TITLE

Modeling Air Entrainment Rate and Aeration Efficiency of Weirs Using ANN Approach

AUTHOR(S)
Baylar, Ahmet; Kisi, Ozgur; Emiroglu, M. Emin
PUB. DATE
April 2009
SOURCE
Gazi University Journal of Science;Apr2009, Vol. 22 Issue 2, p107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The concentration of dissolved oxygen is an important indicator of water quality because aquatic life lives on the dissolved oxygen in the water. A free overfall jet from a weir plunging into downstream water causes entrainment of the air bubbles if the free overfall jet velocity exceeds a certain critical value and hence aeration occurs. This paper investigates the free overfall jets from triangular sharp-crested weirs and their effect on the air entrainment rate and the aeration efficiency. The artificial neural network models, multi nonlinear and linear regression equations were obtained for the triangular sharp-crested weirs relating the air entrainment rate and the aeration efficiency to drop height, discharge, and angle in triangular sharp-crested weir. There were good agreements between the measured values and the values obtained using the artificial neural network and multi nonlinear regression models.
ACCESSION #
44255941

 

Related Articles

  • An Investigation of Effect of Stepped Chutes with End Sill on Aeration Performance. Emiroglu, M. Emin; Baylar, Ahmet // Water Quality Research Journal of Canada (Canadian Association o;2003, Vol. 38 Issue 3, p527 

    Dissolved oxygen is essential to healthy streams and lakes. The dissolved oxygen level is an indication of how polluted the water is and how well the water can support aquatic plant and animal life. A higher dissolved oxygen level indicates better water quality. There is a significant oxygen...

  • ENERGY SAVING IN THE AERATION PROCESS BY FUZZY LOGIC CONTROL. Ferrer, J.; Rodrigo, M.A.; Seco, A.; Penya-roja, J.M. // Water Science & Technology;1998, Vol. 38 Issue 3, p209 

    Develops an aeration fuzzy logic based control system in the main aerobic reactor. Energy savings in the aeration process; Average dissolved oxygen concentration; Total oxygen consumption.

  • Evaluation of deammonification process performance at different aeration strategies. Zubrowska-Sudol, M.; Yang, J.; Trela, J.; Plaza, E. // Water Science & Technology;2011, Vol. 63 Issue 6, p1168 

    In a deammonification process applied in the moving bed biofilm reactor (MBBR) oxygen is a crucial parameter for the process performance and efficiency. The objective of this study was to investigate different aeration strategies, characterised by the ratio between non-aerated and aerated phase...

  • DO Monitoring Plays Key Role in Aeration Basin Performance.  // WaterWorld;Apr2003, Vol. 19 Issue 4, p14 

    Discusses the role played by dissolved oxygen (DO) monitoring in aeration as in performance of wastewater treatment facilities. Importance of the maintenance of proper DO levels to keep microorganisms used to break down active sludge in aeration basins; Instrumentation; Membrane sensors; Open-...

  • Hydroacoustic Study of Spatial and Temporal Distribution of Poblana alchichica (de Buen, 1945) in Lake Alchichica, Mexico. Arce, E.; Alcocer, J.; Chiappa-Carrara, X.; Zambrano, L. // Journal of Fisheries & Aquatic Science;2011, Vol. 6 Issue 6, p624 

    The present study analyses the distribution and abundance of Poblana alchichica, an atherinidae fish endemic to Lake Alchichica. Fish were sampled using hydroacoustic surveys, carrying out equidistant transect performed on a perpendicular grid that covered the entire surface of the lake on a...

  • Impact of water quality on the stress physiology of cultured Labeo rohita (Hamilton- Buchanan). Dutta, Tanusree; Acharya, Subhendu; Das, Manas K. // Journal of Environmental Biology;Jul2005, Vol. 26 Issue 3, p585 

    Investigation was conducted for 12 months in two water bodies, S1 with optimum water quality and S2 receiving sewage water. The water quality parameters were assessed in relation to the impact on the stress sensitive physiological parameters of fish Labeo rohita. While optimum levels of...

  • surface aeration REVISITED.  // Processing (08968659);Oct2006, Vol. 19 Issue 10, p6 

    The article presents information on the invent of the wastewater aeration technology which improves the level of oxygen in water. The process of encouraging growth of aerobic microorganisms in wastewater is standardized by employing Standard Aeration Efficiency. In comparison with Membrane...

  • Optimum air-demand ratio for maximum aeration efficiency in high-head gated circular conduits. Ozkan, Fahri; Tuna, M. Cihat; Baylar, Ahmet; Ozturk, Mualla // Water Science & Technology;2014, Vol. 70 Issue 5, p871 

    Oxygen is an important component of water quality and its ability to sustain life. Water aeration is the process of introducing air into a body of water to increase its oxygen saturation. Water aeration can be accomplished in a variety of ways, for instance, closed-conduit aeration. High-speed...

  • Performance Evaluation of an Oxidation Ditch System with a Disc Aerator. Ghaly, Abdel; Thistle, Ashley // American Journal of Applied Sciences;2011, Vol. 8 Issue 7, p662 

    Problem statement: The oxidation ditch system has been used to treat various types of wastewater. Several types of aerators are used to supply the treatment process with oxygen. Among these devices, disc aerator has certain advantages regarding foam generation over the brush and paddle type...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics