Journal of Water and Environment Technology
Online ISSN : 1348-2165
ISSN-L : 1348-2165
Original Papers
Significance of Reactor Type for High-Rate Nitrification Using Aerobic Granular Sludge
Yoshiaki HASEBEMasahiro EGUCHIHiroaki MEGUROSatoshi TSUNEDA
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2011 Volume 9 Issue 3 Pages 289-296


Nitrifying granules were applied to high-speed nitrification of wastewater discharged from an electronic industrial factory. The behavior of the formation of nitrifying granules and the start-up performance of nitrification process were examined with three types of reactors: a column with a small diameter, a column with a large diameter and a rectangular-type reactor. As a result, the performance of the three types of reactors did not give significant differences in terms of the formation of nitrifying granules and the start-up trend of the reactor. A nitrification rate of about 2.0 kgN/m3/day was achieved in all reactors.

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© 2011 Japan Society on Water Environment
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