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Sensors 2010, 10(1), 254-265; doi:10.3390/s100100254

Spectroscopic and Chromatographic Characterization of Wastewater Organic Matter from a Biological Treatment Plant

1
Department of Earth and Environmental Sciences, Sejong University, 98 Gunja-dong, Gwangjin-ku, Seoul, 143-747, Korea
2
Locus Solution Co., Ltd., DMC high-tech center, Seoul, 121-270, Korea
*
Author to whom correspondence should be addressed.
Received: 2 November 2009 / Revised: 27 November 2009 / Accepted: 23 December 2009 / Published: 29 December 2009
(This article belongs to the Section Chemical Sensors)
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Abstract

Spectroscopic and chromatographic changes in dissolved organic matter (DOM) characteristics of influent and treated sewage were investigated for a wastewater treatment plant (WWTP) with a biological advanced process. Refractory DOM (R-DOM) was defined as the dissolved organic carbon concentrations of the samples after 28-day incubation for this study. Specific UV absorbance (SUVA), hydrophobicity, synchronous fluorescence spectra and molecular weight (MW) distributions were selected as DOM characteristics. The percent distribution of R-DOM for the effluent was much higher than that of the influent, indicating that biodegradable DOM was selectively removed during the process. Comparison of the influent versus the effluent sewage revealed that SUVA, fulvic-like fluorescence (FLF), humic-like fluorescence (HLF), the apparent MW values were enhanced during the treatment. This suggests that more aromatic and humic-like compounds were enriched during the biological process. No significant difference in the DOM characteristics was observed between the original effluent (i.e., prior to the incubation) and the influent sewage after the incubation. This result suggests that the major changes in wastewater DOM characteristics occurring during the biological advanced process were similar to those for simple microbial incubation. View Full-Text
Keywords: wastewater; refractory organic matter; specific UV absorbance; fluorescence; molecular weight distribution wastewater; refractory organic matter; specific UV absorbance; fluorescence; molecular weight distribution
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Park, M.-H.; Lee, T.-H.; Lee, B.-M.; Hur, J.; Park, D.-H. Spectroscopic and Chromatographic Characterization of Wastewater Organic Matter from a Biological Treatment Plant. Sensors 2010, 10, 254-265.

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