The Determination of Dissolved Oxygen Concentration in Stationary Water

2013 ◽  
Vol 436 ◽  
pp. 233-237 ◽  
Author(s):  
Ionela Mihaela Căluşaru ◽  
Nicolae Băran ◽  
Adrian Costache
Keyword(s):  
Differential Equation ◽  
Dissolved Oxygen ◽  
Oxygen Concentration ◽  
Experimental Tests ◽  
Laboratory Measurements ◽  
Dissolved Oxygen Concentration ◽  
Fine Bubble ◽  
Integrated Software ◽  
Theoretical Results

In the paper the differential equation of the transfer speed of the oxygen towards water is numerically integrated, software is written and theoretical results are presented. A setup for experimental tests regarding the functioning of fine bubble generators was designed and built in the frame of the Department of Thermotechnics, Engines, Thermic and Refrigeration Plants laboratory. Measurements regarding the increase of the concentration of oxygen dissolved in water were performed. Theoretical and experimental results were compared.

The Influence of the Constructive Solution of Fine Bubble Generators on the Concentration of Oxygen Dissolved in Water

2012 ◽  
Vol 538-541 ◽  
pp. 2304-2310 ◽  
Author(s):  
Ionela Mihaela Căluşaru ◽  
Nicolae Băran ◽  
Alexandru Pătulea
Keyword(s):  
Differential Equation ◽  
Experimental Tests ◽  
Experimental Results ◽  
Laboratory Measurements ◽  
Constructive Solution ◽  
Fine Bubble ◽  
Original Construction ◽  
Theoretical Results

Original construction solutions for two types of fine bubble generators whose nozzles are manufactured by electroerosion are presented. The differential equation of the transfer speed of the oxygen towards water is numerically integrated and theoretical results are presented. A setup for experimental tests regarding the functioning of fine bubble generators was designed and built in the frame of the laboratory. Measurements regarding the increase of the concentration of oxygen dissolved in water were performed. Theoretical and experimental results were compared.

Spectrophotometric Determination of Dissolved Oxygen Concentration in Water

1974 ◽  
Vol 31 (9) ◽  
pp. 1529-1530 ◽  
Author(s):  
W. S. Duval ◽  
P. J. Brockington ◽  
M. S. von Melville ◽  
G. H. Geen
Keyword(s):  
Dissolved Oxygen ◽  
Oxygen Concentration ◽  
Spectrophotometric Determination ◽  
Iodine Concentration ◽  
Colorimetric Determination ◽  
Dissolved Oxygen Concentration ◽  
Winkler Method ◽  
Time Required

A modification of the Winkler method which increases precision while decreasing time required for oxygen analysis is described. The technique involves colorimetric determination of liberated iodine concentration at 287.5 nm.

scholarly journals Influence of Fine Bubble Generator Architecture on Time Variation of Dissolved Oxygen Concentration in Water

2019 ◽  
Vol 70 (6) ◽  
pp. 2132-2135
Author(s):  
Nicolae Baran ◽  
Mihaela Constantin ◽  
Beatrice Tanase ◽  
Edgar Moraru ◽  
Corina Ioana Moga
Keyword(s):  
Dissolved Oxygen ◽  
Oxygen Concentration ◽  
Time Variation ◽  
Experimental Results ◽  
Dissolved Oxygen Concentration ◽  
Fine Bubble ◽  
Experimental Researches ◽  
Good Coincidence

The paper presents two constructive solutions in the field of fine bubble generators that serve to aerate the water. Two installations for experimental researches have been designed and built in connection with the two constructive solutions. The dissolved oxygen concentration was experimentally determined. The theoretical and experimental results for the two constructive solutions are compared showing a good coincidence in relation to the results reported in the literature.

Modification of Winkler's method for determination of dissolved oxygen concentration in small sample volumes

2010 ◽  
Vol 2 (10) ◽  
pp. 1618 ◽  
Author(s):  
Amritanshu Shriwastav ◽  
Guttapati Sudarsan ◽  
Purnendu Bose ◽  
Vinod Tare
Keyword(s):  
Dissolved Oxygen ◽  
Oxygen Concentration ◽  
Small Sample ◽  
Dissolved Oxygen Concentration
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