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http://dx.doi.org/10.14481/jkges.2014.15.8.45

Reproducibility of Reaeration in Sewer using Batch Reactor Test  

Hwang, Hwankook (Construction Environment Research Division, Korea Institute of Construction Technology)
Min, Sangyun (Samchully Environment & Biotech Technology Institute)
Cho, Jinkyu (Department of Civil Engineering, Kimpo College)
Publication Information
Journal of the Korean GEO-environmental Society / v.15, no.8, 2014 , pp. 45-50 More about this Journal
Abstract
The microorganism decomposition experiment of sewage in the underground sewer has the limit of experiment condition and time. The way to reproduce the microorganism decomposition in the underground sewer was studied using batch reactor setting up the DO as a limiting condition. The DO concentration in the sewer is controlled by reaeration. It is possible to obtain correlation between flow condition and reaeration coefficient through the reproduction of reaeration phenomenon by controlling the flow condition in the sewer using this phenomenon. And it is possible to set the flow condition and agitation intensity (velocity gradient) that has the same reaeration coefficient using the correlation between the reaeration coefficient with the flow condition and reaeration coefficient with the agitation intensity. The circumstances in the sewer system was reproduced using batch reactor setting up the DO as a limiting condition from these results.
Keywords
Sewer; Batch Reactor; Reaeration coefficient; Velocity Gradient;
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