BEHAVIOUR OF A VAPOR-LIQUID MEDIUM IN NON-STATIONARY DYNAMIC CONDITIONS

1994 ◽  
Author(s):  
V. E. Nakoryakov ◽  
Nikolay A. Pribaturin ◽  
Sergey I. Lezhnin ◽  
B. G. Pokusaev
Keyword(s):  
Liquid Medium ◽  
Dynamic Conditions ◽  
Vapor Liquid

scholarly journals The Effect of Various Hydroxide and Salt Additives on the Reduction of Fluoride Ion Mobility in Industrial Waste

2021 ◽  
Vol 13 (3) ◽  
pp. 1554
Author(s):  
Tadas Dambrauskas ◽  
Kestutis Baltakys ◽  
Agne Grineviciene ◽  
Valdas Rudelis
Keyword(s):  
Liquid Medium ◽  
Silica Gel ◽  
Ion Mobility ◽  
Fluoride Removal ◽  
Dynamic Conditions ◽  
Treatment Conditions ◽  
Medium Flow ◽  
Silica Gel Waste ◽  
Fluorine Ions ◽  
Static Conditions

In this work, the influence of various hydroxide and salt additives on the removal of F− ions from silica gel waste, which is obtained during the production of AlF3, was examined. The leaching of the mentioned ions from silica gel waste to the liquid medium was achieved by the application of different techniques: (1) leaching under static conditions; (2) leaching under dynamic conditions by the use of continuous liquid medium flow; and (3) leaching in cycles under dynamic conditions. It was determined that the efficiency of the fluoride removal from this waste depends on the w/s ratio, the leaching conditions, and the additives used. It was proven that it is possible to reduce the concentration of fluorine ions from 10% to <5% by changing the treatment conditions and by adding alkaline compounds. The silica gel obtained after the leaching is a promising silicon dioxide source.

scholarly journals The Prospective Approach for the Reduction of Fluoride Ions Mobility in Industrial Waste by Creating Products of Commercial Value

2019 ◽  
Vol 11 (3) ◽  
pp. 634 ◽  
Author(s):  
Valdas Rudelis ◽  
Tadas Dambrauskas ◽  
Agne Grineviciene ◽  
Kestutis Baltakys
Keyword(s):  
Liquid Medium ◽  
Silica Gel ◽  
Reaction Temperature ◽  
Industrial Waste ◽  
Adsorption Properties ◽  
Raw Material ◽  
Fluoride Ions ◽  
Dynamic Conditions ◽  
Stable Compound ◽  
Silica Gel Waste

In this work, we present the possibility to reduce the amount of fluoride ions in silica gelwaste by using different techniques or to immobilize these ions by creating products ofcommercial value. The leaching of fluoride ions from silica gel waste to the liquid medium wasdone under static and dynamic conditions. It was determined that the removal of fluoride ionsfrom this compound depends on various factors, such as dissociation, solubility, the w/s ratio,reaction temperature, leaching conditions, the adsorption properties of silica gel waste, and others.The obtained results showed that, by applying different techniques, the quantity of fluoride ionscan be reduced by 60%, while obtained water was neutralized by calcium hydroxide.Additionally, it was determined that silica gel waste is a promising raw material for thehydrothermal synthesis of a stable compound containing fluoride ions – cuspidine.

Wave processes in a vapor-liquid medium, caused by the expansion of vapor cavity

2007 ◽  
Vol 45 (3) ◽  
pp. 363-369
Author(s):  
V. V. Kuznetsov ◽  
O. V. Vitovsky
Keyword(s):  
Liquid Medium ◽  
Wave Processes ◽  
Vapor Cavity ◽  
Vapor Liquid

Propagation of finite-amplitude pressure perturbations in a bubbling vapor-Liquid medium

1982 ◽  
Vol 23 (3) ◽  
pp. 387-392 ◽  
Author(s):  
V. E. Nakoryakov ◽  
B. G. Pokusaev ◽  
N. A. Pribaturin ◽  
I. R. Shreiber
Keyword(s):  
Liquid Medium ◽  
Finite Amplitude ◽  
Pressure Perturbations ◽  
Vapor Liquid

Simulation of wave processes in a vapor-liquid medium

2012 ◽  
Vol 5 (3) ◽  
pp. 213-221
Author(s):  
V. G. Gasenko ◽  
G. V. Demidov ◽  
V. P. Il’in ◽  
I. A. Shmakov
Keyword(s):  
Liquid Medium ◽  
Wave Processes ◽  
Vapor Liquid

scholarly journals The Growth of Streptococci in a Flowing Medium with Special Reference to Haemolysin Production

1929 ◽  
Vol 29 (3) ◽  
pp. 301-308
Author(s):  
R. J. V. Pulvertaft
Keyword(s):  
Surface Tension ◽  
Special Reference ◽  
Liquid Medium ◽  
Oxygen Tension ◽  
Growth Phase ◽  
Living Tissue ◽  
Dynamic Conditions ◽  
Flowing Medium ◽  
Normal Method ◽  
Tissue Fluids

The culture of organisms in a stagnant liquid medium, which is the normal method employed when the products of their metabolism are studied, has obvious disadvantages. The medium is constantly varying in its constituents and physical characteristics; prominent variations are oxygen tension, pH, food supplies and surface tension, and growth phase of the organism. Experimenters are constantly occupied in preparing nutritive media bearing closer analogy to living tissue fluids; but strangely enough little attention has been directed to maintaining the dynamic conditions obtaining when infection takes place. Yet such conditions may greatly modify the metabolism and general pathological activity of the organism.

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