA E. KARTSEVA
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Model ◽  
Mass Transfer ◽  
Parabolic Type ◽  
Cement Concrete ◽  
Mass Conductivity ◽  
Kinetics And Dynamics ◽  
Biological Corrosion ◽  
First Time ◽  
Fourth Kind

In the aquatic environment, biocorrosion is an important factor affecting the reliability and durability of concrete structures. The destruction of cement concretes during biological corrosion is determined by the processes of mass transfer. The article presents the development of a calculated mathematical model of liquid corrosion in cement concrete, taking into account the biogenic factor. For the first time, a model of mass transfer in an unbounded two-layer plate is considered in the form of differential equations of parabolic type in partial derivatives with boundary conditions of the second kind at the interface between concrete and liquid and of the fourth kind at the interface between concrete and biofilm. The results of a numerical experiment are presented to study the influence of the coefficients of mass conductivity and mass transfer on the kinetics and dynamics of the process.

Study of the mass transfer kinetics in a monolithic column

2003 ◽  
Vol 983 (1-2) ◽  
pp. 51-71 ◽  
Author(s):  
F. Gritti ◽  
W. Piatkowski ◽  
G. Guiochon
Keyword(s):  
Mass Transfer ◽  
Monolithic Column ◽  
Mass Transfer Kinetics
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