A study on the degradation of endocrine disruptors and dioxins by ozonation and advanced oxidation processes

Sota Nakagawa, Yukio Kenmochi, Kaori Tutumi, Toshihiro Tanaka, Izumi Hirasawa

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    The effect of O3 treatment and AOP (Advanced Oxidation Processes) treatment on the decomposition of endocrine disrupters were investigated by using continuous type pilot plant. Reaction kinetic evaluations of these processes were also carried out. In this study, the endocrine disrupters were classified into 2 groups: (1) DXNs: dioxins and (2) EDs: endocrine disrupters other than dioxins. For the case of DXNs decomposition, highly concentrated DXNs in a incinerator washwater were degraded by UV/O3 combined treatment. Influence of O3 dosage and forms of DXNs on the reaction rate constant were evaluated. The incinerator washwater was sampled from a scrubber, which was used for the flue gas treatment of a garbage incinerator facility. For the case of EDs decomposition, the effect of O3 dosage on the reaction rate constant were investigated during O3 treatment of secondary treated sewage. Also, a comparison was made on the degradability for the above 2 groups. The following results were obtained. (1) The DXNs contained in the incinerator washwater had different decomposition properties depending on the particle size of suspended solid. Above a particle size of 1.0 μm, the reaction rate constant was relatively small and the DXNs were relatively non-degradable. On the other hand, when suspended solid particle size was below 1.0 μm, the reaction rate constant was large and the DXNs were relatively degradable. (2) The amount of decomposed DXNs per consumed O3 increased with the increase of DXNs concentrations in the influent and higher DXNs decomposition efficiencies were obtained. (3) The reaction rate constant in the EDs decomposition was larger than that in the DXNs decomposition, and the EDs were found to be relatively easy to be decomposed. Once DXNs on the suspended solid particle size larger than 1.0 μm in the incinerator washwater were non-degradable, we found that they should be filtered and concentrated separately prior to the AOP treatment to ensure an efficient treatment.

    Original languageEnglish
    Pages (from-to)840-847
    Number of pages8
    JournalJournal of Chemical Engineering of Japan
    Volume35
    Issue number9
    Publication statusPublished - 2002

    Fingerprint

    Endocrine Disruptors
    Ozonization
    Dioxins
    Refuse incinerators
    Endocrine disrupters
    Decomposition
    Reaction rates
    Degradation
    Oxidation
    Rate constants
    Particle size
    Effluent treatment
    Scrubbers
    Dosage Forms
    Sewage
    Pilot plants
    Reaction kinetics

    Keywords

    • Advanced Oxidation Processes
    • Dioxins
    • Endocrine Disrupters
    • Ozonation
    • Reaction Rate Constant

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Chemistry(all)

    Cite this

    A study on the degradation of endocrine disruptors and dioxins by ozonation and advanced oxidation processes. / Nakagawa, Sota; Kenmochi, Yukio; Tutumi, Kaori; Tanaka, Toshihiro; Hirasawa, Izumi.

    In: Journal of Chemical Engineering of Japan, Vol. 35, No. 9, 2002, p. 840-847.

    Research output: Contribution to journalArticle

    Nakagawa, Sota ; Kenmochi, Yukio ; Tutumi, Kaori ; Tanaka, Toshihiro ; Hirasawa, Izumi. / A study on the degradation of endocrine disruptors and dioxins by ozonation and advanced oxidation processes. In: Journal of Chemical Engineering of Japan. 2002 ; Vol. 35, No. 9. pp. 840-847.
    @article{284b1c36780a43c388f29df2d23c4f0d,
    title = "A study on the degradation of endocrine disruptors and dioxins by ozonation and advanced oxidation processes",
    abstract = "The effect of O3 treatment and AOP (Advanced Oxidation Processes) treatment on the decomposition of endocrine disrupters were investigated by using continuous type pilot plant. Reaction kinetic evaluations of these processes were also carried out. In this study, the endocrine disrupters were classified into 2 groups: (1) DXNs: dioxins and (2) EDs: endocrine disrupters other than dioxins. For the case of DXNs decomposition, highly concentrated DXNs in a incinerator washwater were degraded by UV/O3 combined treatment. Influence of O3 dosage and forms of DXNs on the reaction rate constant were evaluated. The incinerator washwater was sampled from a scrubber, which was used for the flue gas treatment of a garbage incinerator facility. For the case of EDs decomposition, the effect of O3 dosage on the reaction rate constant were investigated during O3 treatment of secondary treated sewage. Also, a comparison was made on the degradability for the above 2 groups. The following results were obtained. (1) The DXNs contained in the incinerator washwater had different decomposition properties depending on the particle size of suspended solid. Above a particle size of 1.0 μm, the reaction rate constant was relatively small and the DXNs were relatively non-degradable. On the other hand, when suspended solid particle size was below 1.0 μm, the reaction rate constant was large and the DXNs were relatively degradable. (2) The amount of decomposed DXNs per consumed O3 increased with the increase of DXNs concentrations in the influent and higher DXNs decomposition efficiencies were obtained. (3) The reaction rate constant in the EDs decomposition was larger than that in the DXNs decomposition, and the EDs were found to be relatively easy to be decomposed. Once DXNs on the suspended solid particle size larger than 1.0 μm in the incinerator washwater were non-degradable, we found that they should be filtered and concentrated separately prior to the AOP treatment to ensure an efficient treatment.",
    keywords = "Advanced Oxidation Processes, Dioxins, Endocrine Disrupters, Ozonation, Reaction Rate Constant",
    author = "Sota Nakagawa and Yukio Kenmochi and Kaori Tutumi and Toshihiro Tanaka and Izumi Hirasawa",
    year = "2002",
    language = "English",
    volume = "35",
    pages = "840--847",
    journal = "Journal of Chemical Engineering of Japan",
    issn = "0021-9592",
    publisher = "Society of Chemical Engineers, Japan",
    number = "9",

    }

    TY - JOUR

    T1 - A study on the degradation of endocrine disruptors and dioxins by ozonation and advanced oxidation processes

    AU - Nakagawa, Sota

    AU - Kenmochi, Yukio

    AU - Tutumi, Kaori

    AU - Tanaka, Toshihiro

    AU - Hirasawa, Izumi

    PY - 2002

    Y1 - 2002

    N2 - The effect of O3 treatment and AOP (Advanced Oxidation Processes) treatment on the decomposition of endocrine disrupters were investigated by using continuous type pilot plant. Reaction kinetic evaluations of these processes were also carried out. In this study, the endocrine disrupters were classified into 2 groups: (1) DXNs: dioxins and (2) EDs: endocrine disrupters other than dioxins. For the case of DXNs decomposition, highly concentrated DXNs in a incinerator washwater were degraded by UV/O3 combined treatment. Influence of O3 dosage and forms of DXNs on the reaction rate constant were evaluated. The incinerator washwater was sampled from a scrubber, which was used for the flue gas treatment of a garbage incinerator facility. For the case of EDs decomposition, the effect of O3 dosage on the reaction rate constant were investigated during O3 treatment of secondary treated sewage. Also, a comparison was made on the degradability for the above 2 groups. The following results were obtained. (1) The DXNs contained in the incinerator washwater had different decomposition properties depending on the particle size of suspended solid. Above a particle size of 1.0 μm, the reaction rate constant was relatively small and the DXNs were relatively non-degradable. On the other hand, when suspended solid particle size was below 1.0 μm, the reaction rate constant was large and the DXNs were relatively degradable. (2) The amount of decomposed DXNs per consumed O3 increased with the increase of DXNs concentrations in the influent and higher DXNs decomposition efficiencies were obtained. (3) The reaction rate constant in the EDs decomposition was larger than that in the DXNs decomposition, and the EDs were found to be relatively easy to be decomposed. Once DXNs on the suspended solid particle size larger than 1.0 μm in the incinerator washwater were non-degradable, we found that they should be filtered and concentrated separately prior to the AOP treatment to ensure an efficient treatment.

    AB - The effect of O3 treatment and AOP (Advanced Oxidation Processes) treatment on the decomposition of endocrine disrupters were investigated by using continuous type pilot plant. Reaction kinetic evaluations of these processes were also carried out. In this study, the endocrine disrupters were classified into 2 groups: (1) DXNs: dioxins and (2) EDs: endocrine disrupters other than dioxins. For the case of DXNs decomposition, highly concentrated DXNs in a incinerator washwater were degraded by UV/O3 combined treatment. Influence of O3 dosage and forms of DXNs on the reaction rate constant were evaluated. The incinerator washwater was sampled from a scrubber, which was used for the flue gas treatment of a garbage incinerator facility. For the case of EDs decomposition, the effect of O3 dosage on the reaction rate constant were investigated during O3 treatment of secondary treated sewage. Also, a comparison was made on the degradability for the above 2 groups. The following results were obtained. (1) The DXNs contained in the incinerator washwater had different decomposition properties depending on the particle size of suspended solid. Above a particle size of 1.0 μm, the reaction rate constant was relatively small and the DXNs were relatively non-degradable. On the other hand, when suspended solid particle size was below 1.0 μm, the reaction rate constant was large and the DXNs were relatively degradable. (2) The amount of decomposed DXNs per consumed O3 increased with the increase of DXNs concentrations in the influent and higher DXNs decomposition efficiencies were obtained. (3) The reaction rate constant in the EDs decomposition was larger than that in the DXNs decomposition, and the EDs were found to be relatively easy to be decomposed. Once DXNs on the suspended solid particle size larger than 1.0 μm in the incinerator washwater were non-degradable, we found that they should be filtered and concentrated separately prior to the AOP treatment to ensure an efficient treatment.

    KW - Advanced Oxidation Processes

    KW - Dioxins

    KW - Endocrine Disrupters

    KW - Ozonation

    KW - Reaction Rate Constant

    UR - http://www.scopus.com/inward/record.url?scp=0036709154&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0036709154&partnerID=8YFLogxK

    M3 - Article

    AN - SCOPUS:0036709154

    VL - 35

    SP - 840

    EP - 847

    JO - Journal of Chemical Engineering of Japan

    JF - Journal of Chemical Engineering of Japan

    SN - 0021-9592

    IS - 9

    ER -