Surinder Deswal
Oxygen Transfer by Multiple Inclined Plunging Water Jets
57 - 63
2008
2
3
International Journal of Civil and Environmental Engineering
https://publications.waset.org/pdf/12552
https://publications.waset.org/vol/15
World Academy of Science, Engineering and Technology
There has been a growing interest in the oxygenation
by plunging water jets in the last few years due to their inherent
advantages, like energyefficient, low operation cost, etc. Though a
lot of work has been reported on the oxygentransfer by single
plunging water jets but very few studies have been carried out using
multiple plunging jets. In this paper, volumetric oxygentransfer
coefficient and oxygentransfer efficiency has been studied
experimentally for multiple inclined plunging jets (having jet plunge
angle of 60 0 ) in a pool of water for different configurations, in
terms of varying number of jets and jet diameters. This research
suggests that the volumetric oxygentransfer coefficient and oxygentransfer
efficiency of the multiple inclined plunging jets for airwater
system are significantly higher than those of a single vertical as well
as inclined plunging jet for same flow area and other similar
conditions. The study also reveals that the oxygentransfer increase
with increase in number of multiple jets under similar conditions,
which will be most advantageous and energyefficient in practical
situations when large volumes of wastewaters are to be treated. A
relationship between volumetric oxygentransfer coefficient and jet
parameters is also proposed. The suggested relationship predicts the
volumetric oxygentransfer coefficient for multiple inclined plunging
jet(s) within a scatter of ±15 percent. The relationship will be quite
useful in scaleup and in deciding optimum configuration of multiple
inclined plunging jet aeration system.
Open Science Index 15, 2008