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contributor authorHarald Klammler
contributor authorMohamed M. A. Mohamed
contributor authorKirk Hatfield
contributor authorJerry Achar
contributor authorJinho Jung
date accessioned2022-01-30T21:33:58Z
date available2022-01-30T21:33:58Z
date issued8/1/2020 12:00:00 AM
identifier other%28ASCE%29EE.1943-7870.0001736.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4268438
description abstractMicro and nano bubbles have increased water treatment efficiency in laboratory and field experiments due to the elevated pressure inside small bubbles and their large specific surface area, which enhance mass transfer into surrounding water. Existing theoretical studies are limited to size dynamics and stability of (mostly) single bubbles or transport of stable bubbles through porous media. We present a theoretical modeling approach combining bubble generation, stability, and treatment reaction mechanisms in batch reactors. We consider bubble dynamics as quasi-steady compared to other reaction time-scales involved. For a single treatment gas, we demonstrate two regimes (stable bubbles or not) in agreement with previous work. The critical transition point into the stable bubble regime is defined in terms of a minimum treatment substance concentration and minimum stable bubble radius. The results are discussed through hypothetical examples and further validated using existing ozone nanobubble batch experiment data for butylated hydroxytoluene (BHT) remediation.
publisherASCE
titleModeling Micro- and Nano-Bubble Stability and Treatment Mechanisms in Batch Reactors
typeJournal Paper
journal volume146
journal issue8
journal titleJournal of Environmental Engineering
identifier doi10.1061/(ASCE)EE.1943-7870.0001736
page10
treeJournal of Environmental Engineering:;2020:;Volume ( 146 ):;issue: 008
contenttypeFulltext


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