Очистка сточных вод путем окислительной деструкции органических соединений реактивом Фентона

I. A.  Vasilieva; L. K.  Gustyleva; N. A.  Samchenko; A. I.  Ukolov; E. I.  Savelieva

doi:10.25514/CHS.2019.2.16014

I. A. Vasilieva Research Institute of Hygiene, Occupational Pathology and Human Ecology of Federal Medical and Biological Agency, Leningrad region, Russia https://orcid.org/0000-0002-4931-4479
L. K. Gustyleva Research Institute of Hygiene, Occupational Pathology and Human Ecology of Federal Medical and Biological Agency, Leningrad region, Russia https://orcid.org/0000-0002-7794-8639
N. A. Samchenko Research Institute of Hygiene, Occupational Pathology and Human Ecology of Federal Medical and Biological Agency, Leningrad region, Russia https://orcid.org/0000-0003-4842-2053
A. I. Ukolov Research Institute of Hygiene, Occupational Pathology and Human Ecology of Federal Medical and Biological Agency, Leningrad region, Russia https://orcid.org/0000-0002-2911-1260
E. I. Savelieva Research Institute of Hygiene, Occupational Pathology and Human Ecology of Federal Medical and Biological Agency, Leningrad region, Russia https://orcid.org/0000-0002-3115-9626

DOI: https://doi.org/10.25514/CHS.2019.2.16014

Keywords: waste water, organic toxicants, water treatment, oxidation technologies, Fenton's reagent

Abstract

Chemical oxidation is widely recognized as one of the most reliable ways of decontamination of toxic organic compounds which can occur in industrial wastewater. In particular, Fenton's reagent – a catalytic system based on hydrogen peroxide combined with iron (II) ions – has proven effective for oxidizing the most toxic and persistent organic pollutants. The paper presents results of laboratory experiment on treating industrial wastewater samples with Fenton’s reagent under both static and aerated conditions as exemplified on a number of individual anthropogenic organic pollutants of different nature. Dynamics of reducing concentrations of toxicants resulting from Fenton’r reagent-driven purification under various conditions is presented. Thus, oxidation under aeration has enhanced the increase of efficiency of wastewater treatment from 72.2 to 96.8%. Concurrently, the proposed water treatment method has improved organoleptic properties of the treated samples as evidenced from the results of vapor phase analysis. The treatment procedure has led to registration of acetaldehyde alone in the treated sample, with its 40-fold level decrease relative to its initial content in the sample.

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Oxidative Destruction of Organic Compounds by Fenton’s Reagent in Industrial Wastewater Treatment

Abstract

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