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Changes in the characteristics of organic compounds depending on the nitritation efficiency

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Abstract

This study focused on nitritation reactions for the removal of highly concentrated nitrogen from water recycled by a MWTP (Municipal Wastewater Treatment Plant) for the preparation of effluent standards which will be strengthened. To examine the changes that occur during a nitritation reaction with a variety of SRT operations when inducing a stable nitritation reaction, a reactor was operated on a laboratory scale in this study. Digestion tank supernatant flowed into a laboratory-scale reactor and organic matter in the effluent under various operation conditions was classified into four types according to ASM standards using the test known as the OUR (Oxygen Uptake Rate)-test. Most organic matter in the digestion tank supernatant appeared to consist of mainly the SI component out of non-biodegradable organic matter. During the operation period of the effluent in the laboratory-scale reactor, if a nitritation reaction occurs in a stable manner, most biodegradable organic matter is removed, consisting of mainly the SI component, like the influent. Particularly, nitrogen was removed after the SS was removed from the organic matters. Moreover, through a multiple correlation analysis between the operation results from a laboratory-scale reaction bath and the organic composition of the effluent, a method to predict the organic composition of effluents that relies on the operation result of the effluent is proposed.

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Authors and Affiliations

  1. School of Civil, Environmental and Architectural Engineering, Korea University, Anam-Dong 5ga, Seongbuk-Gu, Seoul, South Korea

    Jiyeol Im

  2. Department of Civil Engineering, Seoul National University of Science and Technology, Nowon-Gu, Seoul, 139-743, South Korea

    Kyungik Gil

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  1. Jiyeol Im
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  2. Kyungik Gil
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Correspondence to Kyungik Gil.

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Im, J., Gil, K. Changes in the characteristics of organic compounds depending on the nitritation efficiency. Environ Earth Sci 70, 1297–1305 (2013). https://doi.org/10.1007/s12665-013-2216-3

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  • DOI: https://doi.org/10.1007/s12665-013-2216-3

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