Mathematical Models for Overall Gas Transfer Coefficient Using Different Theories and Evaluating Their Measurement Accuracy
Oxygen transfer, the process by which oxygen is
transferred from the gaseous to liquid phase, is a vital part of the
waste water treatment process. Because of low solubility of
oxygen and consequent low rate of oxygen transfer, sufficient
oxygen to meet the requirement of aerobic waste does not enter
through normal surface air water interface. Many theories have
come up in explaining the mechanism of gas transfer and
absorption of non-reacting gases in a liquid, of out of which, Two
film theory is important. An exiting mathematical model
determines approximate value of Overall Gas Transfer coefficient.
The Overall Gas Transfer coefficient, in case of Penetration theory,
is 1.13 time more than that obtained in case of Two film theory.
The difference is due to the difference in assumptions in the two
theories.
The paper aims at development of mathematical model which
determines the value of Overall Gas Transfer coefficient with
greater accuracy than the existing model.
[1] Wesner, G.M., Ewing, J. J., Lineck, T.S.,Jr., and Hinrichs, D.J.1977.
"Energy conservation in municipal wastewater treatment." EPA-130/9-
77-011, NTIS No PB81-165391, U.S. EPA Res., Washington, D.C.
[2] O- Conner. D.J. " Biological waste Treatment". John Wiley & sons,
Inc., New York. P.76.
[3] Metcalf and Eddy Inc. (2001). Waste water Engineering; Treatment
disposal and reuse. Tata McGraw Hill. New Delhi, India.
[4]. Rich Linvil, G., (1961). "Unit operations of sanitary Engineering",
John Wiley & sons, Inc. London, P.171.
[5] Enkenfelder, W.W.Jr, " Aeration and Mass transfer", Ind. Water
pollution control, McGraw Hill Inc., p.65.
[6]. Fair, G.M., Gayer, J.C., (1976). "Water supply and Waste water
disposal, John Wiley & sons, Inc., New York. P. 450.
[7] Rajkumar, (1991)." Oxygen Transfer through Mechanical Aeration".
M.E. Thesis. University of Roorkee. Roorkee. India.
[1] Wesner, G.M., Ewing, J. J., Lineck, T.S.,Jr., and Hinrichs, D.J.1977.
"Energy conservation in municipal wastewater treatment." EPA-130/9-
77-011, NTIS No PB81-165391, U.S. EPA Res., Washington, D.C.
[2] O- Conner. D.J. " Biological waste Treatment". John Wiley & sons,
Inc., New York. P.76.
[3] Metcalf and Eddy Inc. (2001). Waste water Engineering; Treatment
disposal and reuse. Tata McGraw Hill. New Delhi, India.
[4]. Rich Linvil, G., (1961). "Unit operations of sanitary Engineering",
John Wiley & sons, Inc. London, P.171.
[5] Enkenfelder, W.W.Jr, " Aeration and Mass transfer", Ind. Water
pollution control, McGraw Hill Inc., p.65.
[6]. Fair, G.M., Gayer, J.C., (1976). "Water supply and Waste water
disposal, John Wiley & sons, Inc., New York. P. 450.
[7] Rajkumar, (1991)." Oxygen Transfer through Mechanical Aeration".
M.E. Thesis. University of Roorkee. Roorkee. India.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:51531", author = "Shashank.B. Thakre and Lalit.B. Bhuyar and Samir.J. Deshmukh", title = "Mathematical Models for Overall Gas Transfer Coefficient Using Different Theories and Evaluating Their Measurement Accuracy", abstract = "Oxygen transfer, the process by which oxygen is
transferred from the gaseous to liquid phase, is a vital part of the
waste water treatment process. Because of low solubility of
oxygen and consequent low rate of oxygen transfer, sufficient
oxygen to meet the requirement of aerobic waste does not enter
through normal surface air water interface. Many theories have
come up in explaining the mechanism of gas transfer and
absorption of non-reacting gases in a liquid, of out of which, Two
film theory is important. An exiting mathematical model
determines approximate value of Overall Gas Transfer coefficient.
The Overall Gas Transfer coefficient, in case of Penetration theory,
is 1.13 time more than that obtained in case of Two film theory.
The difference is due to the difference in assumptions in the two
theories.
The paper aims at development of mathematical model which
determines the value of Overall Gas Transfer coefficient with
greater accuracy than the existing model.", keywords = "Theories, Dissolved oxygen, Mathematical model, Gas Transfer coefficient, Accuracy.", volume = "2", number = "1", pages = "1-5", }