Journal of Water and Environment Technology
Online ISSN : 1348-2165
Original Papers
Evaluation of the Characteristics of Microorganisms that Contribute to Denitrification in the Paddy Drainage Treatment Apparatus by Quinone Composition Measurement
Koji HAMADAAsa MIURAMasafumi FUJITATadayoshi HITOMITomijiro KUBOTAEisaku SHIRATANI
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Volume 8 (2010) Issue 4 Pages 421-427

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Abstract

The relation between the denitrification rate and quinone compositions of the microorganisms in the water treatment apparatus for paddy drainage was evaluated. Q-8 content, the highest ubiquinone, had the strongest correlation coefficient between the denitrification rate (DNR) and the detected ubiquinone. MK-7 had the strongest correlation with DNR among the detected menaquinones. From the results of principal component analysis for DNR using quinone content as the variables, the first principal components were Q-8 and Q-9, and the second principal component was MK-8. Q-8, Q-9, MK-7 and MK-8 containing bacteria strongly contribute to DNR in the water treatment apparatus and around the paddy environment.

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© 2010 Japan Society on Water Environment
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