Oxidized humic acids from the soil of heat power plant - Short Communication

Authors

DOI:

https://doi.org/10.2298/JSC190726099M

Keywords:

humic acid, microorganism, FTIR, contaminated soil

Abstract

Humic acids isolated from the soil of a heat power plant (HA-E) con­ta­minated with oil were analyzed by Fourier transform infrared spectroscopy (FTIR). In comparison with a humic acids standard (HA-S), a lack of an int­ense broad band of the stretching vibrations of hydrogen-bonded hydroxyl groups (3600–3200 cm-1) is evident. The HA-E spectra have a peak at 1649 cm-1, which could belong to carbonyl groups. HA-E are heavily oxidized and among the isolated microorganisms, Achromobacter denitrificans may be res­ponsible for such intensive oxidation of HA-E. To the phylogenetically diverse nitrate-reducing microorganisms that have the capacity to utilize reduced HA as electron donors in soils, A. denitrificans can be added.

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Published

2020-03-30

How to Cite

[1]
S. Miletić, “Oxidized humic acids from the soil of heat power plant - Short Communication”, J. Serb. Chem. Soc., vol. 85, no. 3, pp. 421-426, Mar. 2020.

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Section

Environmental Chemistry

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