Improvement of technology for obtaining sugar-containing sorghum syrup with the use of membrane methods

2020 ◽  
Vol 26 (1) ◽  
pp. 142-152
Author(s):  
N. Hryhorenko ◽  
N. Husiatynska ◽  
P. Vakuliuk ◽  
V. Chibrikov
Keyword(s):  
Membrane Methods

THE PELTIER EFFECT AND ITS USE FOR DETERMINING RELATIVE ACTIVITY OF SOIL WATER

1959 ◽  
Vol 39 (1) ◽  
pp. 76-85 ◽  
Author(s):  
H. C. Korven ◽  
S. A. Taylor
Keyword(s):  
Relative Activity ◽  
Dew Point ◽  
Peltier Effect ◽  
Silty Clay ◽  
Constant Temperature Bath ◽  
Clay Loam Soil ◽  
Silty Clay Loam ◽  
Laboratory Procedure ◽  
Loam Soil ◽  
Membrane Methods

An apparatus is described which involves the use of a small thermocouple, cooled to the dew point by the Peltier effect, as a means of determining the relative activity of water in soils.Thermocouples were calibrated over a series of sulphuric acid solutions immersed in a constant temperature bath controlled to within 0.003 °C. The temperature of the bath for all readings was 25 °C. Readings were taken over Benjamin silty clay loam soil samples that had been brought to desired soil moisture relative activities by the pressure plate and pressure membrane methods. The following conclusions were reached:1. The thermocouple technique shows promise as a laboratory procedure for determining the relative activity of water in soils.2. The majority of the results showed a gradual lowering of the readings with time. This was overcome at the expense of speed by treating the thermocouple with a plastic spray paint.3. More study and testing are required before the technique can be considered a completely satisfactory procedure.

scholarly journals The treatment of urban wastewaters by membrane methods

2016 ◽  
pp. 112-116
Author(s):  
O.O. Seminska ◽  
◽  
D.D. Kucheruk ◽  
M.M. Balakina ◽  
V.V. Goncharuk ◽  
...  
Keyword(s):  
Membrane Methods

A comparison of Centrifugal and Membrane-based Apheresis Formats

1984 ◽  
Vol 7 (1) ◽  
pp. 35-38 ◽  
Author(s):  
H.J. Gurland ◽  
M.J. Lysaght ◽  
W. Samtleben ◽  
B. Schmidt
Keyword(s):  
Free Product ◽  
Whole Blood ◽  
Plasma Proteins ◽  
Membrane Filter ◽  
The Other ◽  
Centrifugal Method ◽  
Protein Clearance ◽  
Continuous Centrifugation ◽  
Membrane Methods ◽  
Physical Principles

Membrane and centrifugal apheresis operate on different physical principles but are both capable of efficiently fractionating plasma proteins from whole blood. For therapeutic purposes, both formats yield about the same protein clearance per liter of solute exchanged and neither is significantly more rapid than the other. Only continuous centrifugation can be used to pherese cellular elements and only membrane filter can be deployed in ‘spontaneous’ circuits. Hardware for continuous centrifugation is more expensive and disposables less expensive than for the membrane methods; the ‘crossover’ occurs at 200 treatments. To date, only the centrifugal method is employed for donor apheresis; this may change in the future as membranes can yield a truly platelet-free product and appear to offer a much more rapid collection cycle.

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